K&R GT600-4T132G, User Manual

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9. Maintenance and Inspection
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Chapter 9 Maintenance and Inspection
9.1 Daily Inspection
Safety Information
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Do not connect or disconnect wiring while the power is on.
WARNING
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Disconnect all power and wait for several minutes. Do not touch any terminals
before the capacitors have fully discharged.
●
Do not modify or disconnect wiring, remove optional extension card or replace
the cooling fan while the power is on.
●
Make sure to connect the motor-side grounding terminal. Failure to comply may
result in electric shock due to touching motor housing.
●
Do not allow unqualified personnel to do the repair & maintenance work.
●
Installation, wiring, commissioning, repair & maintenance, and component
replacement must be performed only by qualified technicians.
●
Do not run the AC drive with front cover removed.
CAUTION
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Drawings in the manual are sometimes shown without covers or protective
guards. Remember to install the covers or protective guards as specified first,
and then perform operations in accordance with instructions.
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Tighten all terminal screws based on specified tightening torque.
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Ensure that input voltage is within permissible range. Incorrect input voltage of
main circuit may result in abnormal running.
●
Keep combustible materials far away from the AC drive or mount the AC drive on
incombustible surfaces such as a metal wall.
●
Replace the cooling fan in correct ways as specified in this chapter. Ensure
correct air outlet direction of the fan. Incorrect air direction will diminish the
cooling effects.
●
Do not connect or disconnect motor while the drive is running. Failure to comply
may result in electric shock and damage to the AC drive.
●
Use shielded cables for control circuit wiring. Meanwhile, ground the shield to
the grounding terminal reliably.
●
Do not modify the drive circuitry. Failure to comply will damage the AC drive.
●
Make sure to connect the output terminals of the AC drive and the motor
terminals correctly.
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If it is necessary to change the motor rotation direction, exchange any two of
UVW cables of the AC drive.
●
Do not operate the AC drive that has been damaged. This is to prevent further
damage to external equipments.