YASKAWA A1000 Technical Manual page 333


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
Digital Operator Display
LED Operator LCD Operator
AEr
bb
boL
bUS
CALL
CE
CrST
CyC
dEv
dnE
dWAL
E5
EF
EF0
EF1 to EF8
to
FAn
FbH
FbL
Hbb
HbbF
HCA
LT-1
LT-2
LT-3
LT-4
oH
oH2
oH3
oH5
<2>
oL3
oL4
oL5
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Table 6.11 Minor Fault and Alarm Displays
Name
Station Address Setting Error (CC-Link, CANopen, MECHATROLINK)
Baseblock
Braking Transistor Overload Fault
Option Communication Error
Serial Communication Transmission Error
MEMOBUS/Modbus Communication Error
Cannot Reset
MECHATROLINK Comm. Cycle Setting Error
Speed Deviation (when using a PG option card and PM Open Loop Vector Control
Mode without PG)
Drive Disabled
DriveWorksEZ Fault
MECHATROLINK Watchdog Timer Error
Forward/Reverse Run Command Input Error
Option Card External Fault
External Fault (input terminal S1 to S8)
Internal Fan Fault
Excessive PID Feedback
PID Feedback Loss
Safe Disable Signal Input
Safe Disable Signal Input
Current Alarm
Cooling Fan Maintenance Time
Capacitor Maintenance Time
Soft Charge Bypass Relay Maintenance Time
IGBT Maintenance Time (50%)
Heatsink Overheat
Drive Overheat Warning
Motor Overheat
Motor Overheat (NTC Input)
Overtorque 1
Overtorque 2
Mechanical Weakening Detection 1
6.3 Drive Alarms, Faults, and Errors
Faults on page 331
Minor Fault Output
(H2- = 10)
YES
No output
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
No output
<1>
No output
<1>
No output
<1>
No output
<1>
YES
YES
YES
YES
YES
YES
YES
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