YASKAWA A1000

6.3 Drive Alarms, Faults, and Errors
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 333
Troubleshooting
6
 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 bet
ween 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 331.
Table 6.11 Minor Fault and Alarm Displays
Digital Operator Display
Name
Minor Fault Output
(H2- = 10)
Page
LED Operator LCD Operator
AEr Station Address Setting Error (CC-Link, CANopen, MECHATROLINK) YES 350
bb Baseblock No output 350
boL Braking Transistor Overload Fault YES 350
bUS Option Communication Error YES 350
CALL Serial Communication Transmission Error YES 351
CE MEMOBUS/Modbus Communication Error YES 351
CrST Cannot Reset YES 351
CyC MECHATROLINK Comm. Cycle Setting Error YES 351
dEv
Speed Deviation (when using a PG option card and PM Open Loop Vector Control
M
ode without PG)
YES 351
dnE Drive Disabled YES 351
dWAL DriveWorksEZ Fault YES 339
E5 MECHATROLINK Watchdog Timer Error YES 340
EF Forward/Reverse Run Command Input Error YES 352
EF0 Option Card External Fault YES 352
to
EF1 to EF8 External Fault (input terminal S1 to S8) YES 352
FAn Internal Fan Fault YES 340
FbH Excessive PID Feedback YES 352
FbL PID Feedback Loss YES 353
Hbb Safe Disable Signal Input YES 353
HbbF Safe Disable Signal Input YES 353
HCA Current Alarm YES 353
LT-1 Cooling Fan Maintenance Time No output
<1> 353
LT-2 Capacitor Maintenance Time No output
<1> 353
LT-3 Soft Charge Bypass Re
lay Maintenance Time No output <1> 353
LT-4 IGBT Maintenance Time (50%) No output
<1> 354
oH Heatsink Overheat YES 354
oH2 Drive Overheat Warning YES 354
oH3 Motor Overheat YES 354
<2>
oH5 Motor Overheat (NTC Input) YES 354
oL3 Overtorque 1 YES 354
oL4 Overtorque 2 YES
354
oL5 Mechanical Weakening Detection 1 YES 355