HORA Holter Regelarmaturen - M2.2(Y) - M2.3(Y) · “M2.1 – M2.3” Electric Linear Actuator with Zero Voltage Readjusting Device mm 0.9 kN resp. 2.2 kN Reg.-No.: 244736 QM Operating

“M2.1 – M2.3”

Electric Linear Actuatorwith Zero Voltage

Readjusting Device 0.9 kN resp. 2.2 kNm m

Reg.-No.: 244736 QM

Operating instructions Edition 10/2003Technical modifications reserved

This product fulfills the requirements of the CE certification.The EC declaration of conformity for the described product can be looked up

Holter Regelarmaturen GmbH & Co. KG

Helleforthstr. 58 - 60

33758 Schloß Holte-Stukenbrock

Telefon (0 52 07) 89 03-0Telefax (0 52 07) 89 03-80e-mail [email protected] http://www.hora.de

S T E L L A N T R I E B E

Contents

Page

Hint, reservation of the right of modification and proprietary right. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Safety information and warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Transport and storage, warranty, safety symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1. Technical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.1 General description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.2 Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.3 Mode of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.4 Technical data for M2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.5 Closing force depending on travel with M2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.6 Dimensions for M2.1 with outgoing driving rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101.7 Dimensions for M2.1 with ingoing driving rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.8 Technical data for M2.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121.9 Closing force depending on travel with M2.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.10 Dimensions for M2.2 with outgoing driving rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141.11 Dimensions for M2.2 with ingoing driving rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.12 Technical data for M2.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.13 Closing force depending on travel with M2.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.14 Dimensions for M2.3 with outgoing driving rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181.15 Dimensions for M2.3 with ingoing driving rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192. Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202.1 Installation conditions and mounting position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202.2 Actuation of the linear actuator with electric hand-adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202.3 Combination of the linear actuator with emergency adjusting function with a valve. . . . . . . . . . . . . . . . . . . . 213. Electric connection – safety prescriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223.1 Lifting the hood off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223.2 Making the electric connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223.3 Test run of the actuator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234. Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244.1 Adjustment of the travel dependent end position switch S1 in closing direction “outgoing driving rod”. . . . 244.2 Adjustment of the travel dependent end position switch S2 in opening direction “ingoing driving rod”. . . . . 254.3 Adjustment of the potentiometers in actuators M2.1 and M2.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.4 Adjustment of the potentiometers in actuator M2.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275. Retrofit of travel switches S3 and S4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285.1 Mounting of travel dependent switches S3 and S4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285.2 Adjustment of travel dependent switches S3 and S4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286. Retrofit of potentiometers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296.1 Retrofit of the potentiometer assembly cpl. in actuators M2.1 and M2.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296.2 Retrofit of the potentiometer assembly cpl. in actuator M2.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307. Electronic positioner “PEL”. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317.1 Mounting and adjustment of the actuator with “PEL”. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317.2 Electric connection of the supply line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337.3 Test run of the actuator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347.4 Adjustment of the limit switches and potentiometers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347.5 Connection of the control line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347.6 Connection of the control signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .357.7 Test run of the actuator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357.8 Making corrections with trimming potentiometers “A” and “B”. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357.9 Reversal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357.10 After termination of adjusting works and test run effected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357.11 Modification of the desired setpoint value (V in mA or vice versa). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357.12 Adjustment of the signal range of the desired setpoint value (voltage and current range). . . . . . . . . . . . . . . 367.12.1 Example: 4 ... 20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367.12.2 Example: sequence range 6 ... 12 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367.13 Feedback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379. Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Operating instructions linear actuator with zero voltage readjusting device “M2.1 – M2.3” page 2 of 37

Hint......................................................................................

For reasons of clearness the operating instructions cannot include all detailed information to alltypes of the product and thus cannot take into consideration every thinkable case of installation,application, operation or up-keep. In case of doubt, the German text shall be applicable(available on request).

With a posterior equipment of the actuator with other than original parts, respectively retrofitswithout being known by the manufacturer of the actuator the CE certification of the actuator aswell as any liability of the manufacturer of the actuator lose their validity for this actuator.

If you desire more detailed information or if any special problems should arise, which have notbeen described sufficiently in these instructions, please ask the supplier of the actuator resp.valve for the required information.

We point out furthermore that the contents of these operating instructions is not part of a formeror of an existing agreement, a promise or of a legal relationship nor is to alter it.

All obligations on the part of the manufacturer of the actuator result from the respectivepurchase contract respectively the terms and conditions containing the complete and solely validwarranty regulations. The contractual warranty terms are neither extended nor limited by thestatements of the operating instructions.

Reservation of theright of modification and proprietary right......................

The prescriptions, directives, standards etc. mentioned in these operating instructions conformto the state of information during the time of the elaboration of these operating instructions andare not subject to any alteration service. They are to be applied by the operator in ownresponsibility each time in their latest, valid version.

The right to making technical changes and improvements at any time is kept reserved withregard to all data, indications, hints and depictions in these instructions.

Any claim to changing and subsequently improving appliances that have already been deliveredremains excluded.

The copyright concerning these operating instructions and also all rights in case of a grant ofpatent or a registration of utility model remain with the manufacturer of the actuator.


Safety information..............................................................The linear actuator here described is an electric appliance:! it is part of a power plant for industrial application! it is laid out in accordance with the generally acknowledged rules of engineering

Electrical equipment can – owing to circumstances – cause severest injury to health or materialdamages because of! inappropriate application! false operation! improper electrical connection! inappropriate assembly onto a control element!non-observance of ambient and operating conditions! inadmissible intervention! inadmissible removal of an existing coverage! inappropriate transportation! inappropriate storage

Warning...............................................................................Mount and operate this appliance only, if previously qualified personnel has provided thatappropriate power supplies are utilised assuring that during normal operation or in case of plantor plant parts failure no dangerous voltages can reach the appliance.If you do not observe this warning, there can occur death, severe body injuries oressential material damages.Pay attention to moving parts during the mounting and adjustment. There exists the danger ofbeing injured and the risk of essential material damages.

