YASKAWA FP65U T Series User Manual

20 Troubleshooting
YASKAWA TOEPC7106171FD FP605 DRIVE INSTALLATION & PRIMARY OPERATION 117
Code Name Causes Possible Solutions
There is motor hunting. • Adjust n1-02 [Hunting Prevention Gain Setting] settings.
• Adjust n8-45 [Speed Feedback Detection Gain] and n8-47 [Pull-
in Current Comp Filter Time] settings.
Speed search does not complete at start when you use
an induction motor in EZOLV control.
When E9-01 = 0 [Motor Type Selection = Induction (IM)], set b3-
24 = 2 [Speed Search Method Selection = Current Detection 2].
ov2 DC Bus Overvoltage 2
The wiring is too long and DC bus voltage is too
large.
• Shorten the shielded motor cable.
• Decrease the carrier frequency.
• If the power supply has a neutral ground, switch on the internal
EMC filter.
PE1, PE2 PLC Faults
The communication option detected a fault. Refer to the manual for the communication option card.
PF Input Phase Loss
There is a phase loss in the drive input power. Correct errors with the wiring for main circuit drive input power.
There is loose wiring in the drive input power
terminals.
Tighten the terminal screws to the correct tightening torque.
The drive input power voltage is changing too much. • Examine the input power for problems.
• Make the drive input power stable.
• If the input power supply is good, examine the magnetic
contactor on the main circuit side for problems.
There is unsatisfactory balance between voltage
phases.
• Examine the input power for problems.
• Make the drive input power stable.
• Set L8-05 = 0 [Input Phase Loss Protection Sel = Disabled].
The main circuit capacitors have become
unserviceable.
• Examine the capacitor maintenance time in monitor U4-05
[CapacitorMaintenance]. If U4-05 is more than 90%, replace the
control board or the drive. For information about replacing the
control board, contact Yaskawa or your nearest sales
representative.
• If drive input power is correct and the fault stays, replace the
control board or the drive. For information about replacing the
control board, contact Yaskawa or your nearest sales
representative.
PSE JOHB-SMP3 Protocol Set Error
• The DIP switches on the JOHB-SMP3 Multi-
Protocol Ethernet Card are at factory default
settings.
• The DIP switches on the JOHB-SMP3 are not set
to a valid protocol.
Remove power from the drive, wait for the charge light to go out,
then set the DIP switches on the JOHB-SMP3 to the desired
protocol.
Note:
• Refer to the instructions packaged with the JOHB-SMP3 for
more information about DIP switch settings.
• “PSE” error occurs only for PRG: 01012 and later, and only
when DIP switches are at their factory default setting.
The “PRG” column on the nameplate on the right side of the
drive identifies the software version. You can also use U1-25
[SoftwareNumber FLASH] to identify the software version.
SC Short Circuit/IGBT Failure
Overheating caused damage to the motor or the motor
insulation is not satisfactory.
Measure the motor insulation resistance, and replace the motor if
there is electrical conduction or unserviceable insulation.
SCF Safety Circuit Fault
The safety circuit is broken. • Make sure that you ground the drive correctly and re-energize the
drive.
• If the fault stays, replace the control board or the drive. For
information about replacing the control board, contact Yaskawa
or your nearest sales representative.
SEr Speed Search Retries Exceeded
The speed search-related parameters are set
incorrectly.
• Decrease b3-10 [Speed Estimation Detection Gain].
• Increase b3-17 [Speed Est Retry Current Level].
• Increase b3-18 [Speed Est Retry Detection Time].
• Do Auto-Tuning again.
SPCNR Single Phase Converter Not Ready
When YC-14 = 0 [Behavior when SPC is Not Ready
= Coast to Stop - Fault], the digital input set to H1-xx
= BE [MFDI Function Selection = Single Phase
Converter Ready NC] deactivated to show the
attached converter is faulted or not ready.
• Examine the wiring between the drive and converter.
• Examine the error code on converter.
STPo Motor Step-Out Detected
The motor code is set incorrectly for PM Control
Methods.
• Set E5-01 [PM Motor Code Selection] correctly as specified by
the motor.
• For specialized motors, refer to the motor test report and set E5-
xx correctly.
TiM Keypad Time Not Set
There is a battery in the keypad, but the date and time
are not set.
Use the keypad to set the date and time.
UL3 Undertorque Detection 1
A fault occurred on the machine.
Example: There is a broken pulley belt.
Examine the machine and remove the cause of the fault.
UL4 Undertorque Detection 2
A fault occurred on the machine.
Example: There is a broken pulley belt.
Examine the machine and remove the cause of the fault.

YASKAWA FP65U T Series Specifications

General

Brand	YASKAWA
Model	FP65U T Series
Category	DC Drives
Language	English