Edwards TCU 40/80

4.6 Rear panel
Figure 5 shows the rear panel. Table 7 identifies the controls and indicators on the rear panel.
D G
t
Fj
cocuurr iml
p
n
n
pi
n
p!
=
H
t90/t0* VAC » *M
•0/W Hi *0A
Figure 5 - Electrical rear panel
Table 7 ■
Label
J72J3
CB7 24 VAC
CB8 24 VDC
J72J2
CB4 reservoir heater
CB3 circulation pump
CB2 compressor
CB1 main power
normal/overfill
low/fault
200/208 VAC 3 PH
50/60 Hz 30A
CB5-XFMR
CB6-PSU
J72J1
■ Description of rear panel components and indicators
Description
Five pin connector for remote RTD interface. See Figure 15 on page 56 for
pinouts.
1 -pole, 2 Amp circuit breaker. Isolates the 24 VAC transformer. Normally on
(in).
l-pole, 2 Amp circuit breaker. Isolates the 24 VDC power supply output.
Normally on (in).
Nine pin connector for remote EMERGENCY OFF, start-stop operation, and
remote setpoint operation enable. See Figure 15 on page 56 for pinouts.
3-pole, 10 Amp circuit breaker. Normally on (up).
3-pole, 6 Amp circuit breaker. Normally on (up).
3-pole, 16 Amp circuit breaker. Normally on (up).
3-pole, 25 Amp circuit breaker. Normally on (up).
Normal, LED Green
Overfilled, LED Amber
Low, LED Amber
Fault, LED Red
Mains input power connector.
2-pole, 0.5 Amp circuit breaker. Isolates the equipment transformer.
2-poIe, 0.3 Amp circuit breaker. Isolates the power supply.
37 pin D-subminiature connector, for setpoint value signal, process value
signal, and remote fail and warning signals.
See Figure 15 on page 56 for pinouts.
TCU 40/80 Temperature Control Unit
13