Those persons who are responsible for the safety of the installation must therefore grant that! only qualified persons are charged with the works on this appliance! these persons have read and understood the operating instructions and product information

attached (we recommend our customers to have this confirmed by the mounting personnel inwriting)

! the operating instructions are constantly available and the respective persons are obliged toconsistently observe them with all their works (before starting to carry out any works guided bythe operating instructions, there should eventually existing complementary instructions anddocuments about valves and control elements of these instructions be attached)

!with corresponding works a workman-like application of tools, measuring instruments and, ifnecessary, the use of personal protective equipments is effected

!works on this appliance or in its vicinity are interdicted to not qualified personnel

Qualified personnelare persons who are familiar with the set-up, mounting, commissioning and operation of theproduct and dispose of the respective qualification with regard to their activity, p.e.! training or instruction respectively authorisation to switch on and off power circuits and

appliances/systems according to the standards of safety technology and to release, earth andmark these

! training or instruction according to the standards of safety technology in the attendance anduse of adequate safety equipment

! schooling in first aid


Transport and Storage.......................................................

Concerning transport and storage of the linear actuator the following is to be observed:!The transport to the place of installation must be effected in a firm packing! If the linear actuator is built on valve, the hoist must not be fixed on the actuator!Store the actuator in a well aerated and dry room!Protect the actuator against humidity of the soil by storing it in a shelf or on a wooden grid!Fix a sheathing to protect against dust and filth etc.

Warranty..............................................................................

No warranty is accepted for damages, which have arisen due to:! non-observance of the operating instructions! inappropriate or inexpert utilisation!defective mounting respectively commissioning through the buyer or third parties!natural wear!defective or negligent handling! chemical or electrochemical influences, inasmuch these must not be attributed to a fault of the

manufacturer! improper changes respectively repair works made by the buyer or third parties!action by parts of foreign origin

Explanation of the safety symbols and notions..............

This sign means: DANGER!In case of non-observance lethal danger can exist respectively severe physical injuries and/oressential material damages can occur.

This sign means: HINT!The hint marks technical relationships, to which it is especially pointed out. In case ofnon-observance there can occur deficient functions, operating disturbances and perhapsconsequential damages.

This sign means: INFORMATION!This sign gives necessary information about details that have to be observed.In case of non-observance deficient functions can occur.


i

1. Technical description

1.1 General descriptionThe linear actuator with zero voltage readjusting device (in short: M2.1 – M2.3) is anactuating and variable-speed drive, the driving rod of which in a case of power failure will movespring-actuated into an end position, i.e. into the closed position of the valve. The closedposition can be reversed by installing the piston and both closing springs as needed. Thisreversal is only feasible by the relevant work in the factory, however, respectively upon ordering.The normal version has an outgoing driving rod in case of power failure.Actuator M2.1 – M2.3 is fixed on the valve by means of yoke and flange. Valve stem anddriving rod of the actuator are linked with the rotatory threaded bush and fixed with a hexagonalcounternut.The installation position is arbitrary, except with the actuator hanging downwards.The OPEN and CLOSE positions of the valve are marked by set collars fixed on a rod.The mains voltage is!1~50 Hz/230 V!as option 1~50 Hz/24 V!or different mains voltages with respective motor and coupling magnet

1.2 DesignThe linear actuators are laid out for maximum thrust. The electrical components areincorporated under the hood – separate from the gearing. They are thus protected from! perhaps harmful operating conditions!perhaps harmful environmental conditions!humidity!dustAll components are easily accessible after removal of the hood.To the basic equipment there belong! 2 travel dependent switches (“S1” and “S2”)Additionally there can be built in! 1 or 2 travel dependent switches (“S3” and “S4”). They switch off travel dependently in the end

positions. They can signal intermediate and end positions, too.!1 or 2 potentiometers!1 electronic positioner “PEL” (electronic position regulator) for analog triggering 0 (2) ... 10 V

respectively 0 (4) ... 20 mA


1.3 Mode of operationAfter an orderly electrical connection and after laying on the continuous voltage (see chapter 3)the clutch operating magnet [1] will attract, the clutch [2] will be forming a slaving having positivefit due to half-couplings milled on the front side and the actuating drive respectivelyvariable-speed drive will thus be ready to operate.By means of reversible synchronous motor, gearing and connection lever the driving rod ismoved out or in. Due to its permanent magnet way of construction the synchronous motor in itsdead state also has a detent torque, which is together with the gearing so strong, that the drivingrod of the actuator can perfectly be stopped in any position without a measurable overtravel. Thefinal switch-off is effected via the two travel switches S1 and S2.If the voltage fails, the clutch [2] is brought out of its front pressure meshing by means of theincorporated cup springs; the motor and part of the gearing is thus uncoupled and the drivingrod is moved to closed position by means of spring power. 2 helical compression springsfunction as closing springs.In order to obtain a retardation of the closing procedure in case of a voltage failure a mechanicalcentrifugal brake [18] is fixed on the revolving part of the gearing. It is dimensioned in a way thaton the one hand the prescribed closing time is obtained, on the other hand no restraint isimpeding the operation of the motor.The bore [15] formed as an oblong hole in the two connection levers [16] between gearing anddriving rod enables a simple and quick adjustment of the travel switch in closing direction. Incase of a correct adjustment (see chapter 4) the locking pressure is generated also uponmotor-driven operation by both closing springs.

