NSK MEGATHRUST ESA-LYB2T15-21, Руководство пользователя

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14.2.4.4. CPU Error
[Output] DRDY: Open
[TA] Disabled
[LED] Unstable
[Motor Condition] Servo-OFF
Table 14-13: Cause and Remedy: CPU error
Cause Remedy
(1) CPU is out of control due to noise.
·
Turn power on again.
· The alarm is deactivated when the power is turned on
again. If the alarm occurs frequently, contact NSK.
(2) Faulty PCB.
(When the alarm is not deactivated after
the power is turned on.)
·
Replace Driver Unit.
(Refer to “Appendix 4. How to Replace ESA13 Driver
Unit”.)
Notes :(1) CPU is not functioning. RS-232C communication and other controls are disabled.
(2) Contact NSK if the alarm occurred.
14.2.4.5. Excess Position Error
[Output] DRDY: Open
[TA] F1 > Excess Position Error
[LED] F1
[Motor Condition] Servo Lock
Table 14-14: Cause and Remedy: Excess position error
Cause Remedy
(1) Position error counter value is over “CO”
setting due to mechanical restraint such
as brake.
·
Remove mechanical restraint.
(2) Improper gain setting.
·
Readjust gain.
(Refer to “Chapter 8. Trial Running and Adjustment”.)
(3) Excessive acceleration/deceleration. ·
Decrease acceleration/deceleration.
(4) “CP” setting is too low.
·
Increase “CO” setting.
·
Activate the “CLR” input to cancel alarm, then
position error counter is cleared to 0 (Zero).
·
Adjust servo parameters (VG, VI, PG).
·
Adjust acceleration/deceleration (MA).
·
Check the applied load.
(5) Unmatched combination of Motor and
Driver Unit.
·
Check reference number of Motor and Driver Unit.
(6) Improper “PA” setting.
·
Refer to “6.2. Motor and Driver Unit Convination”.
(7) Faulty PCB.
When the alarm is on even “RUN”
command is not executed.)
·
Replace Driver Unit.
(Refer to “Appendix 4. How to Replace ESA13 Driver
Unit”.)
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