Brooks Polycold MaxCool 2500L - Ext_Vac_Contact; External Vacuum Device Contact Closure Monitor

Polycold Cryochiller Host Commands
Installation and Operation Manual Circuit Configuration Commands
Brooks Automation
214072 Revision B
7-33
EXT_VAC_CONTACT External Vacuum Device Contact Closure Monitor
Parameter(s) - Relay Logic: Relay will close when either above or below Setpoint value
0: = Close_Above
1: = Close_Below
- Setpoint: Setpoint of selected sensor to initiate relay logic
- Deadband: deadband value from setpoint to open relay
Return Value: [A] or [A][nn],[n],[nnn.n],[nnn.n]
Data Type: Integer
Default Value: 0,0,0.0,0.0
Min: Setpoint Type: 0
Relay Logic: 0
Setpoint: -200
Deadband: 0
Max: Setpoint Type: 21
Relay Logic
Setpoint: -200
Deadband: 600
Units:
Security Level: Get: 1 Set: 3
Example: “SETPOINT_RELAY,1,?” Get the external vacuum device set point for Relay 1
“SETPOINT_RELAY,2,3,1,-30,5” Set the external relay set point for Relay 2,
monitor sensor Circuit1_CoilInTemp, close relay below -30c, open relay at -25c
(-30 setpoint plus the 5 degree deadband)
Interface RS-232, Ethernet
Purpose: Get/set the enable/disable state for using the gauge relay input to
change the mode of the circuit.
Monitor Data: External vacuum contact
Parameter(s): [n],?
or [n],[n]
[n] is circuit number (1 or 2) or * for all circuits
[n] is the enable state of the external vacuum contact
0 = Disabled
1 = Enabled
Return Value: [A] or [A][n]
Data Type: Integer
Default Value: 0
Min: 0 Max: 1
Units:
Security Level Get: 1 Set: 3