Yaskawa AC Drive-L1000E Safety Precautions - Manual (Page 37)

8 Troubleshooting
YASKAWA TOEP YAIL1E 02A YASKAWA AC Drive - L1000E Safety Precautions 37
BB,HBB
bb O
Baseblock
Drive output interrupted as indicated by an external baseblock signal.
Hbb O
Safe Disable Circuit Fault Signal (H1-HC, H2-HC) Release
Both Safe Disable Input channels are open.
HbbF O
Safe Disable Circuit Fault Signal (H1-HC, H2-HC) Release
One Safe Disable channel is open while the other one is closed.
ALARM(RUN)
OV,UV
ov O O
DC Bus Overvoltage
Voltage in the DC bus has exceeded the overvoltage detection level.
• For 200 V class: approximately 410 V
• For 400 V class: approximately 820 V
Uv1 O
DC Bus Undervoltage
One of the following conditions occurred while the drive was running:
• Voltage in the DC bus fell below the undervoltage detection level (L2-05)
• For 200 V class: approximately 190 V
• For 400 V class: approximately 380 V (350 V when E1-01 is less than 400)
Uv2 O
Control Power Supply Voltage Fault
Voltage is too low for the control drive input power.
Uv3 O
Soft-Charge Bypass Circuit Fault
The soft-charge bypass circuit failed.
ALARM(RUN)
OH,OL
oH O O
Heatsink Overheat
The temperature of the heatsink exceeded the overheat pre-alarm level set to L8-02 (90-
100
°C). Default value for L8-02 is determined by drive capacity (o2-04).
OH,OL oH1 O
Heatsink Overheat
The temperature of the heatsink exceeded the drive overheat level. The overheat level is
determined by drive capacity (o2-04).
ALARM(RUN)
OH,OL
oH3 O O
Motor Overheat Alarm (PTC thermistor input)
• The motor overheat signal to analog input terminal A1 or A2 exceeded the alarm
detection level.
• Detection requires multi-function analog input H3-02 or H3-10 be set to “E”.
OH,OL
oH4 O
Motor Overheat Fault (PTC thermistor input)
• The motor overheat signal to analog input terminal A1 or A2 exceeded the fault detection
level.
• Detection requires that multi-function analog input H3-02 or H3-10 = “E”.
oL1 O
Motor Overload
The electronic motor overload protection tripped.
oL2 O
Drive Overload
The thermal sensor of the drive triggered overload protection.
ALARM(RUN)
OH,OL
oL3 O O
Overtorque Detection 1
Drive output current (or torque in OLV, CLV, CLV/PM) was greater than L6-02 for longer
than the time set in L6-03.
oL4 O O
Overtorque Detection 2
Drive output current (or torque in OLV, CLV, CLV/PM) was greater than L6-05 for longer
than the time set in L6-06.
OC,GF,SC,PGO
GF O
Ground Fault
A current short to ground exceeded 50% of rated current on the output side of the drive.
oC O
Overcurrent
Drive sensors have detected an output current greater than the specified overcurrent level.
PGOH,LT
OC,GF,SC,PGO
PGo O O
Encoder Disconnected (for Control Mode with Encoder)
Detected when no encoder signal is received for a time longer than setting in F1-14.
PGoH O O
Encoder Disconnected (detected when using an encoder)
Encoder cable has become disconnected.
JVOP-184
Status Text
ALARM
FAULT
Fault/Alarm
Code <1>
ALM FLT Fault Name/Cause