Volvo IPS950 - Page 143

Alternative installation
Inactive (+) when closed (energized to run)
NOTICE!
If there is a requirement for a pause function
on the relay with an active positive (+) from the fire
shut-off system when the engine is running, and no
active positive (+) to switch off the system, the cables
must be connected in the relay base as illustrated.
Terminal 85 is connected to the battery (-) and terminal
+86 to the fire alarm unit.
The illustration shows a circuit diagram of an energized
circuit.
1 Pin 1 R (+)
2 Pin 2 SB (-)
3 Accessory cable kit, 10 m (3.5 ft.)
4 Fire shut-off unit
5 From main switch (+)
Do not use accessory relay for EVC
85
87a
30
+ 86
87
P0011569
87 is not used.
87a
30
87
(+)86
(-) 85
1
2
3
4
5
P0011568
Installation, Fire Extinguishing System
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