YASKAWA L1000A Technical Manual page 283

Minor Faults and Alarms
■
Refer to Table 6.4 for an overview of possible alarm codes. Conditions such as overvoltages can trip faults and alarms.
It is important to distinguish between faults and alarms to determine the proper corrective actions. When the drive detects
an alarm, the ALM indicator LED blinks and the alarm code display flashes. Most alarms trigger a digital output
programmed for alarm output (H2- = 10). A fault (not an alarm) is present if the ALM LED lights without blinking.
Refer to Faults on page 281
Digital Operator Display
LED Operator LCD Operator
AEr
bb
boL
bUS
CALL
CE
CrST
dEv
EF
EF0
EF3 to EF8
to
Hbb
<1>
HbbF
<1>
HCA
LT-1
LT-2
LT-3
LT-4
oH
oH3
oL3
oL4
oS
ov
PASS
PGo
PGoH
SE
TrPC
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
for information on fault codes.
Table 6.4 Minor Fault and Alarm Displays
Name
Node ID Setting Error (CANopen)
Drive Baseblock
Braking Transistor Overload
Option Communication Error
Serial Communication Stand By
MEMOBUS/Modbus Communication Error
Cannot Reset
Speed Deviation (for Control Mode with Encoder)
Up/Down Command Error
Option Card External Fault
External Fault (input terminal S3 to S8)
Safe Disable Circuit Fault Signal (H1-HC, H2-HC) Release
Safe Disable Circuit Fault Signal (H1-HC, H2-HC) Release
High Current Alarm
Cooling Fan Maintenance Time
Capacitor Maintenance Time
Soft Charge Bypass Relay Maintenance Time
IGBT Maintenance Time (90%)
Heatsink Overheat
Motor Overheat Alarm (PTC thermistor input)
Overtorque Detection 1
Overtorque Detection 2
Overspeed (for Control Mode with Encoder)
DC Bus Overvoltage
MEMOBUS/Modbus Comm. Test Mode Complete
Encoder Disconnected (for Control Mode with Encoder)
Encoder Disconnected (when using an encoder)
MEMOBUS/Modbus Self Test Failed
IGBT Maintenance Time (90%)
6.2 Drive Alarms, Faults, and Errors
Minor Fault Output
(H2- = 10)
YES
No output
YES
YES
YES
YES
YES
YES
YES
YES
YES
L8-88 = 0: YES
L8-88 = 1: No (default)
L8-88 = 0: YES
L8-88 = 1: No (default)
YES
No output
<2>
No output
<2>
No output
<2>
No output
<2>
YES
YES
YES
YES
YES
YES
No output
YES
YES
YES
YES
Page
299
299
299
299
299
300
300
300
300
300
300
301
301
301
301
301
301
301
302
302
302
6
302
302
303
303
303
303
303
303
283