QUICK GUIDE 53
EXTINGUISHMENT BOARD
EM
Supervised—Bypassable MANUAL EXTINGUISHMENT Input:
3.900 ohm (680 ohm se NC) across [+] and [–] terminals è Input in Standby
680 ohm (3.900 ohm se NC) across [+] and [–] terminals è PRE-EXTINGUISHMENT time
[+] and [–] terminals shorted or open è Manual Extinguishment Fault signalling
——
IE
Supervised INHIBIT EXTINGUISHMENT Input:
3.900 ohm (680 ohm if NC) across [+] and [–] è Input in Standby
680 ohm (3.900 ohm if NC) across [+] an [–] terminals è EXTINGUISHMENT impossible
[+] and [–] terminals shorted or open è Inhibit Exting. Fault signalling
——
PS
Supervised PRESSURE SWITCH Input:
3.900 ohm (680 ohm if NC) across [+] and [–] terminals è Input in Standby
680 ohm (3.900 ohm if NC) across [+] and [–] terminals è Pressure Switch Activated signalling
[+] and [–] terminals shorted or open è Pressure Switch Fault signalling
——
[EV]
Supervised ELECTROVALVE Output:
Extinguishment Module in Standby è terminals disconnected
Extinguishment Module in Extinguishment phase è terminals connected
terminals shorted or open è Electrovalve Fault signalling
—5
24P
POWER BOOST Input:
Power supply Input for the PR and AE Outputs — —
PR
Supervised PRE-EXTINGUISHMENT Output:
Extinguishment Module in Stand by è negative on [+] terminal, positive on [–] terminal
during the Pre-Extinguishment phase è positive on [+] terminal, negative on [–] terminal
terminals [+] and [–] shorted or open è Fault Pre Ext. signalling
-27.6
27.6
—
1
AE
ACTIVATED EXTINGUISHMENT Output:
Extinguishment Module in Stand by è negative on [+] terminal, positive on [–] terminal
during the Extinguishment phase è positive on [+] terminal, negative on [–] terminal
-27.6
27.6
—
1
PE
POSTPONE EXTINGUISHMENT Output:
IE Input in standby è suspended terminal
IE Input activated è terminal connected to negative 0
—
0.1
Table 4 (...continued) Terminals Description
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