Polycold Cryochiller Troubleshooting
Installation and Operation Manual HMI and Observed Errors
Brooks Automation
214072 Revision B
10-3
HMI and Observed Errors
Power Troubleshooting
Troubleshooting power requires that CB1 and CB2 are turned on.
Communication Troubleshooting
Problem / HMI Display Possible Cause Corrective Action
POWER FAILURE
NO RECOMMENDATION
Fault LED is Amber
Control voltage is outside of
acceptable limits.
Check the transformer tap set-
tings and ensure they are cor-
rect for your supply voltage
Check supply voltage for devia-
tions beyond the allowable volt-
age range for this tap setting.
(No HMI message)
No LED indicators
CB1 or CB2 trip, cannot reset.
Faulty component in the power
or control circuit.
Contact authorized service
(No HMI message)
No LED indicators
CB1 occasionally trips
Power consumption too close to
CB1 maximum rated value.
Refer to Appendix C: CB2
Excepted Wiring on page 12-5
Have a qualified electrician
rewire CB2 to Excepted Wiring
(No HMI message)
No LED indicators
System does not boot up.
CB1 stays ON
No input power Check power source fuses, cir-
cuit breakers, and wiring
Contact authorized service to
repair as needed
(No HMI message)
Fault LED not lit
System boots up
Compressor will not turn on
Motor on/off switch fault Contact authorized service to
check the switch and replace if
required.
Problem / HMI Display Possible Cause Corrective Action
System does not communi-
cate on RS232, Ethernet, Pro-
fibus, or DeviceNet
System electronics is “confused” Power cycle the system.
Contact authorized Service
To Next Page
Loading...
