InteliLite Global Guide
101
Island
operation
Mains voltage and frequency OK Mains Return Delay (page 255) timer
started
Mains return
Mains return Mains failed Island
operation
Mains Return Delay (page 255)
elapsed
GCB CLOSE/OPEN (PAGE 604) off, then
after Transfer Delay (page 256) MCB
CLOSE/OPEN (PAGE 614) on and then
engine stop sequence performed
Mains
operation
Note: Mains failed means mains over/under -voltage, over/under -frequency, voltage asymmetry (preset delay
must elapse)
Note: If during start-up sequence mains returns, then MCB is reclosed with delay MCB Close Delay (page
257)(if opened, depending on MCB Opens On (page 263) setpoint) and start-up sequence is interrupted.
Note: If mains fails during stop procedure (cooling) again, stop sequence is interrupted, MCB opened and GCB
re-closed with Transfer Delay (page 256).
5.5.3 Operating Modes
Selecting the operating mode is done through Left and Right buttons on the front panel or by changing the
Controller mode (page 198) setpoint (from the front panel or remotely).
Note: If this setpoint is configured as password-protected, the correct password must be entered prior to
attempting to change the mode.
Note: The mode cannot be changed if Access Lock input is active.
The following binary inputs can be used to force one respective operating mode independent of the mode
setpoint selection:
Remote OFF (page 564)
Remote TEST (page 565)
Remote MAN (page 563)
Remote AUTO (page 563)
If the respective input is active the controller will change the mode to the respective position according to the
active input. If multiple inputs are active, the mode will be changed according to priorities of the inputs. The
priorities match the order in the list above. If all inputs are deactivated, the mode will return to the original
position given by the setpoint.
OFF
No start of the gen-set is possible .Controller stays in Not ready status and cannot be started any way. The
MCB is closed permanently (MCB Opens On (page 263) = GENRUN) or is open or closed according to
whether the mains is present or not (MCB Opens On (page 263) = MAINSFAIL). No AMF function will be
performed. The buttons MCB , GCB , Start and Stop including the appropriate binary inputs for
external buttons are not active.
IMPORTANT: When engine is running, it is not possible to switch gen-set to OFF mode.
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