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Step 4: If the pump is not responsive, or if resetting did not clear the error, then power cycling the pump may clear the error. Power cycling the pump requires the cycling of the breaker that powers that specific pump. See the instructions below regarding this procedure:
- Power cycling roughing pumps using the relays
- Power cycling roughing pumps using a breakerPowercyclingroughingpumpsusingabreaker
Step 5: If the error will still not clear, then try powering off the breaker for 30 minutes, then power back on and retry the pump. If this does not work, then leave the power off and inform Doug.
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- Acquire authorizations and proper PPE for category 3 breaker
- Go to breaker panel 2PK102E2
- Open the breaker for the faulted pump
- Wait 10 minutes
- Close the breaker
- Wait for the pump to restart and check if the error has cleared (pump → More...)
- Click Run, and wait for the pump to reach full speed.
Power cycling roughing pumps using the relays
The DS1 and DS2 roughing pumps can be power cycled by energizing a relay using the Beckoff rather than cycling the breaker.
Do not power cycle from the Beckoff when the pumps are running!
The channels are G3 and G4 on the Beckoff for DS1 and DS2 respectively. ON means the relay is energized and the pump is OFF.
Pump redundancy
The forelines are reconfigurable to overcome the failure of a pump, in most cases. But this should only be attempted by an expert that knows what they are doing because doing this in the wrong order can lead to problems.
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