12. Maintenance and Checkup
Alarm Code
Name
amplitude
Sinusoidal ENC
frequncy
Z phase open
Under voltage
Over voltage
Main power fail
Causes
Checklist
Troble shooting
Parameter
setting error
Drive error
resolver error
Drive / Motor combination
error
Encoder cable error
Encoder error
Drive error
Main power input voltage
error
running when power
voltage is low
Main power input voltage
error
Check setting valud of encoder
type [0x2001]
Check brand label code of motor
and drive.
Wiring is incorrect and check
Short
Check the main power voltage is
over 3phase 134[Vac]
Check DC link value [0x2605] is
over 190[Vdc] when main power
is accordingly input
Check wiring of main power
supply
Check whether the main power
voltage is below 253[Vac]
Check DC link value [0x2605] is
below 405[V] when main power is
accordingly input
Check setting encoder type.
If alarm continue after servo
on again, Replace drive.
Because drive may have
problem.
If alarm continue after servo
on again, Replace drive.
Because drive may have
problem.
Use motor and drive of same
brand label.
Replace encoder cable.
If alarm continue after servo
on again, Replace drive.
Because drive may have
problem.
If alarm continue after servo
on again, Replace drive.
Because drive may have
problem.
Recheck the power supply.
Use 3 phase as supply
voltage.
Recheck the power supply.
Replace the drive.
When braking resistor is Check operating condition
high
regenerative resistance.
Setting value of
acceleration/ deceleration
Drive error
In case of many time for
acceleration/ deceleration
Main power input voltage
error
check voltage between phase 200-
230[Vac] of L1, L2, L3
Review the regenerative
resistance consider the
operating condition and load.
Set longer acceleration/
deceleration time
If alarm continue after servo
on again, Replace drive.
Because drive may have
problem.
Recheck power supply.
Parameter setting error
momentary power failure
Check setting value arroding to state
of main power [0x2006]
Check setting value [0x2007]
Wire or set parameter as input
power on (possible 3 phase)
Check main power source or
reduce value of [0x2007]
14-4
