Wilo DD-I, Installation And Operating Instructions Manual

Page: 165 / 196

Faults, causes and remedies en
Installation and operating instructions Wilo DD-I 165
Code Type Fault Cause Remedy
4025
C FC Line Warning Mains connection: excessive phase
asymmetry Have the electrical connection at the frequency
converter checked by a qualified electrician.
Have the electrical connection at the motor
checked by a qualified electrician.
4025
C FC Line Warning Motor connection: one phase is
missing Have the electrical connection at the frequency
converter checked by a qualified electrician.
Have the electrical connection at the motor
checked by a qualified electrician.
4026
C FC DC Circuit Warning Overvoltage Extend ramp time for brake ramp.
4026
C FC DC Circuit Warning Undervoltage Have the electrical connection at the frequency
converter checked by a qualified electrician.
Check the pre-charge circuit.
4027
C FC Supply Warning No supply voltage at frequency
converter Have the electrical connection at the frequency
converter checked by a qualified electrician.
4027
C FC Supply Warning External 24 VDC supply overloaded Have the electrical connection at the frequency
converter checked by a qualified electrician.
4027
C FC Supply Warning 1.8 VDC supply of the control card
outside tolerance range. Have the electrical connection at the frequency
converter checked by a qualified electrician.
4028
C FC Communication
Warning Control word timeout Check Ethernet connection.
Increase parameter 8-03 "Control Timeout Time" in
frequency converter.
Check communication device function.
Check if wiring is EMC-compliant.
4029
C General FC Warning "Terminal 50" frequency converter:
Voltage <10 V Remove cable at "terminal 50":
- If the frequency converter no longer shows the
warning, there is a problem with the customer's
wiring.
- If the frequency converter continues to show the
warning, replace the control card.
4029
C General FC Warning No motor connected to the fre-
quency converter output. Connect motor.
4029
C General FC Warning Motor overload Motor overheated, check cooling and operating
conditions.
Check motor for mechanical overload.
4029
C General FC Warning Speed limit reached. Check operating conditions.
4029
C General FC Warning Voltage limit reached. Check operating conditions.
4029
C General FC Warning Temperature of the frequency con-
verter too cold for operation. Check temperature sensor in frequency converter.
Check sensor cable between IGBT and Gate actu-
ation card.
4030
C EXIO Communication
Down Communication with I/O module
failed. Check the I/O module settings at the Digital Data
Interface.
Check the settings in the I/O module.
Check Ethernet connection.
4031
C FC Communication
Down Communication with frequency
converter failed. Check the frequency converter settings at the Di-
gital Data Interface.
Check settings in the frequency converter.
Check Ethernet connection.
4034
C Leakage Detected 1 Leakage detected in leakage cham-
ber. Drain leakage chamber.
4035
C Leakage Detected 2 Leakage detected in sealing cham-
ber. Change the oil in the sealing chamber.