Preventing Noise Interference - YASKAWA L1000A CIMR-LC F Series Technical Manual Addendum

Code Name
dv4 Inversion Prevention Detection
oFA00 Option Not Compatible with Port
oFb00 Option Not Compatible with Port
oFC50 to Option Card Error Occurred at
oFC55 Option Port CN5-C
oS Overspeed
PGo Encoder (PG) Feedback Loss
PGoH Encoder (PG) Hardware Fault
oPE02 Parameter Range Setting Error
oPE06 Control Method Selection Error
■

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.
YASKAWA TOEPC710616134G AC Drive L1000A Technical Manual Addendum
Causes
Noise interference along the encoder cable.
The encoder cable is disconnected or incorrectly
wired.
The setting for F1-05 [Enc1 Rotat Selection] is the
opposite of the direction of motor rotation.
The PG option card or the encoder on the motor
side is damaged.
An external force on the load side moved the motor.
E5-11 [Enc ZPulse Offset] is set incorrectly.
There is a new encoder or the motor rotation
direction changed.
Noise interference along the encoder cable
The encoder cable is disconnected or incorrectly
wired.
The PG option card or the encoder on the motor
side is damaged.
The option card connected to connector CN5-A is
not compatible.
The option card connected to connector CN5-B is
not compatible.
A fault occurred in the option card.
There is overshoot.
There is an incorrect number of PG pulses set in the
drive.
The oS detection level is set incorrectly.
The encoder cable is disconnected or wired
incorrectly.
The encoder is not receiving power.
The holding brake is stopping the motor.
The encoder cable is disconnected.
Parameters settings are not in the applicable setting
range.
Set E2-01 ≤ E2-03 [Mot Rated Current (FLA) ≤
Mot No-Load Current].
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.
Possible Solutions
Correctly ground the shielded wire of the encoder cable.
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
Correctly connect the motor wiring for each phase (U, V, W).
Repair the wiring and re-energize the drive, then replace the PG
option card or the encoder if the problem continues.
• 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].
Correctly set the value for Δθ to E5-11 as specified by the values
on the motor nameplate.
Do Z Pulse Offset Tuning.
Correctly ground the shielded wire of the encoder cable.
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
Repair the wiring and re-energize the drive, then replace the PG
option card or the encoder if the problem continues.
Connect the option card to the correct connector.
Note:
Encoder option cards are not compatible with connector CN5-
A.
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.
Refer to the manual for the PG-RT3 or PG-F3 option card.
• 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 .
Set H6-02 [] to the pulse train frequency during 100% reference
(maximum motor rotation speed).
Adjust F1-08 [Overspeed Level] and F1-09 [Overspeed Delay
Time].
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
Examine the encoder power supply.
Release the holding brake.
Connect all encoder cable wires.
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.
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.
• Connect an encoder option card to the drive.
• Set A1-02 correctly.
14 BiSS
EN
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