Amada S-2200CA, Operation Manual

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CHAPTER 5: MAINTENANCE
IS-2200CA/4500CA INVERTER POWER SUPPLY
990-412 5-15
Section IV: Maintenance Procedures
Cooling Maintenance
Perform the following maintenance on the cooling system:
•
Monthly – Check the water hoses to assure there is no leakage.
•
Any time there is a chance that the water might freeze – Drain the water.
•
Any time you believe that there is a build-up of sediment that might decrease the water flow
and cause the Power Supply to overheat –
Drain and flush the hoses and heat sink/IGBT
cooling chamber.
Checking Water Hoses
1. Disconnect power to the Power Supply then wait for 20 minutes after the power is removed
before maintenance.
2. Check the input/output hoses on the right side of the Power Module and the interconnecting hoses
on the left side for any sign of water leakage.
3. Turn off the water supply and squeeze the hoses to check for brittleness. Restore water flow.
4. Re-install the plastic high voltage protective cover with the four screws that secure it.
5. Close the Power Supply door and secure it with the two quarter-turn screws.
6. Reconnect power to the Power Supply, then set the circuit breaker to ON.
Draining Water Hoses
1. Turn off and tag the Power Supply circuit breaker, so the Power Supply cannot be operated while
the water is drained.
2. Turn off the water source, wherever convenient.
NOTE: Be sure to have a bucket or other receptacle handy to collect the drained water.
3. Disconnect both hoses at the bottom of the Power Supply and allow the water to drain into the
bucket.
4. Allow the input and output hoses to drain into the bucket.
5. Leave the hoses disconnected until danger from freezing has passed.
Flushing Water Hoses and Cooling Chambers
1. Turn off and tag the Power Supply circuit breaker, so the Power Supply cannot be operated during
flushing.
2. Turn off the water source, wherever convenient.
NOTE:
Be sure to have a bucket or other receptacle handy to collect the drained water.