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TO GET ASSISTANCE, CALL: 919-774-7667
ZENITH PUMPS
Feedback Control by Using a Flowmeter with Frequency Signal
(cont’d)
5. Result:
•
The output from the pump will be controlled by the flowmeter
•
The units of the setpoint and the Tach are same as the unit of F
m
6. IMPORTANT NOTE:
•
The unit of the setpoint is in (cc/min), and
no longer in (RPM)
•
The pump speed may vary at very wide range.
Do not to exceed the factory suggested
speed limit
•
Any restriction at the discharge side of the pump can rapidly increase the speed of
pump.
This is the major causation making the pump over-speed. Check any down-stream
restrictions before the operation.
•
Always test the system without any down-stream restrictions. Gradually increase the
restrictions, and monitor the speed of the pump closely, to make sure not to over-run
the pump
•
The operation can make the pump runs at very high speed. You should test your sys-
tem for safety under all potential conditions. Failure to do so can result in damage to
the equipment and/or serious injury to personnel
Summary of Contents for ZeDrive
Page 10: ...Page 9 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS Control Cabinet Wiring...
Page 18: ...Page 17 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS Typical Applications Solutions...
Page 38: ...Page 37 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS Trouble shooting Fault Information...
Page 45: ...Page 44 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS Complete Code List...
Page 59: ...Page 58 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS System Drawings...