YASKAWA GPD 505/P5 Programmierhandbuch
PP.P5G5.03.Troubleshoot
Page 1
Rev. 06/11/2003
Yaskawa Electric
America
Unit Troubleshooting Manual
Section Three:
Fault Codes & Appendix
GPD 506/P5 and GPD 515/G5
(0.4 ~ 160kW)
PP.P5G5.03.Troubleshoot
Page 2
Rev. 06/11/2003
Section Three:
Fault Codes
GPD 515/G5
DSPL ENTER
DIGITAL OPERATOR JVOP-131U
FREF FOUT IOUT
ACCEL
F/R
V/F
VMTR
FLA PID
DECEL
FBIAS
OC
RUN STOP
RESET
LOCAL
REMOTE
REMOTE
REF
SEQ
kWout
MONTR
FGAIN
kWsav PRGM
GPD 505/P5 GPD 506/P5
PP.P5G5.03.Troubleshoot
Page 3
Rev. 06/11/2003
Fault Codes
The GPD 506/P5 and GPD 515/G5 inverters can store up to (4) faults.
The GPD 515/G5 inverter has a fault trace that saves the drive status
at the time of the fault, and a fault history indicating elapsed time of
the stored faults.
The fault codes can be grouped into (3) categories:
Major Fault - Motor coasts to a stop, the fault is displayed on the
digital operator, and the fault relay is activated.
Minor Fault - Operation continues and the fault flashes on the
digital operator. The fault relay does not activate.
Parameter Setting Error - Inverter can’t run. The fault is
displayed on the digital operator, and the fault relay is not activated.
A complete list of fault codes may be found in the appendix.
PP.P5G5.03.Troubleshoot
Page 4
Rev. 06/11/2003
506 √515 √505 Undervoltage of the main circuit when running.
230V Units - trip point 190V DC or less.
460V Units - trip point 380V DC or less.
600V Units - trip point 546V DC or less.
UV1
DC Bus Undervolt Uu1
Undervoltage of the control circuit when running.
230V Units - 30kW ~ 75kW, monitors the (-15V)
power supply.
460V Units - 55kW ~ 160kW, monitors the (-15V)
power supply.
UV2
CTL PS Undervolt Uu2
Possible Cause(s): Single phase condition on the input, low input voltage at L1, L2, and L3.
Corrective Action: Check the three phase input voltage, verify L2-05 for 515/G5 units.
Possible Cause(s): External load connected pulling down the inverter power supplies.
Corrective Action: Repair or replace the power/gate drive board.
Fault Codes
Major Fault - Motor coasts to a stop, the fault is displayed on the digital
operator, and the fault relay is activated.
PP.P5G5.03.Troubleshoot
Page 5
Rev. 06/11/2003
The pre-charge contactor opened while the inverter is
running.
UV3
MC Answerback Uu3
Overvoltage of the main circuit when running.
230V Units - trip point 400V DC or more.
460V Units - trip point 800V DC or more.
600V Units - trip point 1050V DC or more.
OV
DC Bus Overvolt ou
This fault only applies to 230V units 18kW ~ 75kW , 460V units 22kW ~ 160kW and
600V units 30kW ~ 160kW .
Possible Cause(s): Contacts on contactor are dirty, contactor does not function mechanically.
Corrective Action: Check the contactor, check the ribbon cable from the control board to the
gate drive board.
Possible Cause(s): High input voltage at L1, L2, and L3. The deceleration time is set too
short. Power factor correction capacitors are being used on the input to the inverter.
Corrective Action: Check the input circuit, verify the program parameters, add a braking
resistor, remove the power factor correction capacitors.
505
Fault Codes
Major Fault - Motor coasts to a stop, the fault is displayed on the digital
operator, and the fault relay is activated.
506 √515 √
PP.P5G5.03.Troubleshoot
Page 6
Rev. 06/11/2003
Designed to protect the inverter.
Output current has exceeded OC level of the inverter
rated value instantaneously.
OC
Over current oc
Designed to protect the inverter.
Inverter output grounding current has exceeded 50%
of the inverter rated current.
GF
Ground Fault gf
Possible Cause(s): Shorted inverter output phase to phase, shorted motor, locked rotor.
