Polycold Cryochiller Host Commands
Installation and Operation Manual System Operational State Commands
Brooks Automation
214072 Revision B
7-19
ACTIVE_ALARMS Current Active Alarms
Return Value: [A] or [A], [alarm status bits] or [A], [circuit 1 alarm status bits], [circuit 2
alarm status bits]
The alarm name and status.
“alarm name” is the name used to refer to the alarm
“alarm status bits” is a bit field with the following values:
bit 0: 0 = warning, 1 = alarm
bit 1-4: alarm or warning level as an integer.
bit 5: alarm clear state (0 = not cleared, 1 = cleared)
bit 6: alarm acknowledge state (0 = not acknowledged, 1 = acknowl-
edged)
Default Value: N/A
Security Level Get: 1 Set: N/A
Example: “ALARM_STATUS,0,40000,?” returns the alarm status of the cool tem-
perature ramp monitor alarm
Interface RS-232, Ethernet
Purpose: Get the current active alarms and warnings
Parameter(s): [n],?
[n] is
0 = Warnings
1 = Alarms
2 = Both
Return Value [A],[nnnnnnnn], [nnnnnnnn], [nnnnnnnn]
parameter 1: Equipment operation alarms: 32 bit number / bitfield (differ-
ent from parameter 1 from FAULT_STATUS) hex encoded
• bit 0: C1/C2 USER TC FAILED
• bit 1: Not Used
• bit 2: LOW REFRIG TEMP
• bit 3: Not Used
• bit 4: PRESS SENSOR FAULT
• bit 5: EXCESS SUCT PRESS
• bit 6: SYSTEM DATE (Not Supported)
• bit 7: HIGH DISCHRG PRESS
• bit 8: DISCHARGE TEMP
• bit 9: Not Used
• bit 10: VOLT OUT OF RANGE
• bit 11: COOLING WATER
• bit 12: WATER TEMP HIGH
• bit 13: PRESSURE SWITCH
• bit 14: LOW SUCT PRESSURE
• bit 15: THERMAL OVERLOAD
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