Franklin Electric CERUS X-DRIVE CXD-003A-4V, Installation And Operation Manual

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MAINTENANCE
Troubleshooting
154
OPHL
(82) U phase lacked
OPHL
(83) V phase lacked
OPHL
(84) W phase lacked
U phase output phase loss
V phase output phase loss
W phase output phase loss
Action and Reset
Action level [PROT-23]
Action time [PROT-22]
[PROT-24] : Use this setting first if there is DC braking function before using [PROT-22]
Related parameters Fault/Warning operation dependent on [PROT-21]
Reset method Manually
Reset condition Immediately
Recorded Yes
Possible Causes Corrective Action
• The three-phase impedance of motor
is unbalanced
• The motor is wired incorrectly
• Damaged motor cable
• Using a single-phase motor
• The current sensor is damaged
• The drive capacity is much larger than
the motor capacity
• Replace the motor.
• Check motor wiring.
• Check the motor cable condition and replace if needed.
• Choose a three-phase motor.
• Check the flat cable of the control board. Re-do the wiring and test again if the flat cable is loose. If the
fault still exists, call Technical Support. Verify that the three-phase current is balanced via a current
clamp meter. If it is balanced and the OPHL fault still exists, call Technical Support.
• Make sure the capacity of the drive and motor match to each other.
Fault Display Description
OPRS (174)
Overpressure (M)
System exceeds pressure limit
Action and Reset
Action level PID Feedback is greater than
OverPress Level [SET-40]
. Operation set by
OverPress Set [SET-39]
.
Action time Immediately
Related parameters
[SET-39]
and
[SET-40]
Reset method Auto If
OverPress Set [SET-39]
=
2_OP Auto Reset
, reset automatically when pressure is less than
Wake-Up Level [SET-31]
.
Manually If
OverPress Set [SET-39]
=
1_OP Trip
, requires manual reset.
Reset condition If reset automatically, pressure must be less than Wake-Up Level [SET-31]
Recorded Yes
Possible Causes Corrective Action
• System pressure is too high
• Nuissance tripping
• Trips when system is at a low pressure
• Trips at wrong level • Check for closed valves in system
• Increase analog input filter (
[IO-04]
,
[IO-09]
, or
[IO-10]
)
• Check wiring and voltage to sensor. Confirm pressure reading from keypad display to secondary
gauge.
• Check
[SET-19]
units,
PID F/B Max [SET-20]
, and
OverPress Level [SET-40]
.
Fault Display Description