Figure 1.3: Top view on actuators M2.1 – M2.3


1.4 Technical data for M2.1

adhesive oil Renolit Al-WIK 260 XLubricant for gearing:2 travel dependent signal switches “WE”, 10 A, max. 250 V ACEnd switching:100 mmSpace for taking off the hood:approx. 8.7 kgWeight:S1 – 100% c.d.f.Operating mode (VDE 0530):via internal terminal strip with max. 4 screwed glands M20 x 1.5Electric connection:

1~50 Hz/230 V; (1~50 Hz/24 V, 1~50/60 Hz/110 V)– different voltage on request –

Power supply:flange mounting acc. to DIN 3358 – F05Mounting B:yokeMounting A:IP 54Degree of protection (DIN 40050):any, except with the actuator hanging downwardsMounting position:0 °C up to +50 °CPermissible ambient temperature:electric with push-button keys (only if voltage is applied)Manual adjustment:

outgoing driving rod out of the actuator(ingoing driving rod into the actuator also possible)

Closing direction: 0.9 kN (for travel 35 mm)mClosing force:

approx. 8.5 s (for travel 35 mm)Closing time:In case of power failure:

17.5 mm/minOperating speed:max. 35 mmTravel/stroke: 0.9 kN (for travel 35 mm)mTripping force/Closing force:

M2.1 (tested by TÜV/Technical Inspectorate acc. to DIN 32730)Type:

– different voltage or frequency on request –100%100%Cyclic duration factor (c.d.f.):

1515Power consumption: W20421.3Magnetic voltage: V DC23024Rated voltage: V

Magnetic data:375375Rotation speed: rpm3.23.8Power output: W8.58.1Power consumption: W38340Rated current: mA23024Rated voltage: V

1-phase AC 50 HzOperating voltage/frequency:17.5 mm/minPositioning speed:

Motor data:

1 electronic positioner “PEL” for analog triggering 0 (2) ... 10 Vresp. 0 (4) ... 20 mA; equi-directional feedback included

resp. 1 electronic position transmitter “ESR” 24 V DC,output 0 (4) ... 20 mA

1 (max. 2) potentiometers 100 , 200 , 500 , 1 k , 2 k ,� � � � �

5 k or 10 k . – further ohmic values on request –� �

max. 1.5 W, wiper current max. 30 mA

Signalling unit:

1 (max. 2) travel dependent signal switches “WE”, max. 250 V ACfor ohmic load, max. 10 Afor inductive load, max. 5 Afor signal lights, max. 1 A

Additional equipment:


1.5 Closing force depending on travel with M2.1

Figure 1.5: Closing force diagram for actuator M2.1; driving rod going out of the actuator in case of power failure

Operating instructions linear actuator with zero voltage readjusting device “M2.1 – M2.3” Page 9 of 37

M2.1

1.6 Dimensions for M2.1 with outgoing driving rod

Figure 1.6-1: Dimensions for actuator M2.1 with yoke Figure 1.6-2: Dimensions for actuator M2.1with flange mounting F05


1.7 Dimensions for M2.1 with ingoing driving rod




adhesive oil Renolit Al-WIK 260 XLubricant for gearing:2 travel dependent signal switches “WE”, 10 A, max. 250 V ACEnd switching:100 mmSpace for taking off the hood:approx. 9.3 kgWeight:S1 – 100% c.d.f.Operating mode (VDE 0530):via internal terminal strip with max. 4 screwed glands M20 x 1.5Electric connection:

1~50 Hz/230 V; (1~50 Hz/24 V, 1~50/60 Hz/110V)– different voltage on request –

Power supply:flange mounting acc. to DIN 3358 – F05Mounting B:yokeMounting A:IP 54Degree of protection (DIN 40050):any, except with the actuator hanging downwardsMounting position:0 °C up to +50 °CPermissible ambient temperature:electric with push-button keys (only if voltage is applied)Manual adjustment:



approx. 8 s (for travel 35 mm)Closing time:In case of power failure:







Motor data:






Signalling unit:







M2.2








adhesive oil Renolit Al-WIK 260 XLubricant for gearing:2 travel dependent signal switches “WE”, 10 A, max. 250 V ACEnd switching:100 mmSpace for taking off the hood:approx. 10 kgWeight:S1 – 100% c.d.f.Operating mode (VDE 0530):via internal terminal strip with max. 4 screwed glands M20 x 1.5Electric connection:

1~50 Hz/230 V; (1~50 Hz/24 V, 1~50/60 Hz/110 V)– different voltage on request –

Power supply:flange mounting acc. to DIN 3358 – F05Mounting B:yokeMounting A:IP 54 – IP 65 on request –Degree of protection (DIN 40050):any, except with the actuator hanging downwardsMounting position:0 °C up to +50 °CPermissible ambient temperature:electric with push-button keys (only if voltage is applied)Manual adjustment:



approx. 12 s (for travel 46 mm)Closing time:In case of power failure:







Motor data:






Signalling unit:







M2.3







2. Mounting

2.1 Installation conditions and mounting positionThe mounting spot for the linear actuator must be chosen in a way that! the actuator is easily accessible! sufficient free space is available for taking the hood off, resp. in order to carry out adjusting

works! the linear actuator will be protected against strong heat radiation! the environmental temperature will not be more than +50 °C

In open air the linear actuator must be protected with an additional coverage against! rain!direct insolation! strong draught air! dust influenceIn case of strongly oscillating ambient temperatures and high air humidity the installation of aheating resistor is recommendable in order to minimize the formation of condensate in theactuator. Actuator coverages with suppressed cold bridges (double hoods) are recommended. Inthe open, respectively an environment having high pollutant concentrations, e.g. areas having ahigh traffic rate, industrial areas (chemical plants, sewage works, etc.) coastal regions and opensea, the actuators must additionally be provided with external blinds of non-corrosive materialand also with a special lacquering.

The installation position is arbitrary, however not overhead. In case of an installation positionwith horizontally situated driving rod the linear actuator is mounted in a way that both columns ofthe yoke are situated in a vertical level one above the other.

