Optically Isolated Inputs; Figure 3.18A: Nema Input Connections; Figure 3.18B Panel Input Connections - Advanced Power technologies TTC-1000 Instruction & Operation Manual
Transformer temperature controller
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3.8 Optically Isolated Inputs
Models equipped with inputs contain up to two optically isolated inputs, IN1 and
IN2. These inputs must be wetted from an external power supply between 38 and
160 VDC or 38 to 120VAC. Connections are made through plug-in terminal
blocks on the rear of the case as shown in figures 3.18a & b.. These optically
isolated inputs may be used by the programmable logic to control or supervise
any output. These inputs can also be used to communicate status information
from devices such as the liquid level alarm or sudden pressure over DNP3.0 or
MODBUS. Any input can be programmed to be LEVEL or PULSE active. The
use of shielded cable is recommended.
Probe 1
Probe 2
12
11
10
9
8
7
TB2
TB6
IN 14
IN 13
IN 12
IN 11
CT 8
CT 7
CT 6
TB1
TB5
IN1
IN2
OUT6
Figure 3.18a: NEMA Input Connections
TB7
16 15 14 13 12 11 10
TB6
CT8
CT7
CT6
SHIELD
4
3
2
1
TB4
IN2
IN1
C
T
R
C
T
R
C
T
TB2
O
M
E
O
M
E
O
M
M
P
F
M
P
F
M
P
Figure 3.18b Panel Input Connections
Aux CT
Probe 3
Alarm
4
3
2
1
6
5
4
IN 10
IN 9
IN 8
IN 7
CT 5
CT 4
CT 3
CT 2
OUT5
OUT4
9
8
7
6
5
4
3
2
1
CT5
CT4
CT3
CT2
CT1
N
C
N
N
C
N
N
C
N
N
TB1B
C
O
C
O
C
O
C
OUT6
OUT5
OUT4
OUT3
Rpt
Tx
Rx
A
B
Rx
Tx
R
G
E
N
RS485
F
D
Power
TB3
3
2
1
TB7
IN 6
IN 5
IN 4
IN 3
CT 1
TB1A
OUT3
OUT2
OUT1
ANALOG OUT
BUSY
OK
+
-
+
-
+
-
TB5
A1
A2
A3
GROUND
C
N
N
C
N
N
C
N
TB1A
C
O
O
C
O
OUT1
OUT2
7
6
5
4
3
2
1
TB3
AuxCT
ALARM
POWER
28
V6.70 20131017
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