Engineer Training Electrical Cabinet (EC) TJ8300 / TJ8500 Electrical Cabinet (EC)

Engineer Training

Electrical Cabinet (EC)

TJ8300 / TJ8500


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TJ8300 / TJ8500General Description

The electrical cabinet is located inside the electronics cabinet.

The electrical cabinet (structure) is comprised of the base and the panel door.

It receives the main power supply line from the machine – 3X230VAC + Natural + GND – (max.) total of 63A (per phase).

The electrical cabinet is responsible for the following functions:

PDU – power distribution to all components in the machine

Operation of drum heating

Operations of pumps (vacuum and evacuation)

Protections (overheat and under speed)

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TJ8300 / TJ8500Structure

Base

Panel

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TJ8300 / TJ8500Inputs

Power and auxiliary inputs are located at the bottom of the Electrical cabinet.

Input of main power line3x230VAC+N+GND 63A Max (per phase)

Input of UPS

Auxiliary outputs

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TJ8300 / TJ8500Power Distribution

Stabilizer and protection from spikes lightning and noise reducer (up to 20DB) Main contactor 63A

CN1

T1-12VAC Transformer for emergency switches

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TJ8300 / TJ8500Power Distribution (Cont.)

S1-Main circuit breaker (4 pole)

S2-Earth leakage current breaker

S5-Drum heating breaker

S3-UPS breaker

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Up to machine 74

CN5 - Vacuum blower

contactor

CN6 - HA fan

contactor

CN7 - Evacuation

blower contactor

OL1 - Vacuum blower

overload relay

(up to 6.3A)

OL2 - Hot air fans

overload relay

(up to 1.6A)

OL3 - Evacuation

blower overload relay

(up to 1.6A)

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From machine 75

CN5 - Vacuum blower

contactor

CN6 - HA fan

contactor

OL1- Vacuum blower

overload relay (up to

6.3A)

OL2 - Hot air fans

overload relay (up to

1.6A)

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PH1 – Phase relay.Green and orange light indicate the right phase order. If the phase order is wrong, the pumps will not work.

Up to machine 74

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S6-Breaker of Supply unit, computer and peripherals.

S7-Transformer Breaker.

S8-Breaker of Auxiliary 1 (J15).

S9-Breaker of Auxiliary 2 (J14).

S11-Output power to J11

S12-output power to J12

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TJ8300 / TJ8500Electrical Cabinet Panel

The panel includes:

Drum heat controller board

Receives the requested temperature from the computer and heats the drum with a combination of IR and hot air fans.

Receives feedback of the real drum temperature measured by the IR sensors.

Controls for two under speed protection(Tahco generator and under speed sensor).

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TJ8300 / TJ8500Electrical Cabinet Panel (Cont.)

Controls for two separate overheat protections

Temperature readings from two IR sensors under the drum are compared to the preset value in two separate voltage relays.

If the potentiometer on the voltage relay is set to 1, the overheat message appears when the relevant IR sensor reads more then 100ºC.

Dryer enable

HA fans and IR controls, control operations of all pumps.

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TJ8300 / TJ8500Door Panel (Cont.)

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TJ8300 / TJ8500Door Panel

Voltage relay I – sets the potentiometer to 1 (max) displays the overheat 1 message at 100ºC .

Voltage relay II – sets the potentiometer to 1 (max) displays the overheat 1 message at 100ºC.

Normally, both units are set to 0.8, which means that the overheat is set to 80ºC.

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TJ8300 / TJ8500 Controller Board (Drum Heat Controller)

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TJ8300 / TJ8500 Controller Board (Drum Heat Controller) – Cont.

CN3-IR heaters contactorCN2-UPS contactor

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F7, F8-IR heaters fuses (50A)

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U3-24VDC Supply unit for the heating controller

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Fuses for lamps and controls

S13-Breaker of IR units

S15-Heat control breaker

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1 – Solid state relay (SSR) unit for IR I heater control

2 – Solid state relay (SSR) unit for IR II heater control

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TJ8300 / TJ8500Indication Lights

L1, L2, L3 – indicates power phases input.

UPS – Indicates UPS power input(external source for computers only).

ON – Lights up after machine initiates(like in the traffic light indicator).

VAC – Indicates when the vacuum pump is working.

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TJ8300 / TJ8500Indication Lights (Cont.)

HA – Indicates when the HA fans are working.

EV - Indicates when the evacuation pump is working.

EM SWITCH – Lights up as long as the emergency switches are not pressed.

MAIN/UPS switch selector – Manually switches between UPS and Main Power.

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TJ8300 / TJ8500Indication Lights (Cont.)

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TJ8300 / TJ8500Panel Door Indication Lights

OV1 – first protection for Over heat(Reading temp’ from first IR sensor)

OV2 – second protection for Over heat(Reading temp’ from second IR sensor)

Tacho speed – first protection for drum under speed from the Tahco generator on the drum motor

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TJ8300 / TJ8500Panel Door Indication Lights (Cont.)

PROX speed – second protection for drum under speed, monitoring the drum movement by the under speed sensor

24VDC, 24VAC – indicates lights of controls

Enable – dryer enabled signal

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TJ8300 / TJ8500Panel Door Indication Lights (Cont.)

HA control indication light

IR control indication light

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TJ8300 / TJ8500 Electrical Cabinet Components

Documents

Engineer Training Electrical Cabinet (EC) TJ8300 / TJ8500 Electrical Cabinet (EC)