
Chapter
5
Troubleshooting
32
for technical support.
Motor short-circuit
Check whether the cables between the servo drive and the motor are
short-circuited or in poor contact.
Disconnect the servo drive from the motor, measure the inter-phase
resistance of U, V, W phases of the motor by using the M mode in the ohm
function of the motor, and check whether the resistance is the same and
above 5 M
Ω
. If yes, connect the servo drive and the motor and perform trial
running again.
If the fault persists, contact the IMM manufacturer.
Fault Code
ERR27
Fault Principle
Timed startup according to business agreement
Fault Cause
Solution
Timed startup
according to business
agreement
Contact the IMM manufacturer.
Fault Code
ERR42, ERR47, ERR48
Fault Principle
Communication fault
Fault Cause
Solution
ERR42
1. Check whether CAN bus cable breaks.
2. Check whether the baud rate of the servo drive is set properly.
3. Check whether all servo drives are in hydraulic control mode.
ERR47
This fault is reported by the master servo drive on normal conditions and is
displayed as ERR47-*, in which * is a number, and indicates that the servo
drive with local address (A2-01) of * reports the fault. After the fault of the
servo drive * is rectified and reset, this fault will be reset simultaneously.
ERR48
This fault is reported by the master servo drive when multiple servo drives
are set to the same local address. Find the duplicated local addresses and
modify them. Set the local addresses of multiple servo drives in the order of
1, 2, 3 ……N and avoid repetitive setting.