OPERATION
Step Sixteen
Duplexing
Control
Operation
Relay 1
Relay 2
Alternating
Control
Operation
Relay 1
Relay 2
Automatic
Empty
Operation
Relay X
Automatic
Fill
Operation
Relay X
Out of
Bounds
Operation
Relay X
Functional Chart for Relay On/Off Operations
Backup
Primary
Stop
Energize
De-Energize
Energize
De-Energize
Backup
Primary
Stop
Energize
De-Energize
Energize
De-Energize
Start
Stop
Energize
De-Energize
Stop
Start
Energize
De-Energize
High
Low
Energize
De-Energize