Description of Fault Codes
‑31‑
The servo drive detects the motor model defined by H00.00 during initialization
upon power‑on. If the motor model does not exist, E120.1 occurs.
Cause
Troubleshooting
Solution
The motor model defined by
H00.00 is abnormal
Check whether the value of
H00.00 matches the used
motor.
Rectify the value of H00.00.
● E120.2: Unknown drive model
Description:
The servo drive detects the servo drive model defined by H01.10 during
initialization upon power‑on. If the servo drive model does not exist, E120.2
occurs.
Cause
Troubleshooting
Solution
H01.10 is incorrect
Check the value of H01.10.
Disable servo drive model
auto detection and set H01‑
10 to a proper value
manually.
● E120.5: Motor and drive current mismatch
Description:
The rated output of the servo drive is far higher than the rated current of the
motor. You must use a servo drive of lower rated output or a motor with higher
rated current.
Cause
Troubleshooting
Solution
The internal scale value is
abnormal.
Check whether the servo
drive model is correct. If the
set current sampling
coefficient is too large,
calculation overflow will
occur.
Replace the servo drive.
● E120.6: FPGA and motor model mismatch
Description:
■ The motor model is set improperly, causing mismatch and malfunction of the
servo drive.
■ The motor model is set properly, but the motor encoder is not supported by
the servo drive.
Cause
Troubleshooting
Solution
FPGA software version and
H00.00 mismatch
Check whether the FPGA
software version (H01.01)
supports the motor model
set by H00.00.
Update the FPGA software to
support the motor model or
replace the motor.
● E120.7: Model check error
Description:
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