Figure 2.1: Assembly of the actuator with yoke with horizontally situated driving rod

2.2 Actuation of the linear actuator with electric hand-adjustmentThe linear actuator has an electric regulation set by hand, which is actuated via two push-buttonkeys [23] located on the bottom side. The push-button keys are functioning only, if the actuatoris electrically connected to the operating voltage (see chapter 3.2).

Actuation of the outer push-button key(on depiction the right key)� driving rod moves out of the actuator

Actuation of the inner push-button key(on depiction the left key)� driving rod moves into the actuator

Simultaneous actuation ofboth push-button keys� actuator stays in stopped position

Figure 2.2: Manual actuation of the linear actuator with emergency adjusting function


2.3 Combination of the linear actuator with emergency adjusting functionwith a valveBefore making the assembly check whether! the technical data of the linear actuator conform to the conditions of application! the valve is complete (tie-bar or flange at valve)! the thread of the valve spindle conforms with the threaded bush of the linear actuator! the linear actuator is complete with bottom flange or yoke columns and respective coupling

parts for the assembly with the provided valve! the perhaps required additions in the actuator have already been built in! the to-be-connected operating voltage conforms to the voltage of the actuator! the indications on the name plate conform with the indications given on the motor! the adjusted or still to-be-adjusted stroke of the actuator conforms with the stroke of the valveMake the electric connection before mounting the actuator type M2 to a valve (see chapter3.2)!

In the state of delivery the driving rod of the actuator with emergency adjusting function ismoved out until the lower final position, resp. is moved in until the upper final position with type“ingoing in case of power failure”.

Figure 2.3: Coupling / mounting the actuator onto a valve


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3. Electric connection – safety prescriptions

Mains connection and commissioning of this linear actuator require special know-how about theerection of power installations (DIN VDE 0100), the knowledge of accident prevention and of thespecial commissioning conditions of this linear actuator.These works must only be carried out by qualified personnel. In case of non-observance ofthis warning there can death, severe physical injuries or essential material damages bethe outcome!

Observe the safety information on page 4 of these operating instructions!

!Carry out mains connection only with power supply switched off! Safeguard againstunintentional switching on!

!For installing electric lines and the mains connection the DIN/VDE regulations for theinstallation of power systems and equipment, as well as the provisions of the localElectricity Board must be observed!

!Check the mains connection voltage and frequency for conformity on the name plate of thelinear actuator and also the name plate of the driving motor.

!The conductor cross section must always be laid out according to the respective powerconsumption of the linear actuator and the required length of the line.

Too small conductor cross sections are a frequent cause for supposed “operating disturbances”!!Minimum cross section of the conductor for this type of linear actuator: 1 mm².!Mains fuse protection concerning the installation: max. 6 A.!Disconnection from mains supply concerning the installation: for the separation and voltage

release of the mains lead to the actuator for maintenance and adjustment works a respectivebreaker unit must be utilised granting an all-pole separation (except the earth lead). Thisbreaker unit must be lockable in the state of breaking and be safeguarded againstunintentional switch-on.

3.1 Lifting the hood offIn case of maintenance and adjustment works switch the supply line to dead state first!!Screw off cap nut!Take off gasket!Pull hood off

3.2 Making the electric connectionOn principle the wiring diagram glued into the hood is applicable.!Remove blind plug and instead turn in corresponding screwed cable gland with strain relief or

a sealing inset authorised for the strain relief and tighten well; this sealing inset must bechosen appropriate for the conductor cross section

!Slide the supply line through the screwed cable gland until enough length of line exists to thecorresponding supply terminals

!Strip the line wrapping about 1 cm above the actuator housing!Strip the individual cores at a distance of about 5 mm from the end!Concerning the cores of stranded wires the end sleeves are to be slided onto the stripped end

and be crimped!Guide and fasten the lines in the actuator in a way that they are protected from moving or

rotating parts and are not damaged when taking the hood off or putting it back


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Connect the actuator as follows:!Connect the safety earth conductor of the supply line (cores green/yellow) to the provided

safety earth terminal!Connect the zero conductor “N” of the supply line to terminal N!Connect the permanent phase L (operating voltage) to terminal 40!Connect control cable for ingoing driving rod to terminal 2!Connect control cable for outgoing driving rod to terminal 3L-conductor (permanent phase) and control cables must be of the same supply-cable conductor(correct terminal-phase connections), as otherwise a short circuit will happen upon actuation ofthe electric hand-adjustment.

Fig. 3.2-1: Wiring diagram forM2.1M2.2M2.3

!Switch on permanent voltage!With voltage being put on correctly the magnet [1] will attract,

will engage the clutch [2] and will thus enable theelectric hand-adjustment of the actuator

!Move in the driving rod [4] of the actuator by2 mm by means of the electric hand-adjustment

!Push the valve spindle into the valve untillimit stop

!Set the actuator completely onto the valve!Screw the threaded bushing [5] so far on the

valve bar, until the flange of the actuator will beflush adjacent on the seat-engaging surface [F]of the valve

!Fix the flange of the actuator on the valve witha screw [6] or impact nut

!Fix the threaded bushing [5] on the valve barby means of a hexagonal lock nut [7] Figure 3.2-2: Position of parts in actuator M2

3.3 Test run of the actuatorDANGER !!!The linear actuator without hood may be short-term-operated only during test runrespectively for indispensible adjusting works on electrical options such as p.e.potentiometer, travel switch or electronic positioner.During this activity there exists access to dangerous live, blank, moving and rotatingparts. In case of inappropriate or uncautious execution of the adjusting works there candeath, severe physical injuries or essential material damages be the outcome.Only qualified personnel (see page 4) is allowed to carry out this activity.The operation of the linear actuator without hood is interdicted for a purpose different towhat has been described as mentioned before.


