FR200 Series Vector control inverter
- 133 -
Chapter 8 Maintenance and Inspection
8.1 Inspection
Frequency semiconductor devices, passive electronic components, and the movement device is
configured, these devices have life, even under normal working conditions, if over the useful life, some
devices may have characteristic changes or failure. In order to prevent this phenomenon leads to
failure and must be checked daily, periodic inspection, parts replacement and other preventative
maintenance checks. After the machine installation is recommended every 3 to 4 months to conduct
an inspection. If any of the following situations, please check to shorten the cycle.
High-temperature, high-altitude environment;
Frequent starting and stopping the environment;
The presence of AC power or load greater volatility environment;
Environment existed large vibration or shock;
The existence of environmental dust, metal dust, salt, sulfuric acid, chlorine element;
Storage environment is very bad.
8.1.1 Daily inspection
To avoid damage and shorten the life of the inverter, please confirm the following items daily.
item
contents
Strategies
Power supply
Check the supply voltage meets the
requirements phase power supply
and the presence of the
phenomenon.
Press nameplate asked to solve.
Surroundings
Installation environment meets the
requirements of Table 3-1.
Confirm the source and properly
resolve
Cooling System
Whether the inverter and the motor
and cooling fan status.
Confirm whether the overload,
tighten the screws, if the inverter
heatsink fan is dirty confirm
whether the stall.
Motor
Whether the motor is abnormal
vibration and abnormal noise.
Tightening mechanical and
electrical connections and do
lubricated mechanical parts.
Load conditions
Inverter output current is higher than
the rating of the motor or inverter
and lasted for some time.
Confirm whether there is an
overload condition occurs confirm
the correct drive selection
Note: Do not relate jobs in the state power is turned on, otherwise there is danger of electric
main circuit DC voltage has dropped to a safe level, five minutes before the related operations.
8.1.2 Regularly check
Under normal circumstances, every three months to four months to conduct a periodic inspection
is appropriate, but in the actual case, combined with the use of each machine and the working
environment, to determine the actual inspection cycle.
