ETC CEM3 v1.5.1 - Manual (Page 53)

A
Error Messages 47
Appendix A
Error Messages
The table below lists all of the possible error/status messages that may be listed on the
CEM3 display followed by the probably cause and any possible corrective action to remedy
the error.
If you have any problems resolving errors, or do not feel comfortable performing them,
contact ETC Technical Services (see Help from ETC Technical Services, page 3 ).
W A R N I N G : To avoid the possibility of electric shock, power must be turned OFF before
removing dimmer or control modules. Prior to any action that involves
removing any module, de-energize main feed to dimmer rack and follow
appropriate Lockout/Tagout procedures as described in NFPA Standard
70E. It is important to note that electrical equipment such as dimmer racks
can present an arc flash safety hazard if improperly serviced. This is due to
available large short circuit currents on the feeders of the equipment. Any
work on energized equipment must comply with OSHA Electrical Safe
Working Practices.
Phase voltages inside the rack can be deadly, therefore only qualified
technicians should be allowed to remove modules and expose the inside of
the dimmer rack.
Message Cause Possible Corrective Action
Ambient Temp High
The temperature detected at the CEM3 has
exceeded the limit set under the “Temp High
Warn” option in [Setup]->Rack Decrease ambient temperature, or adjust
temperature warning level. Ensure that fan is
functioning properly.
CPU Temp Low
The temperature detected at the CEM3 is
below 0C (32F)
Increase room temperature
DMX Error Port A The DMX signal on port A is corrupt or invalid Check DMX wiring and termination
DMX Error Port B The DMX signal on port B is corrupt or invalid Check DMX wiring and termination
No DMX Port A No DMX signal is detected on port A
Check DMX wiring, termination or transceiver
chip
No DMX Port B No DMX signal is detected on port B
Check DMX wiring, termination or transceiver
chip
Frequency Error
The power frequency is out the supported
range of 47-63Hz Check the incoming power supply to the rack.
Contact a qualified electrician.
Phase A, B, or C
Error The power on the indicated phase could not be
interpreted due to noise or interference Check the incoming power supply to the rack.
Contact a qualified electrician.
Phase A, B, or C Off No power is detected on the indicated phase.
Check the incoming power supply to the rack.
Contact a qualified electrician.
Temp Sensor Stuck
The temperature sensor is giving an invalid
reading
Replace or service CEM3
Zero Cross Error
The dimming engine is unable to detect the
power zero cross correctly Check the incoming power supply/Service or
replace CEM3. Power cycle the rack.
Phase A, B, or C
Volts High The power on the indicated phase is above the
volts high warning level (in [Setup]->Rack) Check the incoming power supply to the rack.
Contact a qualified electrician.
Phase A, B, or C
Volts Low The voltage on the indicated phase is below
the minimum required value for the CEM3 Check the incoming power supply to the rack.
Contact a qualified electrician.
Phase A, B, or C
Overvolts The voltage on the indicated phase is above
the maximum value for the CEM3 Check the incoming power supply to the rack.
Contact a qualified electrician.
Rack Memory Error
The CEM3 is unable to communicate with the
memory chip on the backplane Check the CEM3 is seated correctly; Replace
backplane