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11.2. Troubleshooting
11.2.3. Command Trouble
11.2.3. Command Trouble
Figure 11-5: Home Return command causes no motion.
Home Return command causes no motion.
Make sure the combination of Motor and
Driver Unit is proper.
Alarm is activated after the
power is turned on.
Motor servo is active.
EMST, OTP or OTM
input is active.
HOS command starts
Home Return.
HS command is set to the
program in a channel to start
Home Return.
NO
HS command starts
Home Return.
Home Return can
not be executed.
YES
NO
NO
YES
!
Caution
YES
NO
YES
NO
YES
Confirm if HS command is
programmed in the channel.
NO
Are channel selection
(PRG0 to PRG5 inputs)
and the RUN command
properly inputted?
Can HS command
YES
start Home Return?
Check winding of Motor and Resolver.
Is the Motor normal?
Contact NSK representative in your area.
Caution: Check with IO command.
！
Refer to "7.1.18.1.Monitoring Control
Input/Output Signals (B3 and 23 type
Driver Units)" or "7.1.18.2. Monitoring
Control Input/Output Signals (B5 and 25
type Driver Units)."
Refer to "10.2. Alarm List."
Refer to Figure 11-3: Motor trouble.
Deactivate EMST, OTM or OTP input.
Caution
！
NO
YES
YES
Check CN2 and C5 connector
wiring.
NO
Refer to "Appendix 2. How to Check Motor Condition."
NO
YES
— 11-6 —
B
B
3
3
t
t
y
y
p
p
e
e
2
3
t
y
p
e
2
3
t
y
p
e
If the Driver Unit is B3 or 23,
Is I/O type set to TY4 ?
!
NO
HOS input can be
switched ON from
OFF.
YES
YES
Can HS command
start Home Return?
NO
Replace the Motor.
B
B
5
5
t
t
y
y
p
p
e
e
2
5
t
y
p
e
2
5
t
y
p
e
Caution
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Table of Contents
Troubleshooting
