G
Generator
breaker
(GB 1)
Diesel generator set 1
Busbar
G
Generator
breaker
(GB 2)
Diesel generator set 2
CANbus
Controller
Display 1
Controller
Display 2
If the CAN error happens when no gensets are running, it will not block the whole system, and it will be possi-
ble to start all the gensets in SEMI-AUTO mode, even though the CAN error has not been fixed.
A message will be shown in the status line "BLACKOUT ENABLE" on the display.
If the CANbus error is present and no generator breakers are closed, it will be possible to
close two breakers on the same busbar, which may result in fatal damage to the whole system.
It is recommended to use the analogue load sharing (option G3) and an interlock system to
prevent this situation.
2. If "No mode change" is selected, all AGC units will stay in the mode they were in before the failure
appeared.
This setting makes it possible to keep the system in auto mode in case of a CAN failure, however, the faulty
unit will not be a part of the power management, since it cannot send or receive status and commands on the
CANbus.
If this selection is used, it is recommended to use the CANbus fail class settings to disconnect the faulty units
(refer to the "CANbus fail class" in this chapter).
8.3.11 CANbus alarm
The following alarms can be displayed on an AGC unit in case of CANbus communication failures:
● CAN ID X(P/S) MISSING
The AGC unit has lost CANbus communication to one or more CAN IDs on CANbus I/F.
AGC 100 Designer's Reference Handbook
4189340766 UK
Power management (AGC 14x only)
DEIF A/S Page 121 of 152
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