Faults And Possible Causes - Eliwell EWCFW-08 User Manual

6.1 FAULTS AND
POSSIBLE CAUSES
FAULT
E00 Power-on
Output Manual (key
overcurrent Auto-reset
(between phases DI
or between phase
and ground)
E01
DC link
overvoltage
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DIAGNOSTICSAND TROUBLESHOOTING
This chapter assists the user to identify and correct possible
faults that can occur during the CFW-08 operation. Instructions
about required periodical inspections and cleaning
procedures are also provided.
When a fault is detected, excepting the faults related to the
serial communication,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 reseted. The reset can be made as follows:
Disconnecting and reapplying the AC power (power-on
reset).
By pressing the
Automatic reset through P206 (auto-reset).
Via digital input: DI3 (P265 = 10), DI4 (P266 = 10),
DI5 (P267 = 10) or DI6 (P268 = 10).
The table 6.1 defines each fault code, explains how to reset
the fault and shows the possible causes for each fault code.
NOTE!
The fault E22, E24, E25, E26, E27 and E28 are related to the
serial communication.
RESET (1)
)
Table 6.1 - Errors, possible causes and reset ways
key (manual reset).
POSSIBLE CAUSES
Short-circuit between two motor phases
Short-circuit to the ground at one or more output phases
Motor cable capacitance to ground too high, causing peak
current at the output (refer to the note on next page)
Inertia of the load too high, or acceleration ramp too short
P169 set too high
Undue set of P136 and/or P137, when in V/F control
(P202 = 0 or 1)
Undue set of P178 and/or P409 when in vector control
(P202 = 2)
IGBT transistor module is short-circuited
Power supply voltage too high, causing a DC link voltage
higher than the allowed value
Ud > 410 V - 200-240 V models
Ud > 820 V - 380- 480 V models
Load inertia too high or deceleration ramp too short
Setting of P151 too high
Load inertia too high and acceleration ramp too short
(vector control - P202 = 2)
CHAPTER 6