YASKAWA L1000A Quick Start Manual page 137

Digital Operator Display
PGoH
<2>
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
Motor Overload
oL1
The electronic motor overload protection tripped.
Drive Overload
oL2
The thermal sensor of the drive triggered overload protection.
Overtorque Detection 1
oL3
The current has exceeded the value set for torque detection (L6-02) for longer than the allowable
time (L6-03).
Overtorque Detection 2
oL4
The current has exceeded the value set for Overtorque Detection 2 (L6-05) for longer than the
allowable time (L6-06).
External Digital Operator Connection Fault
• The external operator has been disconnected from the drive.
Note:
oPr
An oPr fault will occur when all of the following conditions are true:
 Output is interrupted when the operator is disconnected (o2-06 = 1).
 The Up/Down command is assigned to the operator (b1-02 = 0 and LOCAL has been selected).
Overspeed
oS
The motor speed feedback exceeded the F1-08 setting.
DC Bus Overvoltage
Voltage in the DC bus has exceeded the overvoltage detection level.
ov
• For 200 V class: approximately 410 V
• For 400 V class: approximately 820 V
• For 600 V class: approximately 1040 V
Input Phase Loss
PF
Drive input power has an open phase or has a large imbalance of voltage between phases. Detected
when L8-05 = 1, 2, 3 (enabled).
PF5
Rescue Operation Power Supply Deterioration Error
Encoder Disconnected (for Control Mode with Encoder)
PGo
No encoder pulses are received for longer than the time set to F1-14.
Encoder Disconnected (detected when using an encoder)
Encoder cable is not connected properly.
Braking Resistor Fault
rF
The resistance of the braking resistor being used is too low.
Dynamic Braking Transistor Fault
rr
The built-in dynamic braking transistor failed.
IGBT Short Circuit
SC
Short Circuit or Ground Fault is detected
Safety Circuit Fault
SCF
Safety Circuit Fault is detected.
Motor Contactor Response Error
SE1
Motor contactor does not respond within the time set to S1-10 (Run Command Delay Time).
Starting Current Error
SE2
The output current was lower than 25% of the motor no-load current at start.
Output Current Error
SE3
The output current was lower than 25% of the motor no-load current during operation.
Brake Feedback Error
The input terminal set for "Brake feedback" (H1- = 79) or "Brake feedback 2" (H1- = 5B)
SE4
did not respond within the SE4 error time set to S6-05 after an output terminal set for "Brake
release" (H2- = 50) closed.
Position Lock Error
SvE
Position deviation during Position Lock.
5 Troubleshooting
Fault Name
5
135