Wilo DD-I, Installation And Operating Instructions Manual

Page: 162 / 196

en Faults, causes and remedies
162 WILO SE 2020-12
Code Type Fault Cause Remedy
3004
A/B Temp. Sensor 3 Trip Winding temperature limit reached Check motor for overload.
Check motor cooling.
Check temperature limit values in Digital Data In-
terface and correct if necessary.
3005
A/B Temp. Sensor 4 Trip Bearing temperature limit value
reached For dry well installation: Check ambient temper-
ature, keep to maximum value.
Check temperature limit values in Digital Data In-
terface and correct if necessary.
3006
A/B Temp. Sensor 5 Trip Bearing temperature limit value
reached For dry well installation: Check ambient temper-
ature, keep to maximum value.
Check temperature limit values in Digital Data In-
terface and correct if necessary.
3007
A/B Motor Overload Torque limit reached If the system exceeds the motor's torque limit dur-
ing the acceleration ramp, extend the time for the
acceleration ramp.
If the system exceeds the generator's torque limit
during the brake ramp, extend the time for the
brake ramp.
If the torque limit is reached during operation, in-
crease the torque limit. Make sure the system can
be operated with a higher torque, if necessary, con-
tact customer service.
Excessive motor current consumption, check oper-
ating conditions.
3007
A/B Motor Overload Excess current Disconnect the motor from the mains connection
and turn the shaft by hand. Contact customer ser-
vice if it is not possible to turn the shaft by hand.
Check the motor power/frequency converter con-
figuration. Contact customer service if the motor
power is too high.
Check parameters 1-20 to 1-25 in the frequency
converter for correct motor data and adapt if ne-
cessary.
3008
A/B Motor Overtemp. Thermal motor monitoring has
triggered. Motor overheated, check cooling and operating
conditions.
Check motor for mechanical overload.
Check thermal motor monitoring connection (fre-
quency converter: terminal 33 and terminal 50
(+10 VDC).
Check parameters 1-93 "Thermistor Source" in the
frequency converter if a thermal switch or thermis-
tor is used: Value must correspond to sensor wiring.
4000
C High Water Detected Tank fill level has reached a critical
level. Check installation (e.g. inlet, outlet, level settings).
Check digital input settings.
4001
C Leakage Input Warning Leakage detected Check the external electrode (optional) function.
Change the oil in the sealing chamber.
Check digital input settings.
4002
C Temp. Sensor 1 Fault Sensor faulty, measured value out-
side measurement range. Contact customer service.
4003
C Temp. Sensor 2 Fault Sensor faulty, measured value out-
side measurement range. Contact customer service.
4004
C Temp. Sensor 3 Fault Sensor faulty, measured value out-
side measurement range. Contact customer service.
4005
C Temp. Sensor 4 Fault Sensor faulty, measured value out-
side measurement range. Contact customer service.