4. Adjustment

4.1 Adjustment of the travel dependent end position switch S1 inclosing direction “outgoing driving rod” out of the actuatorAdjustment of the travel limit switch “WE” [8]; operating voltage must be applied to:!Move in driving rod by about 10 mm by means of electric hand-adjustment!Cut off voltage from the device (simulating voltage failure) and travel actuator into closed

position by means of closing springs!Adjust stroke indicator ring [10] (see figure 4.3), if existing!Turn the cam [9] with a screwdriver (blade width 3 mm) so far, until the switching bevel of

the cam will be adjacent to the switching roller of the switch, without actuating theswitch though

Pay attention to the turning respectively switching direction of the cam. When re-adjusting thecam, hold fast the output wheel [11].As the driving rod is already in closed position, the gear – upon approaching the end position bymeans of the motor – will be moving in the end position until the switch will be actuated via thecam bevel and will stop the motor. During this after-run of the gear the bolt in the oblong hole[15] of the connection levers [16] will move about 1 to 1.5 mm down. With that it is ensured thatthe full closing pressure of the closing springs is available and the adjustment of the travel limitswitch will not require an excessive diligence.

Figure 4.1-1: Adjustment of end switch – S1 Figure 4.1-2: Top view on actuators M2.1 – M2.3


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4.2 Adjustment of the travel dependent end position switch S2 in openingdirection “ingoing driving rod” into the actuatorAdjustment of the travel limit switch “WE” [12]; operating voltage must be applied to:!Move in driving rod by means of electric hand-adjustment until the clutch [2] will no longer be

turning, but solely make left-right pendulum movements; the maximum opening position of thevalve is reached then

!Turn cam [13] with a screwdriver (blade width 3 mm) so far, until the switching bevel of thecam will actuate the switch and the switching roller will have reached the highest peak of theswitching bevel (outside diameter of the cam)

Hereto do not untighten lock nuts [17]!

Figure 4.2-1: Adjustment of end switch – S2 Figure 4.2-2: Top view on actuators M2.1 – M2.3

From the insignificant overrun of the switch point when adjusting the switch cam it results thatthe motor is stopped briefly before the maximum valve opening position is reached. It mustabsolutely be observed that the motor is electrically switched off in opening direction via thetravel limit switch and is not mechanically shut down by the valve. This could lead to delayeddamages on the gear.Observe the turning respectively switching direction of the cam.The switching cams are safeguarded against torsion by inserted snug discs, which are guided inthe slot of the cam shaft. This does, however, not exclude that due to dimensional tolerances acertain clearance exists. It means that upon the re-adjustment of a switch cam the adjoiningswitch cam can jointly be turning by 1–2°. It is therefore recommendable, upon a quite exactadjustment of the switch cams, to start the adjustment with S1 and to continue it via S2 until S4and to keep the switch cam, that has already been adjusted, fixed with a second screwdriver.!Adjust stroke indicator ring [14] (see figure 4.3), if existent


4.3 Adjustment of the potentiometers in actuators M2.1 and M2.2(Actuator without operating voltage and in closed position)!Untighten both fixing screws [20] of the potentiometer assembly plate [21]!Adjust the desired stroke according to scale and tighten the fixing screws [20] again; the

stroke scale is related to the middle of the screw head!Turn the slotted potentiometer shaft [22] by means of a screwdriver till to the corresponding

mechanical turn angle limit; this is possible due to the built-in slip between potentiometer shaftand plastic pinion

Observe the turning direction of the potentiometer.!Put on operating voltage and move the actuator into opening position by means of electric

hand-adjustment [23], i.e. all the way to the switching point of the limit switch!Observe the potentiometer motion by means of a measuring device (ohmmeter) and

determine, whether the complete turn angle of the potentiometer is passed through!With too small or too big a turn angle of the potentiometer make a corresponding correction of

the stroke adjustmentTurn angle too big = stroke adjustment too small;friction clutch on driven gear [11] glides through � adjust a bigger strokeTurn angle too small = stroke adjustment too big � adjust a smaller stroke

Mounting dimension L3Stroke 20 – L3 = 22 mmStroke 30 – L3 = 32 mmStroke 35 – L3 = 37 mm

Figure 4.3: Actuators M2.1 and M2.2


4.4 Adjustment of the potentiometers in actuator M2.3The transmission of the toothed wheel of the cam shaft to the pinion of the potentiometer is fixedand is laid out to the maximally feasible stroke of the actuator. With nominal stroke plus about1.5 mm for prestressing the cup springs in the both-way operative spring coupling, plus about1 mm of switching path for the travel dependent switch-off the potentiometer deflection is about90%. With smaller strokes a smaller potentiometer deflection is effected accordingly.!After the adjustment of the tripping cams [9] and [13] for the travel dependent limit switches

S1 [8] and S2 [12] put on operating voltage!Move drive spindle by means of electric hand-adjustment [23] to both end positions until the

set switches S1 and S2 will be switching; the potentiometer [22] will herewith automatically beadjusted

! If necessary turn the potentiometer on the rear side with a screwdriver to corresponding stoprespectively to 0; this is possible due to the incorporated slip between potentiometer shaft andplastic pinion (potentiometer pinion)

Observe turning direction of potentiometer.

Mounting dimension L3Stroke 46 – L3 = 48 mm

Figure 4.4: Actuator M2.3


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5. Retrofit of travel switches S3 and S4

5.1 Mounting of the travel dependent switches S3 and S4!Switch the actuator dead!Remove hood!Untighten nuts [166] and screw them off the threaded bolt!Take off corrugated washers [157]!Stick on switch “WE” S3 (switch with shorter wiring harness) on threaded bolt (congruent with

switches S1 and S2)!Stick on switch “WE” S4 (congruent with S3)!Lay on insulation plate [57]!Lay on corrugated washers [157]!Screw on and tighten nuts [166]!Connect wiring harnesses of switches S3 and S4 onto the existing terminal strip!Connect stranded interconnecting wires of WE-switch S3;

stranded wire green in terminal 16, stranded wire red in terminal 17 and stranded wire yellowin terminal 18

!Connect stranded interconnecting wires of WE-switch S4;stranded wire green in terminal 19, stranded wire red in terminal 20 and stranded wire yellowin terminal 21

5.2 Adjustment of the travel dependent switches S3 and S4!Put on operating voltage!Move actuator by means of electric hand-adjustment to the corresponding switching point!Turn cams of S3 respectively S4 with a screwdriver (blade width 3 mm) so far, until the

switching bevel of the cam will actuate the switch (passage between terminal 17 and terminal18 respectively between terminal 20 and terminal 21)

Hereto do not untighten lock nuts [17]! When re-adjusting the cam hold fast the driven gear [11](also see chapter 4.1). Observe that the tripping cam [13] for S2 will not move and perhapskeep it held with a screwdriver.

