Troubleshooting - Pentair intellidrive pid10 Owner's Manual

Troubleshooting*

Fault
Over Current
Over Voltage
Under Voltage
Cannot Start Motor
Dry Run
Ground Fault
System Not Grounded
Possible Causes
Shorted output
Damaged wire insulation
Internal Drive short
Power cycling on and off
High line voltage
Low line voltage
Temporary loss of power
Excessive load current
Loss of a motor phase
Power was removed from
Drive
Exceeding Service Factor Amps
No Service Factor Amps value
entered
There is an open (connection)
in motor wires
Locked rotor
Operation at open discharge
Drive cannot read transducer
signal
Possible leak
Dry running pump
Ground wire shorted to motor
phase
Long motor cable length
Ungrounded Drive
Unbalanced or three phase
incoming voltage.
Solution
Check for any shorts in motor cables.
Check motor wire insulation with a megger.
With power to Drive off, measure outputs
with ohmmeter to detect short.
Check for a generator or switching on input
line.
Measure incoming line voltage to Drive;
should be between 190V and 265V.
Check for local power outage.
Check motor is correctly sized for the
application.
Check correct voltage is present on all motor
leads.
Check correct voltage is present on all input
lines.
Check Service Factor Amps entered are
correct.
Check pump and motor are correct.
Check Service Factor Amps entered and are
correct.
Check resistance of all motor wires is
correct.
Pull pump check for debris in pump.
May need to reduce Dry Run Sensitivity
pressure or apply back pressure on
transducer.
Check linearity of transducer, as it may be
damaged. See Troubleshooting Guide for
more information.
Check for pipe break or large leak.
Check water level in well.
Check the ground wire for short to motor
phase wire or check insulation integrity with
a megger.
Motor cable length more than 1000 ft is not
recommended.
Ground Detect parameter can be disabled,
but will reactivate after 72 hours.
Line to line voltage must be twice line to
ground voltage.
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