Alarm And Error Displays - YASKAWA U1000 Series Technical Manual

 Alarm and Error Displays
Faults

Table 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
Digital Operator Display
LED Operator LCD Operator
Aov Power Supply Overvoltage
AUv Power Supply Undervoltage
bUS Option Communication Error
MEMOBUS/Modbus Communication
CE
Error
CF Control Fault
CoF Current Offset Fault
to
,
CPF00 to CPF24,
to
CPF26 to CPF35, Control Circuit Error
CPF40 to CPF45
,
to
<1> <3>
CPF25 Terminal Board not Connected
Speed Deviation (for Control Mode with
dEv PG and PM Open Loop Vector Control
Mode without PG)
doH Damping Resistor Overheat
dv1 Z Pulse Fault
dv2 Z Pulse Noise Fault Detection
dv3 Inversion Detection
dv4 Inversion Prevention Detection
dv7 Polarity Judge Timeout
, dWAL,
DriveWorksEZ Fault
dWFL
EEPROM Memory DriveWorksEZ Data
dWF1
Error
E5 MECHATROLINK Watchdog Timer Error
YASKAWA ELECTRIC SIEP C710636 03A YASKAWA U1000 Technical Manual
Minor Faults and Alarms on page 309
Table 6.9 Fault Displays (1)
Name Page
LED Operator
312
312
312
312
312
313
313
313
313
313
313
314
314
314
314
314
314
314
6.3 Drive Alarms, Faults, and Errors
for a list of alarm codes.
Digital Operator Display
LCD Operator
EF0 Option Card External Fault
to
EF1 to EF8 External Fault (input terminal S1 to S8)
Err EEPROM Write Error
FAn Fan Fault
FbH Excessive PID Feedback
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
oC Overcurrent
Option Card Connection Error at Option
oFA00
<3>
Port CN5-A
oFA01 Option Card Fault at Option Port CN5-A
to
Option Card Error Occurred at Option Port
oFA02 to oFA06
CN5-A
,
Option Card Error Occurred at Option Port
oFA10, oFA11
CN5-A
to
oFA12 to oFA17 Option Card Connection Error (CN5-A)
to
Comm. Option Card Connection Error
oFA30 to oFA43
(CN5-A)
oFb00 Option Card Fault at Option Port CN5-B
<3>
– –
Name Page
315
315
315
315
315
316
316
316
316
316
317
<2>
317
317
317
318
318
318
318
318
318
– –
307
6