Megmeet M5-N Series User Manual

Chapter 9 Troubleshooting
160
Fault code
Fault type
Fault cause
Confirming method
Solutions
Er.025
Inverter module
temperature
sampling
disconnection
protection
The temperature
sampling circuit is
abnormal.
Seek for service support
The temperature sensor
or signal cable is
abnormal.
Seek for service support
Er.027
Servo motor
overspeed
The initial angle of the
encoder is wrong
See P01.22 to check and
confirm the initial angle of
the encoder
Retune the encoder angle
The actual speed of the
servo motor exceeds the
overspeed threshold.
Confirm whether the
overspeed threshold is
appropriate (the
overspeed threshold is
set by P10.12, if P10.12
is equal to 0, the
overspeed threshold is
1.2 times the maximum
motor speed; if P10.12 is
not equal to 0, the
overspeed threshold is
P10.12 and 1.2 times the
maximum speed of the
motor, whichever is
smaller).
Set the correct overspeed
threshold.
The UVW phase
sequence is incorrect.
Check whether the UVW
phase sequence on the
servo drive side is
consistent with that on
the motor side.
Connect the UVW cables according
to the correct
phase sequence.
Input reference is higher
than the overspeed level.
Confirm the input
reference
Reduce the input reference, or
adjust the gain.
The motor speed
overshoots.
Confirm the motor speed
waveform
Reduce the controller gain, adjust
the servo gain, or adjust the
operating conditions.
The servo drive is faulty.
Confirm whether the fault
remains after the drive is
powered off and powered
on again
Replace the servo drive.

Megmeet M5-N Series Specifications

General

Brand	Megmeet
Model	M5-N Series
Category	Servo Drives
Language	English