Figure 5.2: Retrofit of WE-switches S3 and S4


6. Retrofit of potentiometers

6.1 Retrofit of the potentiometer assembly cpl. in actuatorsM2.1 and M2.2! Insert hexagonal stay bolts [1] into the provided bores [2] in the plate!From the rear side push split washer onto threaded bolt!Tighten it with nut M4!Drive actuator to middle position of the to-be-adjusted stroke!One after the other plug the brass disc [3], perhaps adjusting washer 0.1 thick for axial play,

toothed wheel [4] with carrier pin [5] and brass bushing [6] onto the threaded bolt [7] existingon the gearing plates

Pay attention that the carrier pin [5] stands aligned with regard to the stay bolts [1] and left fromthe centre of rotation of the toothed wheel [4].!Push brass bushing [6] in direction of the toothed wheel situated on the switch cam shaftHerewith have an eye on tooth clearance; it should be close to zero.!Screw toothed wheel tight with nut M4! Insert potentiometer [9] together with spacer ring [15] into corresponding bore of the mounting

plate [10] and screw it down loosely!Plug plastic pinion [12] with circlip [13] on potentiometer shaft and tighten potentiometerHerewith have an eye on tooth clearance between plastic pinion [12] and toothed wheel [14]; itshould be close to zero.!Solder wiring harness onto potentiometer, if not yet done!Turn toothed wheel [14], once to its left stop and once to its right stop; herewith the

potentiometer is adjusted for its complete turn angle!Turn toothed wheel [14] until the slot will be aligned parallel to the slots in the plate [10]!Screw mounting plate [10] with screws M4 and washers tight on hexagonal stay bolt [1]Desired stroke on engraved scale on the mounting plate must roughly coincide with the centrepoint of the fixing screw.!Connect wiring harness of the potentiometer to terminal strip according to wiring diagram!Drive the actuator electrically through and verify, whether the potentiometer end position and

switch-off point correspond with each other in “open” and “close” direction!Verify with measuring instrument! If necessary slightly shift mounting plate [10] (see chapter 4.3)

Figure 6.1: Retrofit of potentiometers in actuators M2.1 and M2.2


6.2 Retrofit of the potentiometer assembly cpl. in actuator M2.3!Screw the potentiometer assembly cpl. [21] with potentiometer [22] with both supplied screws

[20] and toothed discs in the provided bores onto the actuating plateSee to have little tooth clearance between between the toothed wheel of the cam shaft and theintermediate wheel of the potentiometer assembly.!Guide potentiometer stranded wires to corresponding terminal strip and connect them

according to wiring diagram!Adjustment of the potentiometers acc. to chapter 4.4

Figure 6.2: Retrofit of potentiometers in actuator M2.3


7. Electronic Positioner “PEL” (Position Regulator)

The electronic positioner serves to control, regulate and position final controlling elements, suchas linear, part-turn and turn actuators. An internal window discriminator (TCA 965) functions as athree-step controller. The controlled variable (actual value) is compared to the reference variable(setpoint) within the range of 0 ... 10 V DC or 0 ... 20 mA and, in case of deviation, amanipulated variable is generated to trigger the control element. The triggering is kept until thesetpoint and the actual value are equal. The actual value (feedback) requires a potentiometer of1000 . This feedback potentiometer is coupled to the actuator’s movement directly or via a�

to-be-built-in switching and signalling unit in the actuator.The incremental control coefficient (window range or dead zone) is formed by a voltage dividerand is 165 mV, resp. 0.33 mA. Changing the dimensioning of resistor R7 is changing theincremental control coefficient. Smaller resistance value = smaller window; higher resistancevalue = bigger window. The value of the hysteresis is 18 mV, resp. 0.036 mA.The input of the electronic positioner is optional. It can be triggered in the range of 0 ... 10 V or0 ... 20 mA without switchover and without reverse soldering of resistors. Triggering with volts ison terminal 57 (negative pole) and on terminal 56 (positive pole). Triggering with milliampère ison terminal 57 (negative pole) and on terminal 59 (positive pole). The permanent residual ripplepercentage at the input must not exceed 20% of the setpoint value.The input resistance with setpoint value in mA is 499 .�

Induced voltage peaks occurring now and then are to a very large extent blocked off by inputprotective circuits. In order to, if possible, prevent inducing of the setpoint it must be led to theactuator in separated cables with a shielding tin-plated copper wicker covering. The shield mustbe laid onto the housing earth electrode by corresponding screwed cable glands both on side ofthe actuator and the sensor.It is further possible to drive the electronic positioner in sequential operation. The smallestsequential range is 2 V, resp. 4 mA and is adjusted with trimming potentiometers “A” and “B”.The position of the sequence within the range of 0 ... 10 V, resp. 4 ... 20 mA is optional.Adjustment of the upper sequential mark is effected with potentiometer “A”; adjustment of thelower sequential mark is effected with potentiometer “B”. If the upper sequential marking is lowerthan the max. value of 10 V, resp. 20 mA, the upper sequential marking must at first be adjustedwith potentiometer “A” and hereafter only the lower sequential marking with potentiometer “B”.A 180°-turn of the reversing plug will reverse the phase-sequence.The actual value (check-back signal) can be picked off in volts or milliampères optionally.The check-back signal on terminal 58 (negative pole) and on terminal 60 (positive pole) is donein milliampères. The check-back signal on terminal 58 (negative pole) and on terminal 61(positive pole) is done in volts. The check-back signal is equi-directional. The output value isequivalent to the input value, e.g.: input = 4 ... 20 mA output = 4 ... 20 mA, resp. 2 ... 10 V.f

