Faults And Possible Causes; Diagnostics And Troubleshooting - WEG CFW-09 User Manual

7.1 FAULTS AND POSSIBLE
CAUSES
FAULT
E00
Output
E01
Overvoltage (Ud)
E02
Undervoltage (Ud)
228

DIAGNOSTICS AND TROUBLESHOOTING

This chapter assists the user to identify and correct possible faults that
can occur during the CFW-09 operation. Guidance on Preventive
Maintenance is also provided.
When a fault is detected, the inverter is disabled and the Fault Code is
displayed on the readout in the EXX form, where XX is the actual Fault
Code. (ie. E01).
To restart the inverter after a fault has occurred, the inverter must be reset.
The reset can be made as follows:
Disconnecting and reapplying AC power (power-on reset).
By pressing the key
Automatic reset through P206 (auto-reset).
By digital input: DIx = 12 (P265 to P270).
By Serial interface.
By Fieldbus interface.
The table below defines each Fault Code, explains how to reset the fault
and shows the possible causes for each Fault Code.
RESET
Power-on
Manual reset (Key )
Overcurrent Auto-reset
DIx (Digital Input)
Serial
Fieldbus
Table 7.1 - Faults and possible causes
(manual reset).
POSSIBLE CAUSES
Short-circuit between two motor phases
Short-circuit between braking resistor cables
When the output current reaches 2 x P295, caused by: very high
load inertia, acceleration ramp too fast or incorrect regulation and/
or configuration parameters
Transistor module shorted
P169 to P172 set too high
Power Supply voltage too high, check Ud in P004:
220-230 V Models - Ud > 400 V
380-480 V Models - Ud > 800 V
500-600 V and 500-690 V Models with power supply between
500 V and 600 V - Ud > 1000 V
500-690 V models with power supply between 660 V and 690 V
and 660-690 V models - Ud > 1200 V
Load inertia too high or deceleration ramp too short
P151 or P153 set too high
Power Supply voltage too low, DC Link check Ud in P004:
220-230 V power supply - Ud < 223 V
380 V power supply - Ud < 385 V
400-415 V power supply - Ud < 405 V
440-460 V power supply - Ud < 446 V
480 V power supply - Ud < 487 V
500-525 V power supply - Ud < 532 V
550-575 V power supply - Ud < 582 V
600 V power supply - Ud < 608 V
660-690 V power supply - Ud < 699 V
Phase loss at the input
Auxiliary circuit fuse blown (only valid for 105 A and 130 A/220-230 V,
86 A to 600 A/380-480 V and 44 A to 79 A/500-600 V refer to item 3.2.3)
Pre-charge contactor defective
P296 set to a voltage higher than the power supply voltage
7
CHAPTER