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6.3 Drive Alarms, Faults, and Errors
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
349
T
rou
bl
es
hoot
ing
6
◆
Alarm and Error Displays
■
Faults
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
EF0
Option Card External Fault
AUv
Power Supply Undervoltage
to
EF1 to EF8
External Fault (input terminal S1 to S8)
bUS
Option Communication Error
CE
MEMOBUS/Modbus Communication
Error
Err
EEPROM Write Error
CF
Control Fault
FAn
Fan Fault
CoF
Current Offset Fault
FbH
Excessive PID Feedback
to
,
to
,
to
CPF00 to CPF24,
CPF26 to CPF35,
CPF40 to CPF45
Control Circuit Error
FbL
PID Feedback Loss
Fdv
Power Supply Frequency Fault
GF
Ground Fault
LF
Output Phase Loss
LF2
Output Current Imbalance
LSo
LSo Fault
nSE
Node Setup Error
CPF25
Terminal Board not Connected
oC
Overcurrent
dEv
Speed Deviation (for Control Mode with
PG and PM Open Loop Vector Control
Mode without PG)
oFA00
Option Card Connection Error at Option
Port CN5-A
oFA01
Option Card Fault at Option Port CN5-A
doH
Damping Resistor Overheat
to
oFA03 to oFA06
Option Card Error Occurred at Option Port
CN5-A
dv1
Z Pulse Fault
dv2
Z Pulse Noise Fault Detection
,
oFA10, oFA11
Option Card Error Occurred at Option Port
CN5-A
dv3
Inversion Detection
dv4
Inversion Prevention Detection
to
oFA12 to oFA17 Option Card Connection Error (CN5-A)
dv7
Polarity Judge Timeout
,
dWAL,
dWFL
DriveWorksEZ Fault
to
oFA30 to oFA43
Comm. Option Card Connection Error
(CN5-A)
dWF1
EEPROM Memory DriveWorksEZ Data
Error
oFb00
Option Card Fault at Option Port CN5-B
E5
MECHATROLINK Watchdog Timer Error
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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