Configuration of the Xanbus AGS
Gen Cool Down
Purpose The Gen Cool Down setting allows an interval to be set between a generator stop trigger occurring and the AGS actually stopping the generator. This setting is used in Freedom SW system to unload the generator before the AGS shuts it down. When a stop trigger occurs, the AGS enters a Generator cool down state where it continues to run the generator for the specified time period. At the same time the Freedom SW Series Inverter/Charger will disconnect the generator when it detects the AGS in Generator Cool Down, allowing the generator operate unloaded and cool down before it is shut down.
This helps improves reliability of the generator by reducing temperature peaking due to abrupt shut down of a loaded generator. It also reduces the probability of the generator backfiring that typically happens when the generator is abruptly shutdown while under heavy load. Gen Cool Down applies to all stop triggers namely Stop V, Stop Load, Stop Float, Stop Absorb, Stop Load, and Manual Off.
Values | Default |
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1s to 90s (increments of 1s) | 30s |
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When to use This setting is automatically configured when a “Gen Type” is selected for the generator. Customize the “Gen Cool Down” trigger on the advice of the generator manufacturer or authorized service personnel.
Gen Spin Down
Purpose The Gen Spin Down setting allows an interval to be set between a generator stop signal being sent at the end of a Gen Cool Down cycle and the AGS changing the Generator State to “stopped.” This setting is used in the Freedom SW System to allow the generator to completely stop, thereby reducing its output voltage to zero and pulling the B+ signal low before the Freedom SW Series Inverter/Charger can qualify and transfer AC power.
This helps the system operate properly in cases where the generator does not immediately stop when the stop signal is sent to the AGS. Gen Spin Down applies to all stop
Values | Default |
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1s to 900s (increments of 1s) | 3s |
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When to use This setting is automatically configured when a “Gen Type” is selected for the generator. Customize the “Gen Spin Down” trigger on the advice of the generator manufacturer or authorized service personnel.
54 | Xanbus Automatic Generator Start (AGS) Owner’s Guide |
