5 Troubleshooting
5
- 57 -
Cause
Confirming Methods
Corrective Action
5. Input pulse frequency
is high.
Check whether input pulse frequency is too high if
position reference source is pulse.
Acceleration/deceleration time is 0 or too small.
Reduce position reference
frequency or decrease electronic
gear ratio.
When host computer is used
to output position pulses, set
acceleration/deceleration time in
host computer.
If host computer is not allowed
to set acceleration/deceleration
time, increase parameters H05-04
and H05-06 to smoothen position
reference.
6. Relative to running
condition, H0F-08 (full
closed-loop position
deviation too large
threshold) is too small.
Check whether full closed-loop position deviation
too large threshold (H0F-08) is too small.
Increase the setting of H0F-08.
7. The servo drive/
motor is faulty.
Monitor running curve on the drive debugging
platform of Inovance:
Position reference, position feedback, speed
reference, torque reference
If position reference is not 0, but
position feedback is always 0,
replace servo drive/motor.
Er.B03: Electronic gear ratio setting exceeding limit
Cause
Confirming Methods
Corrective Action
Electronic gear ratio
setting exceeds
preceding limit.
If H05-02 = 0, check the ratios of H05-07/H05-09 and
H05-11/H05-13
If H05-02 > 0, check the ratios of encoder resolution/
H05-02, H05-07/H05-09 and H05-11/H05-13.
The ratios of encoder resolution
/H05-02,
H05-07/H05-09, and H05-11/
H05-13 must be within preceding
limit.
Parameter
modification sequence
is unreasonable.
When modifying electronic gear ration related
parameters H05-02, H05-07/H05-09, and H05-11/
H05-13, modifying sequence is unreasonable, which
results in electronic gear ratio exceeding limit during
calculation of electronic gear ratio.
Reset the fault or re-power on
the system.
Er.B04: Fully closed-loop function parameter setting error
Cause
Confirming Methods
Corrective Action
In full closed-loop mode, position
reference source is internal position
reference but internal encoder
feedback and external encoder
feedback is switched over.
Check whether H0F-00 = 2.
Check whether position reference
source is internal position reference:
multi-position and position change
on fly.
In full closed-loop mode, when
position reference source is internal
position reference, only external
encoder feedback can be used.
That is, H0F-00 can be set to 1
only.
Summary of Contents for IS650P Series
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