GFK-0356Q
Chapter 8 Option Modules
8-37
8
IC693TCM302/303 Temperature Control Modules (TCM)
The Temperature Control Modules (TCM) provides temperature control for up to eight channels.
The two TCM models are identical except for temperature range and resolution ratings (see
comparison table). They have the following features:
Can operate in either open loop or closed loop mode
Each channel has a thermocouple input and a relay output
RTD input
12V common mode voltage capability
Open and reverse thermocouple detection and reporting
Out of tolerance temperature detection and reporting
4
8
1
5
P R F S
R-
S-
S+
R
1+
1-
2+
2-
3+
3-
4+
4-
5+
5-
6+
6-
7+
7-
8+
8-
1+
1-
2+
2-
3+
3-
4+
4-
5+
5-
6+
6-
7+
7-
8+
8-
P+
P-
G
TCM
RTD
+ 1/P
PWR
+ 0/P
Output Connector
Input Connector
Output Status LEDs (1 – 8)
Power, Run, Fault,
and Short LEDs
Front Cover
Location of Fuse
(Behind Front Cover)
RTD Input
External Power Input
for Output Relays
Figure 8-22. IC693TCM302/303 Temperature Control Module (TCM)
Connections
Field devices (thermocouples, relays), RTD and external power for output relays are connected to
the module using a pair of plug-in connectors which are supplied with the module. These
connectors have captive screw terminals for ease of connecting field wiring. The signal name for
each terminal is labeled on the module’s front cover next to each connector, as shown in the
drawing above. For example, Channel 8 connections are labeled 8+ and 8- on each connector.
Input connections are on the left-hand connector and output connections are on the right-hand
connector.
