Franklin Q-link, Installation, Programming Operation, & Maintenance Manual

Page: 99 / 125

99
Fault Cause

Remedy
Ground Fault (L) Occurs when: Ground fault
current exceeds the internal
ground fault level value.

Ensure Motor and VFD are grounded
per the installation guide.

Disconnect motor wires from
package and Check the output
wiring and insulation of motor
windings with Megger tester.
Bypass Motor
Overload
The Bypass Motor Overload
protection provides motor
overload protection when in
Bypass mode only. If the
motor pulls more current
than set motor FLA, it will trip
based on selected trip class
to prevent motor damage.

Check FLA, Trip Class,

Check if motor is overloaded
Bypass Phase Loss The bypass did not see
current in one or more of the
phases.

Check wiring passing through the
bypass current sensors for loose
connections.
Bypass Board Error The bypass board error is a
“hard fault” and requires that
the board be power cycled to
clear it.

If Power cycle does not clear the
fault, please consult factory
Bypass Stall The Stall fault occurs when
the current exceeds 300% of
set FLA for 0.5 sec and the
current slope is not
decreasing. (Not active
during startup).

Check FLA settings.

Check if motor is overloaded.

Check for mechanical issues (bad
bearings, bad gears or belts)

If nothing helps Adjust stall level
higher. (Default is 300%)
Bypass Max Time to
Start
A max time to start trip
occurs if the motor current
has not decreased below FLA
10 seconds after start.

Check that your FLA setting in
PRIMARY ‐ 04 matches the motor
nameplate

Check the motor and system for
mechanical issues

Check your dip switch settings

Check power wiring for loose
connection.
Bypass Ground Fault A Ground Fault occurs when
bypass module determines
that there is a motor ground
leak current.

Disconnect motor leads from bypass
package and test insulation with
Megger

If Megger reading shows low
insulation, check motor wiring and
motor junction box for damaged
wire insulation and moisture