Fault Codes - SEW-Eurodrive MOVITRAC LTP-B Operating Instructions Manual

Service and fault codes
7

Fault codes

7.3 Fault codes
Code Trip message
01 "h-O-I"
"O-I"
04 "OI-b"
"OL-br"
06 "P-LOSS"
07 "O.Uolt"
"Flt-dc"
08 "I.t-trP"
11 "O-t"
"O-HFAT"
14 "Enc 01"
"Enc 02"
"Enc 03"
"Enc 04"
"Enc 05"
"Enc 06"
"Enc 07"
"Enc 08"
"Enc 09"
"Enc 10"
44
Explanation
Over-current on drive output to
motor.
Excess load on motor.
Over temperature on drive heat-
sink.
Brake channel over current. Over
current in the brake resistor
circuit.
Braking resistor overload
Input phase loss trip
Over-voltage on DC bus
DC-bus ripple too high
Drive overload trip, occurring
when the drive has been deliver-
ing > 100 % rated current (set in
P1-08) for a period of time. The
display flashes to indicate an
overload condition.
Heatsink over temperature
Encoder feedback faults
(Only visible when an encoder
module is connected and
enabled)
Solution
Trip during constant speed:
• Investigate overload or malfunction.
Trip on drive enable:
• Check for stalled or jammed motor.
• Check for star-delta motor wiring error.
• Check cable length is within drive specification.
Trip during operation:
• Check for sudden overload or malfunction.
• Possible cable fault between drive and motor.
• Acceleration / deceleration time may be too
short, requiring too much power. If P1-03 or P1-
04 cannot be increased, a larger drive is
required.
• Check cabling to the braking resistor.
• Check braking resistor value.
• Ensure minimum resistance values from the
rating tables are observed.
• Increase deceleration time, reduce load inertia
or add further braking resistors in parallel.
• Ensure minimum resistance values from the
rating tables are observed.
Drive intended for use with 3-phase supply has lost
1 input phase.
• Check supply voltage is within limits.
• If trip occurs on deceleration, increase deceler-
ation time in P1-04.
• If necessary, connect a braking resistor.
Check power supply
• Increase acceleration ramp (P1-03) or
decrease motor load.
• Check cable length is within drive specification.
• Check the load mechanically to ensure it is free
and no jams, blockages or other mechanical
faults exist.
• Check drive cooling and enclosure dimensions.
• Additional space or cooling may be required.
• Reduce switching frequancy
Encoder communication loss
Encoder feedback speed error
• Incorrect encoder PPR count set in parameters
• Check P1-10 for correct nameplate speed
®
Hiperface signal loss / line encoder channel A
error
Line encoder channel B error
Line encoder channel A and B error
®
• Hiperface data channel error
• Motor is spinning during power up
®
Hiperface IO communication channel fault
®
Hiperface type not supported
KTY not connected
Operating Instructions – MOVITRAC® LTP-B