14 BiSS
YASKAWA TOEPC710616134G AC Drive L1000A Technical Manual Addendum 95
Code Name Causes Possible Solutions
Noise interference along the encoder cable. Correctly ground the shielded wire of the encoder cable.
The encoder cable is disconnected or incorrectly
wired.
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
The setting for F1-05 [Enc1 Rotat Selection] is the
opposite of the direction of motor rotation.
Correctly connect the motor wiring for each phase (U, V, W).
The PG option card or the encoder on the motor
side is damaged.
Repair the wiring and re-energize the drive, then replace the PG
option card or the encoder if the problem continues.
dv4 Inversion Prevention Detection
An external force on the load side moved the motor. • Make sure that the motor is rotating in the correct direction.
• Find and repair problems on the load side that cause the motor
to rotate from the load side.
• Disable detection of this fault for applications that rotate the
motor from the load side in the opposite direction of the speed
reference. The drive will not detect this fault if F1-19 = 0
[Dev4 Mode Selection = Disabled].
E5-11 [Enc ZPulse Offset] is set incorrectly. Correctly set the value for Δθ to E5-11 as specified by the values
on the motor nameplate.
There is a new encoder or the motor rotation
direction changed.
Do Z Pulse Offset Tuning.
Noise interference along the encoder cable Correctly ground the shielded wire of the encoder cable.
The encoder cable is disconnected or incorrectly
wired.
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
The PG option card or the encoder on the motor
side is damaged.
Repair the wiring and re-energize the drive, then replace the PG
option card or the encoder if the problem continues.
oFA00 Option Not Compatible with Port
The option card connected to connector CN5-A is
not compatible.
Connect the option card to the correct connector.
Note:
Encoder option cards are not compatible with connector CN5-
A.
oFb00 Option Not Compatible with Port
The option card connected to connector CN5-B is
not compatible.
Connect the option card to the correct connector.
Note:
DO-A3, AO-A3, PG-B3, and PG-X3 options can connect to
connector CN5-B. Use connector CN5-C when connecting
only one encoder option card.
oFC50 to
oFC55
Option Card Error Occurred at
Option Port CN5-C
A fault occurred in the option card. Refer to the manual for the PG-RT3 or PG-F3 option card.
oS Overspeed
There is overshoot. • Decrease C5-01 [ASR PGain 1] and increase C5-02 [ASR
ITime 1].
• Adjust the pulse train gain with Pulse Train Input Setting
Parameters H6-02 to H6-05 .
There is an incorrect number of PG pulses set in the
drive.
Set H6-02 [] to the pulse train frequency during 100% reference
(maximum motor rotation speed).
The oS detection level is set incorrectly. Adjust F1-08 [Overspeed Level] and F1-09 [Overspeed Delay
Time].
PGo Encoder (PG) Feedback Loss
The encoder cable is disconnected or wired
incorrectly.
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
The encoder is not receiving power. Examine the encoder power supply.
The holding brake is stopping the motor. Release the holding brake.
PGoH Encoder (PG) Hardware Fault
The encoder cable is disconnected. Connect all encoder cable wires.
oPE02 Parameter Range Setting Error
Parameters settings are not in the applicable setting
range.
1. Push to show U1-18 [oPE Fault Parameter], and find
parameters that are not in the applicable setting range.
2. Correct the parameter settings.
Note:
If more than one error occurs at the same time, other oPExx
errors have priority over oPE02.
Set E2-01 ≤ E2-03 [Mot Rated Current (FLA) ≤
Mot No-Load Current].
Make sure that E2-01 > E2-03.
Note:
If it is necessary to set E2-01 < E2-03, first lower the value
set in E2-03, and then set E2-01.
oPE06 Control Method Selection Error
A1-02 = 1, 3, or 7 [ = CL-V/f, CLV, CLV/PM] is set,
but there is no encoder option card connected to the
drive.
• Connect an encoder option card to the drive.
• Set A1-02 correctly.
■ Preventing Noise Interference
Take the following steps to prevent erroneous operation caused by noise interference:
• Use shielded wire for the PG encoder signal lines.
• Limit the length of all motor output power cables to less than 20 m.
EN
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