InteliLite4 AMF20 Global Guide
131
Breaker open and cool down (BOC)
The event appears in the Alarm list and is recorded into the history log. It causes immediate opening of the
GCB and then the standard stop sequence with cooling follows. The Gen-set cannot be started again while
there is a BOC alarm in the Alarm list. Activates the output AL COMMON BOC (PAGE 466) as well as the
standard alarm outputs (HORN (PAGE 486) and ALARM (PAGE 469)).
IMPORTANT: In case there is no feedback from breakers configured Breaker open and cool down
will be replaced by shutdown alarm type.
Sensor failure detection (FLS)
If the measured resistance on an analog input exceeds the valid range, a sensor failure will be detected and a
sensor failure message will appear in the Alarm list (page 132). The valid range is defined by the far left (RL)
and far right (RH) points of the sensor characteristic ±12.5% from RH-RL.
Note: Sometimes there can be problem with lower limit of valid range which can be counted as negative
number. In this case the lower limit is set as one half of the RL point of the sensor curve characteristic.
Image 5.27 Sensor failure detection principle
Remote alarm messaging
If the communication plug-in module is connected to the controller, the controller can send SMS messages
(CM-RS232-485 module) and emails (CM2-4G-GPS or CM3-Ethernet modules) at the moment when a new
alarm appears in the Alarm list (page 132) or new event is written in the History log (page 114). The
message will contain a copy of the Alarm list (page 132) or reasons from the History log (page 114). To
enable this function first to check the controller internet connection (Subgroup:TCP/IP Settings (page 354)
for CM3-Ethernet or Subgroup:TCP/IP Settings (page 338)/Subgroup:Cellular Interface (page 333) for
CM2-4G-GPS). Then adjust setpoints Event Message (page 369), Wrn Message (page 370), BOC
Message (page 368) and Sd Message (page 370) to ON. Also enter a valid GSM phone number or email
address to the setpoints Telephone Number 1 (page 350), Telephone Number 2 (page 350), Telephone
Number 3 (page 351), Telephone Number 4 (page 351), Email Address 1 (page 366), Email Address 2
(page 367),Email Address 3 (page 367), and Email Address 4 (page 368).
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