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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.:
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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Step 6: Find the power switch on the back of the controller and power off for a few seconds, then turn back on. Ensure that it powers off completely by checking the front panel
Step 7: Ensure that the controller is not reporting a failure or alarm indicator after it turns back on and finishes the initialization, which takes about 20 seconds.
Step 8: Ensure the controller is in remote mode. The indicator light beside "Remote" on the column of status lights should illuminated. If it is not, then press and hold the "Local/Remote" button on the front panel until the "Remote" status indicator comes on (this should take only a few seconds).
- Note: You will almost certainly not have to do this
Step 9: At this point, if the failure has been cleared, the pump should be able to be restarted as described in Restarting DPS pumps.
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DS-DPS controllers at penetration 20-12:
US-DPS controllers at penetration 20-10:
Power cycling roughing pumps using a breaker
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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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