7 Troubleshooting
EN 28
YASKAWA Europe
TOEP C710606 27A YASKAWA AC Drive - J1000 Quick Start Guide
Operator Programing Errors
An Operator Programming Error (OPE) occurs when an inapplicable parameter is set or an
individual parameter setting is inappropriate. This monitor will display the parameter that is
causing the OPE error.
Heatsink
Overheat
• Surrounding temperature is too high.
• The cooling fan has stopped.
• The heatsink is dirty.
• The airflow to the heatsink is restricted.
Motor
Overload
• The motor load is too heavy.
• The motor is operated at low speed with heavy load.
• Cycle times of accel./ decel. are too short.
• Incorrect motor rated current has been set.
Drive
Overload
• The load is too heavy.
• The drive capacity is too small.
• Too much torque at low speed.
DC
Overvoltage
DC bus voltage rose too high.
• The deceleration time is too short.
• Stall prevention is disabled.
• Braking chopper/ resistor broken
• Too high input voltage.
Input Phase
Loss
• Input voltage drop or phase imbalance.
• One of the input phase is lost.
• Loose wires at the drive input.
DC
Undervoltage
The voltage in the DC bus fell below the undervoltage detection level.
• The power supply failed or one input phase has been lost.
• The power supply is too weak.
DC Charge
Circuit Fault
The charge circuit for the DC bus is broken.
LED Operator
Display
Cause
Corrective Action
oPE01
Drive capacity and value set to o2-04 do not
match.
Correct the value set to o2-04.
oPE02
Parameters were set outside the allowable setting
range.
Set parameters to the proper values.
LED Display ALM FLT
Cause
or
or
