Tie circuit breaker, Load 1 - normal, Load 1 - on system 2 – Liebert Series 610 User Manual
Page 25: Load 1 - systems tied, Load 1 - off, Load 2 - normal, Load 2 - on system 1, Load 2 - systems tied, Load 2 - off, Control status - synchronizing
Control Panel Description
21
Tie Circuit Breaker
These two lights indicate the OPEN (Red light) or CLOSED (Green light) state of the Tie circuit
breaker.
Load 1 - Normal
This light indicates that Load 1 is being supplied by UPS System 1. Load 1 supplied by UPS system 1
represents the normal operating mode.
Load 1 - On System 2
This light indicates that Load 1 is being supplied by UPS System 2 through the Tie circuit breaker.
Load 1 - Systems Tied
This light indicates that Load 1 is being supplied by both UPS Systems which share the combined
loads.
Load 1 - Off
This light indicates that Load 1 is isolated from both UPS Systems.
Load 2 - Normal
This light indicates that Load 2 is being supplied by UPS System 2. Load 2 supplied by UPS system 2
represents the normal operating mode
Load 2 - On System 1
This light indicates that Load 2 is being supplied by UPS System 1 through the Tie circuit breaker.
Load 2 - Systems Tied
This light indicates that Load 2 is being supplied by both UPS Systems which share the combined
loads.
Load 2 - Off
This light indicates that Load 2 is isolated from both UPS Systems.
Control Status - Synchronizing
This light indicates that the UPS Systems are currently synchronizing to the selected bypass line.
Control Status - Transferring
This light indicates that the controls are transferring a load from one system to the other system.
3.2
Load Transfer Controls
This section of the control panel gives indications and allows control of load transfers between the
UPS Systems.
OK to Transfer Load 1 to System 1
This light indicates that it is safe to transfer Load 1 from UPS System 2 to UPS System 1. The trans-
fer occurs when the PUSH TO TRANSFER AFTER OK button is pressed, but only if this light is on.
OK to Transfer Load 1 to System 2
This light indicates that it is safe to transfer Load 1 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.
OK to Transfer Load 2 to System 1
This light indicates that it is safe to transfer Load 2 from UPS System 2 to UPS System 1. The trans-
fer occurs when the PUSH TO TRANSFER AFTER OK button is pressed, but only if this light is on.