6.3 Drive Alarms, Faults, and Errors
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual 349
◆ Alarm and Error Displays
■ Faults
Tabl e 6 .9 gives an overview of possible fault codes. As conditions such as overvoltage can trip both a fault and an alarm,
it is important to distinguish between faults and alarms in order to find the right corrective action.
When the drive detects a fault, the ALM indicator LEDs lights and the fault code appears on the display. The drive fault
contact MA-MB-MC will be triggered. If the ALM LED blinks and the code appearing on the operator screen is flashes,
then an alarm has been detected. See Minor Faults and Alarms on page 351 for a list of alarm codes.
Table 6.9 Fault Displays (1)
Digital Operator Display
Name Page
Digital Operator Display
Name Page
LED Operator LCD Operator LED Operator LCD Operator
Aov Power Supply Overvoltage
354 EF0 Option Card External Fault 357
AUv Power Supply Undervoltage
354
to
EF1 to EF8 External Fault (input terminal S1 to S8) 357
bUS Option Communication Error 354
CE
MEMOBUS/Modbus Communication
Error
354 Err EEPROM Write Error 357
CF Control Fault 354 FAn Fan Fault 357
CoF Current Offset Fault 355 FbH Excessive PID Feedback 357
to
,
to
,
to
<1> <3>
CPF00 to CPF24,
CPF26 to CPF35,
CPF40 to CPF45
Control Circuit Error 355
FbL PID Feedback Loss 357
Fdv Power Supply Frequency Fault
358
GF Ground Fault 358
LF Output Phase Loss 358
LF2 Output Current Imbalance 358
LSo LSo Fault
<2>
359
nSE Node Setup Error 359
CPF25 Terminal Board not Connected 355 oC Overcurrent 359
dEv
Speed Deviation (for Control Mode with
PG and PM Open Loop Vector Control
Mode without PG)
355
<3>
oFA00
Option Card Connection Error at Option
Port CN5-A
359
oFA01 Option Card Fault at Option Port CN5-A 360
doH Damping Resistor Overheat
355
to
oFA03 to oFA06
Option Card Error Occurred at Option Port
CN5-A
360
dv1 Z Pulse Fault 355
dv2 Z Pulse Noise Fault Detection 356
,
oFA10, oFA11
Option Card Error Occurred at Option Port
CN5-A
360
dv3 Inversion Detection 356
dv4 Inversion Prevention Detection 356
to
oFA12 to oFA17 Option Card Connection Error (CN5-A) 360
dv7 Polarity Judge Timeout 356
,dWAL,
dWFL
DriveWorksEZ Fault 356
to
oFA30 to oFA43
Comm. Option Card Connection Error
(CN5-A)
360
dWF1
EEPROM Memory DriveWorksEZ Data
Error
356
<3>
oFb00 Option Card Fault at Option Port CN5-B 360
E5 MECHATROLINK Watchdog Timer Error 356 –– – –
SIEP_C710636_02B_1_0.book 349 ページ ２０１５年１１月２５日 水曜日 午後４時５６分
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