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Fault
Overload
LED: flashes red
SSM relay: opened
iPWM out: 85%
LIN: Error 05
Modbus: Error 21
Excessive temperature
motor winding
LED: all LEDs flash ON/OFF
SSM relay: closed
iPWM out: -
LIN: -
Modbus: - -
Excessive temperature
IPM (Intelligent Power
Module)
LED: flashes red
SSM relay: opened
iPWM out: 85%
LIN: Error 15
Modbus: Error 31
Excessive temperature
control module
LED: flashes red
SSM relay: opened
iPWM out: 85%
LIN: Error 14
Modbus: Error 30
Overvoltage VDC
LED: flashes red
SSM relay: open
iPWM out: 85%
LIN: Error 06
Modbus: Error 33
Undervoltage VDC
LED: flashes red
SSM relay: opened
iPWM out: 85%
LIN: Error 07
Modbus: Error 32
Undervoltage mains
voltage
LED: flashes red
SSM relay: opened
iPWM out: 85%
LIN: Error 10
Modbus: Error 4
78
Causes
Pump off.
The speed is lower than the permiss-
ible tolerance.
High friction due to mechanical ageing
of particles in the fluid
Pump off.
The temperature in the motor winding
is too high, or the winding temper-
ature sensor is faulty.
The motor protection automatically
switches the pump off.
Pump off.
Temperature of the IPM is too high.
Pump off.
Temperature of the control module is
too high.
Pump off.
The voltage is too high.
Pump off.
The power supply is too low.
Pump off.
Power supply on mains side too low.
Installation and operating instructions • Wilo-Para MAXO/-G/-R/-Z • Ed.04/2024-11
Remedies
Clean or replace the fluid.
The pump switches on once the nor-
mal state is reached.
Allow fluid temperature to cool down.
Let the ambient temperature to cool
down.
The pump switches on once the nor-
mal state is reached.
Let the ambient temperature to cool
down.
The pump switches on once the nor-
mal state is reached.
Check power supply.
The pump switches on once the nor-
mal state is reached.
Check power supply.
The pump switches on once the nor-
mal state is reached.
Check power supply.
The pump switches on once the nor-
mal state is reached.
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