The load impedance with feedback in mA must be 500 (0–500 ).[ � �

In sequential range: e.g.: input = 4 ... 8 V output = 4 ... 8 V, resp. 8 ... 16 mA.f

Compared to the input the tolerance of the check-back signal is max. approx. 200 mV resp.0.4 mA.The check-back signal is not metallically separated from the input.The built-in light-emitting diodes (LED’s) serve for better adjustment of the final points,especially with sequential operation. The LED’s are connected such, that the red LED is lighted,when the actuator is at a stop, meaning that no manipulated variable is generated. The greenLED is lighted, when the actuator is in operation meaning that a manipulated variable isgenerated.

7.1 Mounting and adjustment of the linear actuator with PELObserve safety information (page 4).Observe mounting hints acc. to chapter 2 to 2.3.Observe safety prescriptions for electrical connection and upon taking the hood off acc. tochapter 3. to 3.1.


Mp1 = measuring point 1 = + 15 VMp2 = measuring point 2 = – 5 VMp3 = measuring point 3 = earthMp4 = measuring point 4 = upper sequence voltage e.g. at 0...10 V = 10.1 VMp5 = measuring point 5 = voltage coming from potentiometer sliderMp6 = measuring point 6 = lower sequence voltage e.g. at 0...10 V = 0 V or 4...20 mA = 2 VR5 = input resistance VDC = 10 kOhmR6 = input resistance mA = 499 OhmR7 = incremental control coefficient = window width = 130 Ohm = 160 mVR25 not occupied, value of hysteresis = 18 mV resp. 0.036 mAV1 + V2 = perhaps necessary spark quenching elements for relay contacts

Figure 7.1-1: Electronic positioner

Figure 7.1-2: Dimensions for actuator type M2 with electronic positioner


7.2 Electric connection of the supply lineProceed according to chapter 3.2,connect the actuator as follows:!Connect the safety earth conductor of the supply line (cores green/yellow) to the provided

safety earth terminal!Connect the zero conductor “N” of the supply line to terminal N!Connect the permanent phase L (operating voltage) to terminal 40!Detach terminals 51 and 53 on the electronic board and take out stranded wires violet and

brown from the terminal

Figure 7.2-1: Wiring diagram for M2.1 – M2.3 with electronic positioner(230 V 50 or 60 Hz, 110 V 50 or 60 Hz, 24 V 50 or 60 Hz)

!Switch on permanent voltage!With voltage being put on correctly the magnet [1] will attract,

will engage the clutch [2] and will thus enable theelectric hand-adjustment of the actuator

!Move in driving rod of the actuator [4] by 2 mmby means of the electric hand-adjustment

! Insert valve spindle to limit stopinto the valve

!Set the actuator completelyonto the valve

!Screw the threaded bushing [5]so far onto the valve bar until theflange of the actuator will be flushadjacent on the seat-engagingsurface of the valve [F]

!Fix the flange of the actuatoron the valve with a screw [6]or impact nut

!Lock the threaded bushing [5]on the valve bar by means ofa hexagonal lock nut [7]

Figure 7.2-2: Position of parts in actuator M2


7.3 Test run of the actuatorDANGER !!!The linear actuator without hood may be short-term-operated only during test runrespectively for indispensible adjusting works on electrical options such as p.e.potentiometer, travel switch or electronic positioner.During this activity there exists access to dangerous live, blank, moving and rotatingparts. In case of inappropriate or uncautious execution of the adjusting works there candeath, severe physical injuries or essential material damages be the outcome.Only qualified personnel (see page 4) is allowed to carry out this activity.The operation of the linear actuator without hood is interdicted for a purpose different towhat has been described as mentioned before.

7.4 Adjustment of the travel dependent end position switches and of thepotentiometers in actuators with electronic positioner!Adjustment of end position switch S1 in closing direction “outgoing driving rod” see chapter 4.1!Adjustment of end position switch S2 in opening direction “ingoing driving rod” see chapter 4.2!Adjustment of potentiometers in actuators M2.1 and M2.2 see chapter 4.3!Adjustment of potentiometers in actuator M2.3 see chapter 4.4!Switch actuator dead!Connect stranded wires again; stranded wire violet in terminal 51 and stranded wire brown in

terminal 53 of the electronic board

7.5 Connection of the control lineIn order to – whenever possible – prevent an inducement of the control signal (setpoint) causedby interference pulses, the control signal is to be transmitted to the actuator in a separate linewith shielding tin-plated copper wicker covering.!Remove screwed cable gland or dummy plug from the actuator housing!Screw corresponding screwed cable gland for the shielded control cable into the actuator

housing!Strip the outer sheath of the control cable in a way that the individual cores are sufficiently long

for making the connection on the e-plate!Cut back the shielding wicker covering to about

9–12 mm to the outer sheath!Then slide the union nut, squeezing rubber and inner

cone sleeve of the screwed gland one after the otheracross the stripped end of the control cable

!Turn existent outside shielding wicker covering intothe inner cone sleeve

!Slide outer cone sleeve over the cable end and underthe shielding wicker covering

!Slide the control cable through the bottom screwedgland part into the actuator, until the outer conesleeve reaches limit stop

