Inovance IS620P Series - Page 113

Chapter 6 Troubleshooting IS620P User Manual
- 112 -
During
Startup
Fault
Phenomenon
Cause Conrming Method
Input the
position
reference.
The servo
motor rotates
in the reverse
direction.
The input
reference pulse
counter (H0B-
13) is negative.
•
When H05-00 = 0 (pulse reference is the main
position reference source), check whether the
setting of H05-15 (reference pulse form) is
consistent with the actual pulse input. If not, it
indicates that H05-15 is set incorrectly or the
terminal is wired incorrectly.
•
When H05-00 = 1 (step reference is the main
position reference source), check whether H05-
05 (step size) is positive or negative.
•
When H05-00 = 2 (multi-position reference is the
main position reference source), check whether
each displacement is positive or negative.
•
Check whether the DI function FunIN.27:
PosDirSel (position reference direction) has
been allocated and , whether the logic of the
corresponding terminal is effective.
•
Check whether H02-02 (rotating direction) is set
correctly.
■ After the preceding causes are removed
,
the servo motor can rotate.
The servo
motor jitters
at low speed.
The motor
speed is not
steady.
The gain is set
unreasonably.
•
Perform automatic gain adjustment based on
section 4.5.2 Automatic Gain Adjustment.
The motor
shaft vibrates
left and right.
The load inertia
ratio (H08-15) is
too large.
•
If the servo motor can run safely, perform the
inertia auto-tuning based on section 4.5.1 Inertia
Auto-tuning.
•
Perform automatic gain adjustment based on
section 4.5.2 Automatic Gain Adjustment.
■ After the preceding causes are removed, the servo motor can run normally.
The servo
system runs
normally.
Positioning
inaccurate
The
unsatisfactory
position
deviation is
generated.
•
Conrm the input reference pulse counter (H0B-
13), the feedback pulse counter (H0B-17) and
the mechanical stop position. For the conrming
steps, see the procedure below.