6.3 Drive Alarms, Faults, and Errors
302
YASKAWA ELECTRIC
SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Table 6.10 Fault Displays (2)
■
Minor Faults and Alarms
Table 6.11
give an overview of possible alarm codes. As conditions such as overvoltage can trip both a fault and alarm, it
is important to distinguish between faults and alarms in order to find the right corrective action.
If an alarm is detected, the ALM LED will blink and the alarm code display flashes. The majority of alarms will trigger a
digital output programmed for alarm output (H2-
= 10). If the ALM LED lights without blinking, this means that a
fault has been detected (not an alarm). Information on fault codes can be found in
Faults on page 301
.
Table 6.11 Minor Fault and Alarm Displays
Digital Operator Display
Name
Page
Digital Operator Display
Name
Page
LED Operator
LCD Operator
LED Operator
LCD Operator
,
<1> Displayed as
or
when occurring at drive power up. When one of the faults occurs after successfully starting the drive, the
display will show
or
.
oFC03, oFC11
Option Card Error (CN5-C)
313
ov
Overvoltage
315
PF
Input Phase Loss
316
to
oFC12 to oFC17 Option Card Connection Error (CN5-C)
313
PGo
PG Disconnect (for Control Mode with PG)
316
PGoH
PG Hardware Fault (when using PG-X3)
316
to
oFC30 to
oFC43
Option Card Fault (CN5-C)
313
rF
Braking Resistor Fault
316
rH
Dynamic Braking Resistor
316
oH
Heatsink Overheat
313
rr
Dynamic Braking Transistor
316
oH1
Heatsink Overheat
313
SEr
Too Many Speed Search Restarts
316
oH3
Motor Overheat 1 (PTC input)
313
STo
Pull-Out Detection
317
oH4
Motor Overheat 2 (PTC input)
313
SvE
Zero-Servo Fault
317
oL1
Motor Overload
314
UL3
Undertorque Detection 1
317
oL2
Drive Overload
314
UL4
Undertorque Detection 2
317
oL3
Overtorque Detection 1
314
UL5
Mechanical Weakening Detection 2
317
oL4
Overtorque Detection 2
314
Uv1
Undervoltage
317
oL5
Mechanical Weakening Detection 1
314
Uv2
Control Power Supply Undervoltage
318
oL7
High Slip Braking oL
315
Uv3
Soft Charge Circuit Fault
318
oPr
Operator Connection Fault
315
voF
Output Voltage Detection Fault
318
oS
Overspeed (for Control Mode with PG)
315
–
–
–
–
Digital Operator Display
Name
Minor Fault Output
(H2-
= 10)
Page
LED Operator
LCD Operator
AEr
SI-T Station Number Setting Error (CC-Link, CANopen, MECHATROLINK-II)
YES
319
bb
Drive Baseblock
No output
319
boL
Braking Transistor Overload Fault
YES
319
bUS
Option Card Communications Error
YES
319
CALL
Serial Communication Transmission Error
YES
319
CE
MEMOBUS/Modbus Communication Error
YES
320
CrST
Cannot Reset
YES
320
dEv
Excessive Speed Deviation (for Control Mode with PG)
YES
320
dnE
Drive Disabled
YES
320
dWAL
DriveWorksEZ Alarm
YES
308