Diagnostics and Troubleshooting

Display

Fault

Action to Reset

Bridge Disabled

 

Encoder Hardware

Cycle Power or Cycle

Yes

 

Logic Power

 

 

 

Motor Overtemp

Allow Motor to cool down, Reset Button or Input Line

Yes

RMS Shunt Power

Reset Button or Input Line

Yes

Overspeed

Reset Button or Input Line

Yes

Following Error

(Position mode) (Pulse mode)

Reset Button or Input Line

Yes

Travel Limit +/-

Auto

No

All “On”

Normally "On" for one second during power up

Yes

Fault Descriptions

Flash Invalid

This fault indicates that the firmware checksum has failed. From the Tools menu, Flash Upgrade to reprogram/upgrade the firmware stored in flash memory. If this problem persists, call Control Techniques. A common cause would be an interrupted F/W Flash upgrade (cable disconnected in the middle of an upgrade process).

Drive Overtemp

Indicates the drive IGBT temperature has reached 100ºC (212ºF).

Power Up Test

This fault indicates that the power-up self-test has failed. This fault cannot be reset with the reset command or reset button.

NVM Invalid

At power-up the drive tests the integrity of the non-volatile memory. This fault is generated if the contents of the non-volatile memory are invalid.

Invalid Configuration

Epsilon Only

If this occurs call Technical Support at Control Techniques.

The FM was not on this drive during its previous power-up and it is not known if the setup data in the FM matches the drive and motor to which the FM is now attached.

111

Page 123
Image 123
Emerson P/N 400518-02 manual Fault Descriptions