Inspection Items; Daily Inspections; Chapter 8 Maintenance And Inspection - GE VAT2000 Instruction Manual

Chapter 8 Maintenance and Inspection

• Always wait at least 20 minutes after turning the input power OFF before starting inspections.
Wait at least 20 minutes after turning the input power OFF before starting work. Make sure that the
displays on the operation panel have gone out before removing the front cover.
Remove the front cover, and confirm that the "CHARGE" LED on the drive PCB or at the side of the
control PCB has gone out. Also check that the voltage between terminals L+1 or L+2 and L– is 15V or
less before starting the inspections.
Failure to observe this could lead to electric shocks.
• Maintenance, inspections and part replacement must be done by a designated person.
(Remove all metal accessories such as watches, bracelets, etc., before starting the work.)
(Always use an insulation measure tool.)
Failure to observe this could lead to electric shocks and injuries.
• Always turn the power OFF before inspecting the motor or machine. A potential is applied on the motor
terminal even when the motor is stopped.
Failure to do so could lead to electric shocks and injuries.
• Do not use parts other than those designated for the replacement parts.
Contact your inverter dealer for replacement parts.
Failure to observe this could lead to fires.
• Clean the inverter with a vacuum cleaner. Do not use water or organic solvents.
Failure to observe this could lead to fires or damage.

8-1 Inspection items

The inspections must be carried out periodically according to the working environment and frequency of
use. If there are any abnormalities, the cause must be inspected immediately and countermeasures
taken.

(1) Daily inspections

Inspection item
Temperature/humidity
Oil mist and dust
Abnormal noise and
vibration
Input power source
Cooling fan
Indicator
8. Maintenance and Inspection
DANGER
CAUTION
Table 8-1
Confirm that the ambient temperature is –10 to 50°C, and that the humidity is
95% or less with no dew condensation.
Confirm that there is no oil mist or dust in the VAT2000.
Confirm that there is no abnormal noise or vibration from the installation site or
VAT2000.
Confirm that the input voltage and frequency are within the specifications
range.
Confirm that the cooling fan rotates normally and that no lint, etc. is stuck on it.
Confirm that all lamps on the operation panel light properly.
8-1
Inspection details and work