Troubleshooting - YASKAWA Z1000 Quick Start Manual

i.6 Troubleshooting
i.6

Troubleshooting

Refer to the Z1000 AC Drive User Manual TOEP C710616 45 for detailed information on Troubleshooting and complete
product instructions necessary for proper installation, set-up, troubleshooting and maintenance.
The Z1000 AC Drive User Manual is posted on the Yaskawa website, www.yaskawa.com.
u
Fault Detection
n Fault Displays
A fault is indicated by a code on the data display and the ALM LED is on. The drive output is always switched off immediately
and the motor coast to stop.
To reset a fault, trace and remove the cause, and push the Reset key on the keypad or cycle the power supply.
Refer to the User Manual for a complete list of causes and possible solutions.
HOA
Keypad
Display
bAT HOA Keypad Battery Voltage Low
Option Communication Error
• The connection was lost after establishing initial
bUS
communication.
• Only detected when the run command frequency
reference is assigned to an option card.
MEMOBUS/Modbus Communication Error
CE
Control data was not received for the CE detection time set
to H5-09.
Current Offset Fault
Drive starts operation while the current-detection circuit
CoF
failure, or the induced voltage remains in the motor
(coasting and after rapid deceleration).
CPF00,
CPF01
Control Circuit Error
<1>
A/D Conversion Error
CPF02
An A/D conversion error or control circuit error occurred.
Control Board Connection Error
CPF03
Connection error between the control board and the drive.
EEPROM Memory Data Error
CPF06
There is an error in the data saved to EEPROM.
CPF07,
Terminal Board Connection Error
CPF08
CPF20,
CPF21
Control Circuit Error
<2>
CPF22 Hybrid IC Failure
Control Board Connection Error
CPF23
Connection error between the control board and the drive.
Drive Unit Signal Fault
CPF24
The drive capacity cannot be detected correctly (Drive
capacity is checked when the drive is powered up).
Terminal Board Error
CPF46
A terminal board that is not supported has been installed in
the drive.
62
NOTICE
Table i.28 Fault Displays
Name
YASKAWA ELECTRIC TOEP C710616 54A YASKAWA AC Drive - Z1000 Quick Start Guide
HOA
Keypad
Display
Option Card External Fault
EF0
An external fault condition is present.
External Fault (input terminal S1 to S7)
EF1 to EF7
External fault at multi-function input terminal S1 to S7.
EEPROM Write Error
Err
Data cannot be written to the EEPROM
Internal Fan fault
FAn
Fan or magnetic contactor failure
External Fan fault
Fn1
External fan failure
Excessive PI Feedback
PI feedback input is greater than the level set to b5-36 for
FbH
longer than the time set to b5-37. Set b5-12 to 2 or 5 to
enable fault detection.
PI Feedback Loss
This fault occurs when PI feedback loss detection is
FbL
programmed to trigger a fault (b5-12 = 2) and the PI
feedback level is below the detection level set to b5-13 for
longer than the time set to b5-14.
Ground Fault
• A current short to ground exceeded 50% of rated current
on the output side of the drive.
GF
• Setting L8-09 to 1 enables ground fault detection in
models 2A0075 to 2A0396, 4A0052ooA, and 4A0065
to 4A0590.
Output Phase Loss
LF
• Phase loss on the output side of the drive.
• Setting L8-07 to 1 or 2 enables Phase Loss Detection.
Output Current Imbalance
LF2
One or more of the phases in the output current are lost.
Node Setup Error
nSE
A terminal assigned to the node setup function closed
during run.
Overcurrent
oC
Drive sensors detected an output current greater than the
specified overcurrent level.
Name