40
Operating Instructions – MOVITRAC® LTE-B
7
Error codes
Service and Error Codes
7.3
Error codes
Error message Explanation
Solution
"P-dEF"
The factory-set parameters were
loaded.
Press the <Stop> key. The inverter can now be con-
figured for the required application.
"O-I"
Overcurrent at inverter output to
the motor.
Motor overload.
Overtemperature at the heat sink
of the inverter.
Error during constant speed:
•
Check for overload or error.
Error when enabling the drive:
•
Check the motor for stalling or blocking.
•
Check for star-delta motor connection error.
•
Check whether the length of the cable meets
the requirements.
Error during operation:
•
Check for sudden overload or malfunction.
•
Check cable connection between inverter and
motor.
•
The acceleration/deceleration time might be too
short and requires too much power. If you can-
not increase
P-03
or
P-04
, use a larger inverter.
"I.t-trP"
Inverter overload error. This error
occurs when the inverter has
delivered more than 100% of the
nominal current for a certain time
(defined in
P-08
). The display is
flashing to indicate overload.
•
Increase the acceleration ramp (
P-03
) or
reduce the motor load.
•
Check whether the length of the cable meets
the requirements.
•
Mechanically check the load to make sure it can
be moved freely and no blockage or other
mechanical problems are present.
"OI-b"
Brake channel overcurrent. Over-
current in the braking resistor cir-
cuit.
•
Check supply cable to the braking resistor.
•
Check the braking resistance value.
•
Observe the minimum resistance values given
in the respective tables.
"OL-br"
Braking resistor overload
•
Increase deceleration time, reduce load
moment of inertia or switch further braking
resistors in parallel.
•
Observe the minimum resistance values given
in the respective tables.
"PS-trP"
Internal output stage error
Error when enabling the drive:
•
Check for incorrect wiring or short circuit.
•
Check for phase short circuits or ground faults.
Error during operation:
•
Check for sudden overload or overtemperature.
•
Provide an additional room or cooling, if neces-
sary.
"O.Uolt"
DC link overvoltage
•
Check whether the supply voltage is too high or
too low.
•
If the error occurs during deceleration, increase
the deceleration time in
P-04
.
•
Connect a braking resistor, if required.
•
If a braking resistor is already installed, make
sure that
P-34
is set to 1 or 2.
"U.Uolt"
DC link undervoltage
Occurs routinely when switching off the inverter.
Check line voltage if this occurs while the motor is
running.
"O-t"
Overtemperature at heat sink
•
Check inverter cooling and housing dimen-
sions.
•
Provide an additional room or cooling, if neces-
sary.
"U-t"
Undertemperature
•
Occurs at an ambient temperature below -
10 °C.
•
Increase the temperature to above -10 °C to
start the inverter.
"th-Flt"
Faulty thermistor at heat sink.
Please consult SEW-EURODRIVE Service.
Summary of Contents for MOVITRAC LTE-B series
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