Opl Output Phase Loss Protection; Overheat Protection For Heat Sink - IMO Jaguar CUB Instruction Manual

OPL
[ 5 ] Output phase loss protection
Problem Output phase loss occurred.
Possible Causes
(1) Inverter output wires are
broken
(2) Wire for motor winding are
broken
(3) The terminal screws for
inverter output were not
tight enough.
(4) A single-phase motor has
been connected
OH1
[ 6 ]

Overheat protection for heat sink

Problem Temperature around heat sink rose.
Possible Causes
(1) Temperature around the
inverter exceeded that of
inverter specifications.
(2) Accumulated running time
of the cooling fan
exceeded the standard
period for replacement, or
the cooling fan
malfunctioned.
(3) Air vent is blocked.
(4) Load was too heavy.
What to Check and Suggested Measures
Measure the output current.
Replace the output wires.
Measure the output current.
Replace the motor.
Check if any terminal screws have become loose.
Tighten the terminal screws to the recommended torque.
Single-phase motors cannot be used. Note that the Jaguar
CUB only drives three-phase induction motors.
What to Check and Suggested Measures
Measure the temperature around the inverter.
Lower the temperature around the inverter (e.g., ventilate
the enclosure well).
Reduce the load.
Check the accumulated running time (E52=2). Refer to
Chapter 3, Section 3.8 "Reading Maintenance Information."
Replace the cooling fan.
Visually check that the cooling fan rotates normally.
Replace the cooling fan.
Check if there is sufficient clearance around the inverter.
Increase the clearance.
Check if the heat sink is clogged.
Clean the heat sink.
Measure the output current.
Reduce the load (e.g. reduce the load before the overload
protection occurs using the overload early warning (E34).
Decrease the carrier frequency (F26).
Enable the overload protection control (H70).
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