6
MP15 Jockey Pump Controller
Publication 245-EN – November 2013
Functions
Disconnect switch - Controls jockey pump main power. Can be
padlocked in the "OFF" position.
Operator Interface Device (OID) — Provides visual indication of
system pressure, alarms, events, and system messages.
Hand-Off-Auto (HOA) Selector switch.
o
Hand - Manually starts the jockey pump.
o
Off - Manually stops the jockey pump.
o
Auto - Jockey pump starts and stops automatically.
USB port for recording alarm and event data log records to a USB
memory stick.
Sequence of Operation
The explanation of the Sequence of Operation will start with the assumption that
the controller has been properly installed, all external connections have been
made, and the Motor Starter Protector is
closed
.
Manual Operation
To manually start the jockey pump motor, turn the HOA Selector to the Hand
position. This will cause the Motor Contactor contact to
close
, thus starting the
motor.
To manually stop the motor, turn the HOA Selector to the Off position, thus
causing the Motor Contactor contact to
open
.
Automatic Operation
For automatic operation of the jockey pump motor, turn the HOA Selector to the
Auto position. When the system pressure drops below the user configured
Start
Pressure
, the Motor Contactor contact will
close
, thus starting the motor.
The controller will automatically
open
the Motor Contactor contact once the
system pressure rises to or above the user configured
Stop Pressure
, and the
Minimum Run Timer
is either disabled or expired.
