ADDITIONAL INFORMATION
TROUBLESHOOTING*
FAULT
POSSIBLE CAUSES
SOLUTION
Over Current
Shorted output
Check for any shorts in motor cables.
Locked rotor
Check for debris in pump.
Damaged wire insulation
Check motor wire insulation with a megger.
Over Voltage
Internal Drive short
With power to Drive off, measure outputs with
ohmmeter to detect short.
Power cycling on and off
Check for a generator or switching on input
line.
High line voltage
Measure incoming line voltage to Drive; should
be between 190V and 265V.
Under Voltage
Low line voltage
Temporary loss of power
Check for local power outage.
Excessive load current
Check motor is correctly sized for the
application.
Loss of a motor phase
Check correct voltage is present on all motor
leads.
Power was removed from Drive
Check correct voltage is present on all input
lines.
Cannot Start Motor
Exceeding Service Factor Amps
Check Service Factor Amps entered are
correct.
Check pump and motor are correct.
No Service Factor Amps value
entered
Check Service Factor Amps entered and are
correct.
There is an open (connection) in
motor wires
Check resistance of all motor wires is correct.
Locked rotor
Pull pump check for debris in pump.
Dry Run
Operation at open discharge
May need to reduce Dry Run Sensitivity
pressure or apply back pressure on transducer.
Drive cannot read transducer signal
Check linearity of transducer, as it may be
damaged. See Troubleshooting Guide for more
information.
Possible leak
Check for pipe break or large leak.
Dry running pump
Check water level in well.
Ground Fault
Ground wire shorted to motor
phase
Check the ground wire for short to motor
phase wire or check insulation integrity with
a megger.
Long motor cable length
If motor cable length is more than 305m
a reactor or filter may be needed to limit
capacitance between motor wires.
System Not Grounded
Ungrounded Drive
Ground Detect parameter can be disabled, but
will reactivate after 72 hours.
Unbalanced or three phase
incoming voltage.
Line to line voltage must be twice line to
ground voltage. You cannot use two legs from
three phase power.
NOTICE
The PENTEK INTELLIDRIVE will not
operate Franklin Electric 2-wire motors.
Part Description
Qty
Part Number
Pressure Transducer
1
U17-1561-R
Transducer Cable
- 10ft
1
VFD-10TCB
Keypad
1
PID-HMI-R
6544 0412
01+ 01- I1+ I1- I2+ I2- V+ V- AI+ AI- P N SD CARD
Figure 19 - Example RS-485 Connection
Lightning/Surge Protection
Lightning arrestors or other surge suppressing
devices can be used with this product.
MOV (Metal Oxide Varistor), SOV (Silicon Oxide
Varistor).
RS-485 Communications
RS-485 is a US-based telecommunications
standard for binary serial communications
between devices. It is the protocol, or set of
specifications, that needs to be followed to
allow devices that implement the standard to
speak to each other. A fully compliant RS-485
port is included in the PENTEK INTELLIDRIVE
system to permit serial connections among
more than two devices on an RS-485 compliant
network. Figure 19 shows two-wire connection
to the Drive.
Repair Parts
PENTEK IntelliDrive
™
Owner’s Manual
PENTEK IntelliDrive
™
Owner’s Manual
19
18
