Interfacing
Polycold Cryochiller
24V DI/DO Remote Interface
Installation and Operation Manual
Brooks Automation
5-18
214072 Revision B
Item
Non Isolated (standard)
Isolated
Power
24 (-25/+17%) V AC/DC 10mA
Port on
Cryochiller
37-pin bulkhead connector
(female pins)
37-pin bulkhead connector
(male pins)
Connector
37 pin (Amp CPC-23) Male pins
Use kit 840104-00
37 pin (Amp CPC-23) Female pins
Use kit 840105-00
Input
Connections
Customer-supplied external switch
closes and returns the 24V AC
(10mA) provided by the Polycold
Cryochiller when active.
Customer-supplied 24(-25/+17%)V
AC/DC (10mA) power must be applied
to the input pin to activate internal opto
isolator when active.
Output
Connections
24VAC (10MA) output from Polycold
Cryochiller when active.
1.2 A maximum total output.
Customer must supply external relay
or indicator to detect the output.
Internal relay contacts in the Polycold
Cryochiller close when active.
Contact rating is 10A
Customer must supply 24 V AC/DC
power which is returned by the output
relay contacts when output is active.
