mori seiki NL1500/500, Руководство по обслуживанию

Страница: 190 / 245

ɹ˂ʳʽʒʰʕʍʒɁႱࢠ
COOLANT UNIT PROBLEMS
190
7-6
ɹ˂ʳʽʒʧʽʡɁᬩᱝɝ
Abnormal Sounds emitted from Coolant Pump
ɹ˂ʳʽʒʧʽʡͽӦ˹ȾᬩᱝɝᴥႱࢠᬩᴦȟȪȲکնɂǾ
͏˩ɁՁىȟᐎțɜɟɑȬǿ
॒ᛵȾख़ȫȹɹ˂ʳʽʒɁᛃፈ
ɗຏોɥᚐȶȹȢȳȨȗǿ
The possible causes of abnormal sounds emitted when the
coolant pump is operating are outlined below. Replenish the
coolant or perform maintenance work when it becomes
necessary.
Pump motor not rotating.
coolant button
7
[ON] (On)
on the operation panel illuminated?
Door closed?
Machine in emergency stop
condition?
Release emergency stop.
Recovery
Close door.
Magnet Switch Malfunction
Motor breaker (thermal relay) QM63 turned ON?
Magnet switch ON?
Power supplied to motor?
200 VAC (DC) supplied to magnet switch upper
terminal?
Confirm 200 Vsupply (breaker).
Magnet Switch Malfunction
Check wiring, connections between motor and magnet switch.
Confirm 24 VAC (DC) supply (circuit protector).
Magnet switch motion-related 24 VAC (DC) supplied?
Reset (turn ON) the motor breaker (thermal relay)
and check the result. If the error occurs again, check
the load on the motor.
200 VAC (DC) supplied to magnet switch lower terminal?
Motor Malfunction
Yes
No
Yes
No
Yes
No
No
No
Yes
Yes
No
Yes
No
No
Yes
Yes
Yes No
No
Recovery
No
Recovery
Ձى
Cause
Վᐎᬱᄻ
Reference Items
ɹ˂ʳʽʒบᦀ˪ᠴ
Low oil level in the coolant tank
“
ɹ˂ʳʽʒᦀɁᆬᝓ
”
ᴥ
186
ʤ˂ʂᴦ
“Coolant Level Check” (page 186)