Kentec Electronics Sigma XT Plus, Руководство по эксплуатации и обслуживанию

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Man-1112 Sigma XT+_23 Page 34 of 52
15.2.17 Invert low pressure switch input
To enable low pressure switches to be used which have normally closed rather than normally open contacts, it is
possible to invert the low pressure switch input.
The factory default setting is for the low pressure switch input to use a normally open contact.
To invert the low pressure switch input, switch on the enable controls keyswitch and slide the write enable switch
on the module to be configured gently to the left. Press the ENTER button on the extinguishing module then press
the DOWN button until the display shows:
LOW PRESS. I/P
MODE = NORMAL
Press the ENTER button and the display will show:
LOW PRESS. I/P
MODE = INVERTED ?
To select this option, press the enter button.
To save the settings, slide the write enable switch gently to the right.
The low pressure switch input will now require a normally closed contact via a 470R trigger resistor and 6K8 end of
line resistor for correct supervision.
Note: If the Low pressure input is configured as INVERTED in the menu option, an error will display
EXTING.PRESS.FAULT if the switch is not configured correctly.
The INVERTED input is looking for the 470 ohm trigger resistor to be removed on activation.
15.2.18 Invert Released Pressure switch input
To enable Released pressure switches to be used which have normally closed rather than normally open contacts,
it is possible to invert the Released pressure switch input.
The factory default setting is for the Released pressure switch input to use a normally open contact.
To invert the Released pressure switch input, switch on the enable controls keyswitch and slide the write enable
switch on the module to be configured gently to the left. Press the ENTER button on the extinguishing module then
press the DOWN button until the display shows:
Released Input
MODE = NORMAL
Press the ENTER button and the display will show:
Released INPUT
MODE = INVERTED ?
To select this option, press the enter button.
To save the settings, slide the write enable switch gently to the right.
The Released pressure switch input will now require a normally closed contact via a 470R trigger resistor and 6K8
end of line resistor for correct supervision.
Note: When Released pressure input is configured as INVERTED in the menu option, the released condition will be
established and indicated.
The INVERTED input is looking for the 470 ohm trigger resistor to be removed on activation.
15.2.19Extinguishant output monitoring levels
The extinguishant outputs are able to monitor both solenoid and igniting actuator releasing devices. This requires
that the outputs be calibrated with the releasing device and the cable to it, fitted as it will be in the working
system.
The extinguishant outputs are fitted with a 1N4004 diode at the factory and the default monitoring level will be set
at approximately 206 but may be between 204 and 208.
Before calibrating the extinguishant outputs ensure that the releasing device is fitted to the cable as shown in
section 10.
To change the monitoring level for extinguishing output 2, switch on the enable controls keyswitch and slide the
write enable switch on the module to be configured gently to the left. Press the ENTER button on the extinguishing
module then press the DOWN button until the display shows:
exting. o/p 2
level = 206
Press the ENTER button and the display will show:
exting. o/p 2
The XXX here will be the actual monitoring level read by the module.
level = xxx ?
To save this setting press the ENTER button.
To set the monitoring level for extinguishant output 1, press the DOWN button. The display will show: