Wärtsilä JOVYSTAR COMPACT L
BAX 5624
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11.3.5 Manual bypass
The manual bypass operation is necessary whenever the UPS functionality is tested, or during
maintenance or repair work.
Picture 30 – Manual bypass for functional checks
Follow the procedures contained in the manual
The sequence of manual bypass switching and return must be carried out with respect to the
procedure indicated in the installation and start-up section. The manufacturer cannot accept
responsibility for damages arising from incorrect operation.
Wiring of the auxiliary contacts
Carry out a proper electrical installation by wiring the auxiliary contacts of the manual bypass
and output isolators to the dedicated terminals on board the UPS. This will allow the control
logic to acquire the status of the switches and guide the operator during the start-up and
manual bypass procedures.
For further information refer to the section "Installation and start-up".
During the manual bypass due to repair or maintenance, the UPS is completely shut down and the
load is directly supplied by the bypass line.
Picture 31 – Manual bypass for repair or maintenance works
