Table 7.25 Optional hardware
Function I/O Type Details
Breakers > Breaker feedback # > State > Breaker # feedback is
open*
Digital output Continuous
Activated when the breaker is
open.
Breakers > Breaker feedback # > State > Breaker # feedback is
open* is closed*
Digital output Continuous
Activated when the breaker is
closed.
*Note: # represents the external breaker number. Up to four external breakers can be assigned to a controller.
Manually synchronising to an externally controlled shore connection
To close the externally controlled shore connection, the operator must put the system under switchboard control. The operator must
then manually synchronise and afterwards manually close the external breaker.
INFO
For an externally controlled shore connection, the power management system (PMS) does not synchronise the ship busbar
with the shore connection. The PMS does not close the breaker either. Similarly, the PMS does not de-load an externally
controlled shore connection, or open the breaker.
More information
See Breakers, synchronisation and de-loading, Introduction, Regulation required for synchronisation for more
information about synchronising.
Creating a blackout to connect to an externally controlled shore connection
The PMS is designed to never stop the last genset, and to restore power if there is a blackout. To create a blackout and close the
externally controlled shore connection:
1. There must be a digital input with the Power management > Block blackout start function. Activate this digital input.
2. Disconnect all the gensets: Put each GENSET controller under switchboard control, and then open the generator breaker.
• There should now be a blackout.
3. Close the breaker to the externally controlled shore connection.
Alarm
More information
See Power management, Power management alarms, Breaker # feedback position failure for more information about
the alarm.
DESIGNER'S HANDBOOK 4189340911K UK Page 272 of 521
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