Inovance MD500-PLUS Series - Routine Maintenance and Inspection; Routine Inspection Items; Daily Inspection Items

Routine Maintenance and Inspection
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8 Routine Maintenance and Inspection
8.1 Routine Inspection Items
8.1.1 Daily Inspection Items
The service life of the devices inside the AC drive is affected by the ambient
temperature, humidity, dust, and vibration. Therefore, it is necessary to carry out
daily and periodic maintenance. Frequent inspections are required if the device is
used in harsh environments suffering: 1) high ambient temperature; 2) frequent start
and stop; 3) violent fluctuation in the AC power supply or load; 4) excessive vibrations
or shock; and 5) dust, metal dust, hydrochloric acid, and other corrosive articles.
Check the following items on a daily basis to avoid deterioration in performance or
product damage. Copy this checklist and sign the "Checked" column after each
inspection.
Item
Description
Solution Checked
Motor
Check whether unusual noise or
vibration is generated from the
motor.
● Check whether the mechanical
connection is normal.
● Check whether phase loss occurs on the
motor.
● Check whether retaining screws of the
motor are tightened.
Cooling fan
Check whether the cooling fans of
the AC drive and motor are
normal.
● Check whether the cooling fan of the AC
drive is normal.
● Check whether the cooling fan of the
motor is normal.
● Check whether the ventilation channels
are clogged.
● Check whether the ambient temperature
is within the permissible range.
Installation
environment
Check whether the cabinet and
cable ducts are normal.
● Check input and output cables of MD500‑
PLUS for damaged insulation.
● Check the mounting bracket for vibration.
● Check whether copper busbars and cable
terminals become loose or get corroded.
Load
Check whether the operating
current of the AC drive exceeds
the rated current of the AC drive
and motor.
● Check whether the motor parameter
settings are correct.
● Check whether the motor is overloaded.
● Check whether the mechanical vibration
is above 0.6 g.
Input voltage
Check whether the power voltage
of the main circuit and control
circuit is normal.
● Check whether the input voltage is within
the permissible range.
● Check whether a heavy load is started
near the AC drive.