4

Example 5: Role switches allowed on both units Secondary Unit Active

Note: Secondary unit active is not a recommended mode of operation when using the GHS Control Strategy.

 

Primary Unit

Secondary Unit

 

 

 

Role

Backup

Active

 

 

 

Operating Mode

RUN/ENABLED

RUN/ENABLED

 

 

 

OK LED on RCM

ON

ON

 

 

 

LOC_RDY LED on RCM and %S Bit

ON

ON

 

 

 

LOC_ACT LED on RCM and %S Bit

OFF

ON

 

 

 

REM_RDY LED on RCM and %S Bit

ON

ON

 

 

 

REM_ACT LED on RCM and %S Bit

ON

OFF

 

 

 

Example 6: Role switches not allowed on either unit, Secondary Unit Active

Note: Secondary unit active is not a recommended mode of operation when using the GHS Control Strategy.

 

Primary Unit

Secondary Unit

 

 

 

Role

Backup

Active

 

 

 

Operating Mode

RUN/DISABLED

RUN/ENABLED

 

 

 

OK LED on RCM

ON

ON

 

 

 

LOC_RDY LED on RCM and %S Bit

OFF

ON

 

 

 

LOC_ACT LED on RCM and %S Bit

OFF

ON

 

 

 

REM_RDY LED on RCM and %S Bit

ON

OFF

 

 

 

REM_ACT LED on RCM and %S Bit

ON

OFF

 

 

 

Example 7: Role switches allowed on both units, Secondary Unit Active

Note: Secondary unit active is not a recommended mode of operation when using the GHS Control Strategy.

 

Primary Unit

Secondary Unit

 

 

 

Role

Backup

Active

 

 

 

Operating Mode

RUN/DISABLED

RUN/DISABLED

 

 

 

OK LED on RCM

ON

ON

 

 

 

LOC_RDY LED on RCM and %S Bit

OFF

OFF

 

 

 

LOC_ACT LED on RCM and %S Bit

OFF

ON

 

 

 

REM_RDY LED on RCM and %S Bit

OFF

OFF

 

 

 

REM_ACT LED on RCM and %S Bit

ON

OFF

 

 

 

GFK-1527A

Chapter 4 Normal Operation

4-17

Page 56
Image 56
GE 90-70 manual Backup Active