Panasonic MINAS-BL GU series, Operating Instructions Manual

Page: 20 / 21

English
B11 B12
Maintenance and Inspections Repair
Maintenance/ Inspections
Routine maintenance and inspection are essential for proper and satisfactory operation of
the motor.
Maintenance/ Inspection item
Maintenance/
Check item
Inspection
procedure
Condition
Input voltage Voltmeter Must be within ±10% of rating.
Input current Ammeter Must be within rated input current described on nameplate.
Insulation
resistance
Insulation
resistance
tester
The resistance of motor should be 1 MΩ or higher when tested
with a 500 V megger.
Measuring position:
Between power input line (L1, L2,L3) and grounding wire
Brushless motor:
Across phase (U, V, W) and ground terminals
Noise Hearing
Noise level must not be different from the usual level. In addition,
abnormal noise such as rumbling noise must not be heard.
Vibration By hand Free from abnormal vibration.
Grease
leakage
Visual check
Check that circumference of the motor and gear head are free
from oil and grease.
If grease leakage will cause problem, use grease sealing cover.
Installation
bolt
Torque
wrench
Check for loosening of bolt, and tighten additionally as
necessary.
Use
environment
By sight
Check the ambient temperature and humidity, and make sure
that dirt, dust, or foreign substance is not found.
Caution
• Power-on/off operations should be done by the operators themselves for ensuring safety
in checking.
• Do not touch the motor while it is running or immediately after it stops because it gets hot
and stays hot for a while after power has been turned off.
• When testing the insulation resistance of the brushless amplifier with the megger, discon-
nect the amplifier from all associated devices. Performing megger testing without first
disconnecting these devices will cause failure.
When disassembly, troubleshooting, etc., is needed,
be sure to contact our service department or the sales agent of purchase.
Repair
• Consult to a dealer from whom you have purchased the product for details of repair.
When the product is incorporated to the machine or equipment you have purchased,
consult to the manufacturer or the dealer of the machine or equipment.
Technical information
• Technical information of this product (Operating Instructions, CAD data) can be
downloaded from the following web site.
industrial.panasonic.com/ac/e/