Cryo-con Model 24C Appendix H: Rear Panel Connections
Control Loop #1 Connections
Rear panel Primary Heater Output (Loop #1) connections are made using a three-pin
banana-plug on the rear panel.
Pin Function
Hi
Heater Output High
Lo
Heater Output Low
EGND
Earth-Ground
Table 40: Loop 1 Connections
Caution: The Model 24C has an automatic control-on-power-up
feature. If enabled, the controller will automatically begin controlling
temperature whenever AC power is applied. For a complete
description of this function, please see the Auto-Ctl function in the
System Functions menu section.
Control Loop #2 and Relay Connections
Connection to the Loop #2 Output is made on the rear panel using the 10-pin
detachable terminal block provided.
Pin Function
1 Loop #2 Heater Output High
2 Loop #2 Heater Output Low
3 Relay #1 N.O.
4 Relay #1 Common.
5 Relay #2 N.O.
6 Relay #2 Common.
7 Loop #3 output High
8 Loop #3 output Low
9 Loop #4 output High
10 Loop #4 output Low
Table 41: Loop #2 and Digital Output Connections
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