!Press the squeezing rubber into the bottom screwed Figure 7.5: Screwed gland for

gland part shielded cable!Screw on and tighten the union nut!Strip the inner cover of the control cable by about 1 cm above the screwed cable gland!Strip the individual cores at a distance of about 5 mm from the end!Concerning the stranded cores the end sleeves are to be slid and crimped onto the

stripped-off end!Lay and fasten the leads in the actuator in a way that they are protected from moving or

rotating parts and won't be damaged when taking the hood off or putting it back


7.6 Connection of the control signal!Control voltage 0 (2) ... 10 V DC: negative pole to terminal 57 and positive pole to terminal 56!Control current 0 (4) ... 20 mA: negative pole to terminal 57 and positive pole to terminal 59The input resistance with setpoint value in mA is 499 .�

7.7 Test run of the actuatorDANGER !!!Observe danger hint acc. to chapter 7.3.

!Put control voltage resp. control current onto actuator and verify rating and polarity with arespective measuring instrument

!Put operating voltage onto actuator and test drive the actuator

The actuator has been factory-preset to the control range and positioning travel desired.!Check, whether the respective

end position switches S1 and S2switch off the motor (check directionof rotation);switch S1 [8] for outgoingdriving rod, switch S2 [12]for ingoing driving rod

Figure 7.7: Position of switches S1 and S2 in actuator M2

7.8 Making corrections with trimming potentiometers “A” and “B”(see hereto figure 7-1)!Potentiometer “A” is destined for the upper setpoint marking!Potentiometer “B” is destined for the lower setpoint markingIf the actuator has been driven to end position, the built-in red light-emitting diode “LED” must beilluminated and the built-in green LED must be extinguished, unless the actuator is not to beswitched off via the travel dependent switches S1 and S2.!Adjust potentiometers “A” or “B” on the e-board, if needed, until the red light-emitting diode will

be illuminated and the green LED extinguished

7.9 Reversal(see hereto figure 7-1)If the running direction of the actuator is to be reversed with regard to the setpoint value,!Switch off operating voltage from the actuator!Pull off reversing plug on e-board, turn it by 180° and replug it!Put operating voltage onto actuator again!Make corrections acc. to chapter 7.8, if needed

7.10 After termination of adjusting works and test run effected!Set on hood cautiously, the hood must be evenly adjacent to the housing border!Lay sealing washer over the lug of the thread of the hood fixing bolt!Screw on and tighten cap nutWatch out for tightness!

7.11 Modification of the desired setpoint value (V in mA or vice versa)!Change location of terminal for the supply line for positive pole on the e-plate acc. to chapter 7.6The input resistance with setpoint value in mA is 499 .�


7.12 Adjustment of the signal range of the desired setpoint value (voltage and current range)(taking the previously adjusted 0 ... 20 mA as a basis)

7.12.1 Example: 4 ... 20 mA!Untighten and remove cap nut on the actuator hood!Take off sealing washer!Take off hood!Move actuator by electric hand-adjustment to the corresponding final position, in which the

actuator should be at 4 mA, until the corresponding switch switches!Hold corresponding key pressed down!Trigger the electronics with 4 mA!Turn potentiometer “B” clockwise until red LED will be illuminated and green LED extinguished!Test drive actuator! If necessary, make corrections acc. to chapter 7.8Observe danger hint acc. to chapter 7.3.!Proceed acc. to chapter 7.10

7.12.2 Example: sequence range 6 ... 12 mAAt first the upper value of the sequence range must be adjusted:!Untighten and remove cap nut on the actuator hood!Take off sealing washer!Take off hood!Move actuator by electric hand-adjustment to the corresponding final position, in which the

actuator should be at 12 mA, until the corresponding end position switch switches!Hold corresponding key pressed down!Trigger electronics on terminals 57 (negative pole) and 59 (positive pole) with 12 mA!Turn potentiometer “A” anticlockwise until the red LED will be illuminated and the green LED

extinguishedThen adjust the lower value of the sequence range:!Move actuator to the other end position, in which the actuator should be at 6 mA, until the end

switch switches!Trigger electronics on terminals 57 (negative pole) and 59 (positive pole) with 6 mA!Turn potentiometer “B” clockwise, until the red LED will be illuminated and the green LED be

extinguished!Test drive actuator! If necessary, make corrections acc. to chapter 7.8Observe danger hint acc. to chapter 7.3.!Proceed acc. to chapter 7.10

7.13 FeedbackThe feedback signal!must not be adjusted! is not metallically separated from the inputThe actual value (feedback) is arbitrarily picked off as! voltage DC 0 (2) ... 10 V on terminals 58 (negative pole) and 61 (positive pole)! current DC 0 (4) ... 20 mA on terminals 58 (negative pole) and 60 (positive pole)The feedback is equi-directional, i.e. a rising input signal (setpoint) conditions also a risingfeedback signal.The size of the output signal always conforms to the size of the input signal,! e.g. input = 4 ... 20 mA output = 4 ... 20 mA, resp. 2 ... 10 Vf

! in the sequence range e.g. input = 4 ... 8 V output = 4 ... 8 V, resp. 8 ... 16 mAf

The tolerance of the feedback in comparison to the input is about 200 mV, resp. 0.4 mA.The load impedance with feedback in mA must be 500 (0–500 ).[ � �


8. Maintenance

The gearing and the threading of the driving rod should be relubricated about every three yearswith normal operation of the linear actuator, in case of a higher strain after about 200,000 doublestrokes (required lubricant see chapter 1.4).

For carrying out maintenance works on the linear actuator or final control element and beforetaking the hood off switch off the mains supply. Safeguard the actuator against unintentionalswitch-on. Observe all safety information and prescriptions.

9. Repair

The linear actuator should not be repaired right on the spot. Defective actuators must bereturned to the manufacturer of the actuator together with a disturbance report and withindication of the serial number (see name plate).


Documents

HORA Holter Regelarmaturen - M2.2(Y) - M2.3(Y) · “M2.1 – M2.3” Electric Linear Actuator with Zero Voltage Readjusting Device mm 0.9 kN resp. 2.2 kN Reg.-No.: 244736 QM Operating