FT1-SB System Manual
MA370 Iss. 2
15
4.1.2 Wiring
The wiring of FT1-SB must be carries out according to the block wiring diagram shown in
4.1.3 Visual inspection
Full functional testing and visual check is carried out in the factory for FT1-SB before delivery. Upon
completion of installation and prior to applying power, a visual inspection should be carried out to
ensure:
•
All detectors are connected with the correct polarity.
•
End of Line resistor 3K9 is fitted in the last detector or MCP in the zone circuit.
•
Where the supervised output is used, the end of line resistor 47K is fitted on the last device
in the output circuit as shown in Figure 4.
•
The connection of mains power to the power supply is correctly terminated
.
4.2 Commissioning
4.2.1 Power ON
The Power ON Procedures to be carried out during on-site commissioning as follow:
1. Turn ON the circuit breaker that connects mains power to FT1-SB power supply. Check that
the green mains “Power ON” LED on the power supply module is illuminated.
2. On the front Display, check that only the green ‘Power ON” LED is illuminated, all other LED
indicators should be extinguished
3. Measure the DC voltage on the power supply output bV and -V. The voltage should
be 24Vdc +/- 0.2V. If the voltage requires adjustment, locate the “+V ADJ” trim pot on the
front of the power supply module and adjust the voltage to be within tolerance.
4.2.2 Alarm & Fault Test (Test controls)
FT1-SB front display provides 3 controls for the zone circuit; alarm test, fault test and disable. The
alarm test and fault test procedures may be carried out as shown below:
1. Press the alarm test control button, check:
•
Alarm LED flashing
•
Buzzer is On
•
Alarm relays and supervised output activated.
2. Press the Silence Buzzer control, the buzzer stops sounding.
3. Press Disable, all alarm outputs de-activate, the alarm LED remains flashing
4. Press the “Reset” button, alarm relays de-energise and the alarm LED turns off.
5. Re-Press the ‘Disable” control to reenable the system.
6. Press the fault test button and check the following:
•
Fault LED is flashing
•
Buzzer is On
•
Fault relay is de-energised (normally energised)
