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CHAPTER 7
DIAGNOSTICSAND TROUBLESHOOTING
This chapter assists the user to identify and correct possible faults
that can occur during the CFW-10 operation. Also instructions about
required periodical inspections and cleaning procedures are also
provided.
When a fault is detected, the inverter is disabled and the fault code is
displayed on the readout in EXX form, where XX is the actual fault
code.
To restart the inverter after a fault has occurred, the inverter must be
reset. The reset can be made as follows:
disconnect and reapply the AC power (power-on reset);
press key (manual reset);
automatic reset through P206 (auto-reset);
via digital input: DI1 to DI4 (P263 to P266 = 21).
The table below defines each fault code, explains how to reset the
fault and shows the possible causes for each fault code.
7.1 FAULTS AND
POSSIBLE
CAUSES
FAULT RESET
(1)
POSSIBLE CAUSES
E00 Power-on Short-circuit between two motor phases.
Output Manual (key ) If this fauklt occurs during power-up, there may be short-
Overcurrent Auto-Reset circuit between ground and one of more output phases.
(between phases) DI Inertia of the load too high, or acceleration ramp too short.
P169 set too high.
Undue set of P136 and/or P137.
IGBT transistor module is short-circuited.
E01 Power supply voltage too high, generating in the DC link
DC Link a voltage higher than the allowed value:
Overvoltage Ud > 410 V - Models 200-240 V
Ud > 460 V - Models 110-127 V
Load inertia too high and acceleration ramp is too short
Setting of P151 too high.
E02 Power supply voltage too low, causing a DC link
DC Link voltage higher than the allowed value (read the value
Undervoltage at Parameter P004):
(Ud) Ud < 200 V - Modelos 200-240 V
Ud < 250 V - Modelos 110-127 V
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