FM-3 Programming Module Reference Manual

Segment Display

Fault

Action to Reset

Bridge Disabled

FM-3 Display

 

 

 

 

 

 

Max Following Error

Reset Button or Input

Yes

Following Err

 

Line

 

 

 

 

Travel Limit +/-

Auto

No

TravLmtMinus

TravLmtPlus

All "On"

Normally on for one

second during power up

Yes

FM-3

** Fault **

***** Depend on Fault

Fault Descriptions

Flash Invalid

This fault indicates that the firmware checksum has failed. Use the Tools Program Flash menu item from PowerTools 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 during an upgrade process).

Watchdog Timer

The watchdog timer ensures that the firmware is operating normally. If the firmware fails to reset this timer every 10 ms, the drive hardware will be reset, all inputs and outputs will be cleared (“Off”), and a Watchdog Timer fault is generated.

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.

228

Page 242
Image 242
Emerson FM-3 manual Fault Descriptions, Flash Invalid, Watchdog Timer, Power Up Test, NVM Invalid