Description of Fault Codes
‑87‑
Cause
Confirming Method
Solution
6. The value of H0F.08 is
insufficient for the operating
conditions.
Check the value of 6065h.
Increase the setpoint of
6065h.
7. The servo drive/motor is
faulty.
Monitor the operating
waveforms using the
oscilloscope function in the
software tool: position
reference, position
feedback, speed reference,
torque reference
If the position reference is
not 0 but the position
feedback is always 0, replace
the servo drive or motor.
● EB03.0: Electronic gear ratio beyond the limit ‑ H05.02
Cause:
The electronic gear ratio exceeds the limit: (0.001–4000 x Encoder resolution/
10000).
Cause
Confirming Method
Solution
The electronic gear ratio
converted by converted
exceeds the maximum gear
ratio or is less than the
minimum gear ratio.
Check if the electronic gear
ratio is within the range of
0.001–4000 × Encoder
resolution/10000.
Change the value of H05.02.
● EB03.1: Electronic gear ratio beyond the limit ‑ Electronic gear ratio 1
Cause:
The electronic gear ratio exceeds the limit: (0.001–4000 × Encoder resolution/
10000).
Cause
Confirming Method
Solution
The group 1 electronic gear
ratio exceeds the maximum
gear ratio or is less than the
minimum gear ratio.
Check if the electronic gear
ratio is within the range of
0.001–4000 × Encoder
resolution/10000.
Change the values of
H05.07/H05.09.
● EB03.2: Electronic gear ratio beyond the limit ‑ Electronic gear ratio 2
Cause:
The group 2 electronic gear ratio exceeds the limit: (0.001–4000 × Encoder
resolution/10000).
Cause
Confirming Method
Solution
The group 2 electronic gear
ratio exceeds the maximum
gear ratio or is less than the
minimum gear ratio.
Check if the group 2
electronic gear ratio is
within the range of
0.001–4000 × Encoder
resolution/10000.
Change the values of
H05.11/H05.13.
● EE08.0: Synchronization (SYNC) signal loss