Virginia Controls, LLC
MH-3000 User Manual, 1_03C10-VC
Page 13
2.3.3
Pump Motor Wiring
Connect the pump motor as shown on sheet S of the schematic.
If an Across-the-Line starter is used, then the motor leads will connect to the starter
overload.
If a Wye-Delta starter is used, then the motor leads will connect to the bottom of the
overload, and to terminals T4,T5,T6. See the schematic for specific connection details.
2.3.4
Wye-Delta Run Contact Wiring
If a Wye-Delta starter is used, an auxiliary contact of the RU contactor may be connected
in series with the up valves, to prevent the car from starting to run up until the motor is in
the Delta mode. If this is not desired, then jump the contact. This will allow the valves to
be energized as soon as the pump motor starts.
If a Soft-Start is used, the Up-to-Speed signal is used in a similar way.
