CFM CMX-10-34 Manuel Pour L'installation page 14

Alarm codes/LED status/Troubleshooting
LED BLINKS
ALARM 1 ALARM 2
(single blink
VALUE VALUE
approx. duration)
1 Blink/2sec
0 0
1 Blink/s
1 0
(0.5s)
2 Blink/s
2 0
(0.25s)
3 Blink/s
3 0
(0.17s)
5 Blink/s
4 1
(0.1s)
4 32 5 Blink/s
4 33 5 Blink/s
4 34 5 Blink/s
4 Blink/s
4 49
(0.13s)
4 50 4 Blink/s
4 51 4 Blink/s
6 Blink/s
4 113
(0.08s)
7 Blink/s
4 114
(0.07s)
4 115 no Blink
For additional information on HVLS ModBus control, contact the manufacturer/technical support.
ALARM DESCRIPTION
POSSIBLE CAUSE
No error
(1s)
Memory error – motor parameters lost
Short circuit – electronics power
module damaged
Motor synchronization lost – wrong motor
parameters or electronics damaged
Supply voltage out of range 135Vac÷550Vac
(DC bus voltage 190÷780V) only with motor
still - not running
Supply voltage above 565Vac (DC bus
voltage over 800V) during motor running
(instantaneous value)
Supply voltage below 107Vac (DC bus
voltage below 150V) during motor running
(instantaneous value)
"Restart on the fly" failed
U phase voltage missing/disconnected
(or wrong motor parameters)
V phase voltage missing/disconnected
(or wrong motor parameters)
W phase voltage missing/disconnected
(or wrong motor parameters)
Electronics temperature over 85°C
Motor windings temperature over 125°C
Short circuit on Pt100 motor temperature
Board damaged – Contact manufacturer/technical support
resistance), contact manufacturer/technical support.
If motor windings damaged (open/short circuit), replace
The drive couldn't catch the impeller – power cycle/retry
Check if operating temperature is above rated maximum
Check mechanical load for anomalies (e.g. difficult turning)
Check if operating temperature is above rated maximum
Check mechanical load for anomalies (e.g. difficult turning)
Check temperature probe wiring – detects temperature
probe
14
TROUBLESHOOTING
-
Contact manufacturer/technical support
Check motor windings.
If motor windings OK (all 3 windings have same
motor
Check power supply voltage / check
power supply wiring
Check power supply voltage / check
power supply wiring
Check power supply voltage / check
power supply wiring
Check power supply/wiring. If wiring OK, contact
manufacturer/technical support
Check power supply/wiring. If wiring OK, contact
manufacturer/technical support
Check power supply/wiring. If wiring OK, contact
manufacturer/technical support
operating temperature.
operating temperature.
probe manumission