Overview of Quantum Hot Standby

 

Note: If you turn the key on the Primary unit to transfer, the Hot Standby system

 

ignores your action.

Run Mode

 

 

When the keyswitch is in this position, the controller is active and is either serving

 

as the Primary controller or is capable of taking over the Primary role, if needed.

 

The keyswitch on both Hot Standby modules should be in the Run position at all

 

times. When the Standby controller is in Run mode and the standby indicator is on,

 

it is actively monitoring the status of the system and is ready to take control if the

 

Primary unit fails.

 

 

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840 USE 106 00 January 2003

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Schneider Electric 840 USE 106 0 manual Ignores your action, Run Mode, Primary unit fails