Corrective Action: Remove the motor and run the inverter without the motor. Check the
motor for a phase to phase short. Check the inverter for a phase to phase short at the output.
Possible Cause(s): Motor lead shorted to ground, DCCT defective.
Corrective Action: Remove the motor and run the inverter without the motor. Check the
motor for a phase to ground short. Check the output current with a clamp on meter to verify the
DCCT reading.
505
Fault Codes
Major Fault - Motor coasts to a stop, the fault is displayed on the digital
operator, and the fault relay is activated.
OC – 200%
20P4 – 2015
40P4 – 4015
51P5 - 5160
OC – 180%
2018 – 2075
4018 – 4160
506 √515 √
PP.P5G5.03.Troubleshoot
Page 7
Rev. 06/11/2003
The inverter output is short-circuited.
SC
Short Circuit sc
Detects if the DC bus fuse has opened.
PUF
DC Bus Fuse Open PUf
Possible Cause(s): Shorted output transistor, shorted main circuit component.
Corrective Action: Remove power from the inverter and disconnect the motor. Perform the
checks without/with power starting on page 10. Replace the shorted component(s), then
replace the defective fuse.
505
Possible Cause(s): Shorted inverter output phase to phase, shorted motor, locked rotor.
Corrective Action: Remove the motor and run the inverter without the motor. Check the
motor for a phase to phase short. Check the inverter for a phase to phase short at the output.
Fault Codes
Major Fault - Motor coasts to a stop, the fault is displayed on the digital
operator, and the fault relay is activated.
506 √515 √
PP.P5G5.03.Troubleshoot
Page 8
Rev. 06/11/2003
Motor overload, designed to protect the motor.
Fully adjustable from parameter setting (n033 and
n034 for 506/P5 and E1-02 and E2-01 for 515/G5)
A pre-alarm can be selected as a minor fault by using
the multi-function outputs.
OL1
Motor Overloaded ol1
Inverter overload, designed to protect the inverter.
120 or150% of inverter rated current for 1 minute.
515 - 150% for 1 minute
505 and 506 - 120% or 150% depending on drive
capacity and setting parameter n116
OL2
Inv Overloaded ol2
Possible Cause(s): Motor is overloaded.
Corrective Action: Verify the program settings, reduce the load on the motor.
Possible Cause(s): Motor is overloaded.
Corrective Action: Verify the program settings, reduce the load on the motor.
505
Fault Codes
Major Fault - Motor coasts to a stop, the fault is displayed on the digital
operator, and the fault relay is activated.
506 √515 √
PP.P5G5.03.Troubleshoot
Page 9
Rev. 06/11/2003
ol3 Over torque detection function.
A customer programmable current detection. Response
may be selected. A minor fault contact output can be
programmed by using the multi-function outputs.
OL3
Overtorque Det 1
OL4
Overtorque Det 2 N/A Over torque detection function (2).
A customer programmable current detection.
Response may be selected. A minor fault contact
output can be programmed by using the multi-function
outputs.
505
Possible Cause(s): Motor is overloaded.
Corrective Action: Verify the program settings, reduce the load on the motor.
Possible Cause(s): Motor is overloaded.
Corrective Action: Verify the program settings, reduce the load on the motor.
Fault Codes
Major Fault - Motor coasts to a stop, the fault is displayed on the digital
operator, and the fault relay is activated.
506 √515 √
505
506 515 √
PP.P5G5.03.Troubleshoot
Page 10
Rev. 06/11/2003
Inverter input power supply has an open phase.
Large imbalance of input voltage.
PF
Input Pha Loss sp1
Inverter output has an open phase.
LF
Output Pha Loss spo
Possible Cause(s): Open phase on the input of the inverter. Loose terminal screws at
terminals L1, L2, or L3. Program parameters set incorrectly (n083 for 506/P5, L8-05 for 515/G5)
Corrective Action: Tighten the terminal screws, check the input voltage, verify the program
settings.
Possible Cause(s): Open phase on the output of the inverter. Loose terminal screws at
terminals T1, T2, or T3. Program parameters set incorrectly.
Corrective Action: Tighten the terminal screws, check the output voltage, verify the
program settings.
Fault Codes
Major Fault - Motor coasts to a stop, the fault is displayed on the digital
operator, and the fault relay is activated.
505
506 √515 √
506 515 √505
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