Inovance MD800 Series - Page 140

Commissioning and Trial Run
‑139‑
Fault Name Panel
Display
Possible Cause Solution Fault Type
Abnormal motor
auto‑tuning result
E22.00 The auto‑tuned stator
resistance exceeds the
permissible range.
The rated motor voltage and current are set
incorrectly. Set F1‑02 (Rated motor voltage)
and F1‑03 (Rated motor current) correctly
according to the motor nameplate.
Check that auto‑tuning is performed after
the motor stops.
Axis fault
E22.01 The auto‑tuned
asynchronous motor
rotor resistance exceeds
the permissible range.
Axis fault
E22.02 The auto‑tuned
asynchronous motor no‑
load current and mutual
inductance exceed the
permissible range. If
such a fault is reported,
the AC drive computes
the mutual inductance
and no‑load current
based on known motor
parameters. The
computed values may
be different from
optimal values.
Set the motor parameters in group F1
correctly according to the motor nameplate.
Before performing auto‑tuning, confirm that
the motor is under no load.
Axis fault
E22.03 The auto‑tuned
synchronous motor
back EMF exceeds the
permissible range.
Confirm that the rated motor voltage (F1‑02)
is set according to the motor nameplate.
Before performing auto‑tuning, confirm that
the motor is under no load.
Axis fault
Short circuit to
ground
E23.00 The motor is short‑
circuited to the ground.
Check the motor cables and motor. Axis fault
Power supply unit
fault
E25.00 The power supply unit is
faulty.
Eliminate the power supply unit faults, such
as input phase loss and overtemperature.
Check the terminal configuration of the
power supply unit. If any one of the
following functions is selected, a fault is
reported when there is no feedback signal:
1: Run enable
2: Incoming circuit breaker feedback
3: Auxiliary circuit breaker feedback
4: Residual current device feedback
If any one of the following functions is
selected, a fault is reported when the
terminal is active.
6: Drive unit running forbidden
7: Drive unit coast‑to‑stop
8: Drive unit stops according to the preset
mode
Axis fault
Accumulative running
time reached
E26.00 The accumulative
running time reaches
the set value.
Clear the record through parameter
initialization.
Axis fault