Specifications
Start (Pin 15)
When Start is enabled, the compressor will enter Startup mode then Running mode. If there is an
off command coming from any input; Compressor OFF Button, Screen OFF Button, System I/O
Stop, System I/O Interlock, Modbus or SMDP stop command, or an error, the system will not start.
Outputs
Running (Pins 1-2)
When the system is in Running mode, and operating properly, the Running relay between pins 1
and 2 will closed.
High Pressure (Pins 3-4)
If the discharge pressure of the compressor package exceeds the high pressure limit the High-
Pressure relay between pins 3 and 4 will close.
High Temperature (Pins 5-6)
If the helium gas of the compressor package exceeds the high temperature limit the High
temperature relay between pins 5 and 6 will close.
Faultless (Pins 7-8)
If the system is powered on and in a running or idle state and the system is experiencing no
warnings or errors the relay between pins 7 and 8 will close.
Voltage supply
Pin 11 is +24 Vdc source referenced to the ground, pin 10. The maximum current available is 40
mA. This supply can be used to power the inputs. The supply may also be used for other purposes
provided the current limit is not exceeded.
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