Maxsine EP3 AC Series, User Manual

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7.2 The reason and handling of alarm
207
Err24 (Under voltage of control power supply)
Potential cause Check Handle
Control circuit LDO fault Check the power of
control board Replace the servo driver.
Err27 (Phase loss alarm)
Potential cause Check Handle
Phase loss of power supply Check the wiring of
L1, L2,L3 Connect wire correctly
Power supply undervoltage Check supply power
voltage Ensure correct voltage input
Phase loss checking return circuit
error Check optocoupler,
power on again If error still exists, please replace
drive
Err29 (Over-torque alarm)
Potential cause Check Handle
Unexpected big load occurs Check load
condition
Correctly readjust the load.
Parameter P070
、
P071
、
P072
setting is not reasonable
Check the
parameters Correctly readjust parameters.
Err30 (Lost Z signal of encoder)
Potential cause Check Handle
Encoder has problem Check the encoder Z
signal Replace the encoder
Encoder cable and/or connector
has problem Check cable and
connector Replace the cable and connector.
The interface circuit of the servo
driver is at fault Check the control
circuit Replace the servo driver.