Fire Alarm Control Panels - Bosch Security Systems

36 en | System Operation Fire Alarm Control Panels66.16.1.16.1.2System OperationModes of OperationThere are four modes of system operation for the FPD‐7024: normal, alarm, supervisory, andtrouble.NormalWhen the system operates normally, it shows SYSTEM NORMAL on the top line of the display,the Power LED lights steadily, and no other LEDs are lit. The bottom line indicates the existingdate MM/DD/YY and time HH:MM. If the system is programmed to require a PIN, the secondline of the LCD screen shows ENTER PIN.Off-normal DisplaysControl panel alarms and problems are indicated on the top line of the display. Contact yourinstalling company if problems persist.For the alarm/problem messages, see the following table:Off-Normal DisplayXXX/XXX FIR: XXXXXXXX/XXX SUP: XXXXXXXX/XXX TRB: XXXXXDescriptionOne or more fire or waterflow points are in alarm.One or more supervisory conditions exist.A trouble condition exists (AC power failure, phone linetrouble, and so on).Table 6.1: Off-normal displays6.1.36.1.46.1.5AcknowledgeWhen the control panel is off-normal, the control panel’s piezo (buzzer) can be silencedwithout silencing the NACs or resetting the control panel. Press the [ACK] button on the localor remote keypad to silence only the piezo.AlarmWhen an alarm occurs, the top line shows the number of alarms and the point that is in alarm.The bottom line alternates between the instructions and the programmed description for theaffected point. When you back out of the detail view and go to the group view by pushing the[4/