Grundfos DPC 1-3 User Manual

18 | Page 19 | Page
F U L L
N O W A T E R
O V E R F L O W
F U L L
Liquid level in the lower water tank/water well is below lower
sensor/probe (float switch in down position)
APPLICATION: SEWAGE/DRAINAGE (USING FLOATS)
When “float switch A” is at up position, pump start running
Liquid level in the well is below the pump inlet, pump stop running.
Liquid level in the lower water tank/water well is below lower
sensor/probe (float switch in down position)
Liquid level in the sump is below the pump inlet, pump stop
running
When “float switch A” is at down position, pump stop
When “float switch B” is at up position, control panel sends overflow
alarm
APPLICATION: PRESSURE BOOSTING (USING PRESSURE SWITCH)
If there is full pressure in the pipeline or pressure tank, contact point
of pressure switch is OFF then pump stop running
D R Y R U N
N O W A T E R
D R Y R U N
N O W A T E R
TROUBLE SHOOTING
FAULT MESSAGE POSSIBLE CAUSE SOLUTIONS
Flashing of "UNDER V"
Actual voltage is lower than
the calibrated voltage,
pump is in under voltage
protection state
Check the power supply at source
Control unit will attempt to
restart the pump every 5 minutes
until line voltage is restored to
normal
Flashing of "OVER V"
Actual voltage is higher
than the calibrated voltage,
pump is in over voltage
protection state
Check the power supply at source
Control unit will attempt to
restart the pump every 5 minutes
until line voltage is restored to
normal
Flashing of "OVERLOAD"
Actual drawn current is
higher than the calibrated
current, pump is in overload
protection state
Control unit will attempt to
restart the pump every
5 minutes until running current
is
restored to normal
Pump impeller is jammed/
pump motor dragging/
pump bearing broken
Check pump impeller or bearing
Flashing of "NO CALIBER"
Parameter calibration not
completed
Carry out parameter
calibration

Grundfos DPC 1-3 Specifications

General

Brand	Grundfos
Model	DPC 1-3
Category	Controller
Language	English