CIMR-UU4A0040AUA Yaskawa

25 HP , Serial U1000 

The U1000 is a compact, total all-in-one solution for ultra-low harmonics and/or full regeneration, and is the ultimate choice for power quality and energy savings. Additionally, the U1000 delivers high flexibility and motor control performance to meet a wide variety of application requirements.

 

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Error codes

 

 

 

 

CPF11 to CPF14 and CPF16 to CPF19

 

Fault name : Control Circuit Error.

Cause1 : There is a self-diagnostic error in the control circuit.

Possible solution : Cycle power to the drive

                           If the problem continues, replace the control board or the entire drive. Contact a DMEB Service technician for help.

Cause2 : Connector on the operator is damaged.

Possible solution : Send your drive to DMEB Service for repair

 

 

FAn

Fault name : Internal Fan Fault

                   Fan or magnetic contactor failure (detected when L8-32=0 to 2)

Cause1 : Internal cooling fan has malfunctioned

Possible solution : Cycle power to the drive

                           Check for fan operation.

                           Verify the cumulative operation time of the fan with monitor U4-03, and verify the cumulative operation time of the fan maintenance timer with U4-04.

                           If the cooler fan has exceeded its performance life or is damaged in any other way, replace the fan.

Cause2: Fault detected in the internal cooling fan or magnetic contactor to the power supply.

Possible solution : Cycle power to the drive

                           If the fault continues to occur, Send your drive to DMEB Service for repair.

                            Contact a DMEB Service technician.

 

 

 

GF

Fault name : Ground Fault

• A current short to ground exceeded 50% of rated current on the output side of the drive.

• Setting L8-09 to 1 enabled ground fault detection.

Cause1 : Motor insulation is damaged.

Possible solution : Check the insulation resistance of the motor.

                            Replace the motor

 

Cause2 : A damaged motor cable is creating a short circuit.

Possible solution : Check the motor cable.

                           Remove the short citcuit and reapply power to the drive.

                           Check the resistance between the cable and the ground terminal.

                           Replace the cable.

Cause3 : Excessive leakage current at the drive output.

Possible solution : Reduce the carrier frequency.

                           Reduce the amount of stray capacitance.

Cause4 : The drive performed a current offset adjustment while the motor was rotating.

Possible solution : The set value exceeds the allowable setting range while the drive automatically adjusts the current offset. This generally only happens when attempting to restart a PM motor that is coasting to stop.

                           Set b3-01 to 1 to enable Speed Search at Start.

                            Perform Speed Search 1 or 2 (H1-            =61 or 62) via one of the external terminals.

                     Note : Speed Searches 1 and 2 are the same when using OLV-PM.

Cause5 : Hardware problem

Possible solution : If the problem continues, replace the control board or the entire drive. Contact us for more informations.

 

 

 

LF

Fault name : Output Phase Loss

• Phase loss on the output side of the drive.

• Setting L8-07 to 1 or 2 enables Phase Loss Detection.

Cause1 : The output cable is dictonnected

Possible solution : Check for wiring errors and properly connect the output cable.

                           Connect the wiring.

Cause2 : The motor winding is damaged

Possible solution : Check the resistance between motor lines

                           Replace the motor if the winding is damaged.

Cause3 : The output terminal is loose

Possible solution :     Apply the tightening torque specified in the manual to fasten the terminals. Refer to Main Circuit Wire Gauges and Tightening Torques on page 129 for details.

 

Cause4 : The rated current of the motor being use is less than 5% of the drive rated current.

Possible solution : Check the drive selection and motor capacities.

Cause5 : An output transistor is damaged.

Possible solution : If the problem continues, replace the control board or the entire drive. Contact DMEB Service for more informations.

Cause6 : A sigle-phase motor is being used.

Possible solution : the drive cannot operate a single phase motor

 

 

 

Ov

Fault name : Control Circuit Overvoltage

Cause1 : Surge voltage present in the drive input power.

Possible solution : Voltage surge can result from a thyristor convertor and a phase advancing capacitor operating on the same drive input power system.

 

Cause2 : Drive input power voltage is too high.

Possible solution : Check the voltage

                           Lower drive input power voltage within the limits listed in the specifications.

 

Cause3 : The capacity of the input power supply is too small

Possible solution : Use a power supply that has at least twice the input capacity of the drive.

 

Cause4 : The input power supply repeatedly turned on and off over a short period of time.

Possible solution : Implement countermeasures so that chattering does not occur for the input power supply.

 

Cause5 : An I/O terminal is loose

Possible solution : Check the tightening torque of the I/O terminals.

 

Cause6 : There is a phase loss or an imbalance in the interphase voltages of the input power supply.

Possible solution : Check the status of the input power sypply and eliminate phase losses and imbalance.