SEW MOVITRAC LTP series, Руководство по эксплуатации

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Operating Instructions – MOVITRAC® LTP
7
Fault codes and history
Operation and Service
7.2.3 Fault codes
Trip message Explanation Solution
"P-dEF" Factory default parameters have
been loaded. Press STOP key. Drive is ready to configure for
required application.
“O-I” Over-current on drive output to
motor.
Excess load on motor.
Over temperature on drive heat-
sink. • Check motor and motor connection cable for
ph-ph or ph-Earth short circuit
• Check load mechanically for a jam or stalled
condition or shock loads.
• Ensure motor nameplate parameters are
entered correctly, P1-07, P1-08, P1-09.
• If operating in Vector mode (P4-01 = 0 or 1):
•
also check motor power factor in P4-05.
• reduce speed loop gain in P4-03.
• Ensure an autotune has been successfully
completed for the connected motor.
• Increase the ramp-up time in P1-03.
“I_t-trP” 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.
• Increase acceleration ramp or decrease motor
load.
• Check cable length is within drive specification.
• Ensure motor nameplate parameters are
entered correctly, P1-07, P1-08, P1-09.
• If operating in Vector mode (P4-01 = 0 or 1),
also check motor power factor in P4-05.
• Ensure an autotune has been successfully
completed for the connected motor.
• Check the load mechanically to ensure it is free
and no jams, blockages or other mechanical
faults exist.
"OI-b" Brake channel over current. Over
current in the brake resistor cir-
cuit. • Check the cabling to the braking resistor.
• Check the braking resistor value.
• Ensure minimum resistance values from the
rating tables are observed.
"OL-br" Braking resistor overload • Increase deceleration time, reduce load inertia
or add further braking resistors in parallel.
• Ensure minimum resistance values from the
rating tables are observed.
“PS-trP” Internal power stage fault Trip on drive enable:
•
Check for wiring error or short circuit.
• Look for ph-ph or ph-Earth short circuit.
Trip during operation:
•
Check for sudden overload or over-tempera-
ture.
• Additional space or cooling may be required.
“O_Uolt” Over-voltage on DC bus • Check supply voltage is within limits.
• If trip occurs on deceleration, increase deceler-
ation time in P1-04.
“U_Uolt” Under-voltage on DC bus Occurs routinely when drive powered down. If it
occurs whilst running, check supply voltage.
“O-t” Heatsink over temperature • Check drive cooling and enclosure dimensions.
• Additional space or cooling may be required.
“U-t” Under temperature • Occurs when ambient temperature is less than
–10 °C
• Raise temperature to over –10 °C in order to
start the drive.
"th-Flt" Faulty thermistor on heatsink Contact SEW-EURODRIVE Service.
“E-triP” External trip (connected to digital
input 3) • E-trip on digital input 3. Normally closed contact
has opened for some reason.
• Check motor thermistor (if connected).
"4-20 F" Analog input current out of range • X3
–
Check input current is within range defined
in P2-36.
– Check cable connection.
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