Control Panel Description
OK to Transfer Load 2 to System 2
This light indicates that it is safe to transfer Load 2 from UPS System 1 to UPS System 2. The trans- fer occurs when the PUSH TO TRANSFER AFTER OK button is pressed, but only if this light is on.
Transfer Control Disabled
This light indicates that load transfers are not allowed because the systems are currently being put in parallel operation.
Transfer Function Available
The Transfer Function Available lights indicate the transfer options the operator has available based on the current system configuration.
Transfer Function Available - OK to Transfer Load 1 to System 1
This light indicates that the systems are in a configuration where a transfer of load 1 from UPS Sys- tem 2 to UPS System 1 can be attempted.
Transfer Function Available - OK to Transfer Load 1 to System 2
This light indicates that the systems are in a configuration where a transfer of load 1 from the UPS System 1 to UPS System 2 can be attempted.
Transfer Function Available - OK to Transfer Load 2 to System 1
This light indicates that the systems are in a configuration where a transfer of load 2 from UPS Sys- tem 2 to UPS System 1 can be attempted.
Transfer Function Available - OK to Transfer Load 2 to System 1
This light indicates that the systems are in a configuration where a transfer of load 2 from UPS Sys- tem 1 to UPS System 2 can be attempted.
Transfer Load To - System 1
When this button is pressed, it initiates a sequence to allow a load transfer to UPS System 1. The transfer to be performed is automatically determined by the current state of the Tie and Load circuit breakers. The button turns on indicating that the sequence is armed. When the control logic deter- mines all conditions for a safe transfer have been met, it turns on the appropriate OK TO TRANSFER light.
Transfer Load To - System 2
When this button is pressed it initiates a sequence to allow a load transfer to UPS System 2. The transfer to be performed is automatically determined by the current state of the Tie and Load circuit breakers. The button turns on indicating that the sequence is armed. When the control logic deter- mines that all conditions for a safe transfer have been met, it turns on the appropriate OK TO TRANSFER light.
Push to Transfer After OK
This button starts the transfer after the OK TO TRANSFER light turns on.
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