SilentKnight SK-4 Conventional FACP 2 & 4 Zone - Manual (Page 29)

SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010 29
Installation of Optional Modules Installation
4XZMF Zone Relay Module (SK-4 only)
The 4XZMF provides four zone alarm, one system alarm and one system trouble Form-C relays.
Nonpower-limited and power-limited wiring must have a minimum distance of 0.25”, wire to wire.
If this module is used to drive nonpower-limited and power-limited circuits, follow the instructions
below:
1. Skip a set of dry contacts to maintain the 0.25” required space between power-limited and
nonpower-limited circuits. The wiring of this module must follow the requirements as
specified in “Power-limited Wiring Requirements” on page 24.
OR
2. If this module is needed to drive power-limited and nonpower-limited relays that are next to
each other, refer to the following illustration which shows a typical connection:
Relay #1 through #4 will activate with Output #1 through
#4 and remain latched unless ‘LATCH’ jumper is cut.
Use Disable Switch to
disconnect the relays
Cut jumper for nonlatching
(silenceable) relay operation
NO
NC
C
NO
NC
C
NO
NC
C
NO
NC
C
NO
NC
C
NO
NC
C
Relay #1
Relay #2
Relay #3
Relay #4
Alarm
Trouble
}
}
}
}
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
4xzma.wmf
power-limited circuit
power-limited circuit
}
}
}
}
NO
NC
C
NO
NC
C
NO
NC
C
NO
NC
C
Relay #1
Relay #2
Relay #3
Relay #4
{
{
{
{
no connection
Figure 2.14 4XZMF Zone Relay Module
4xzma.wmf
nonpower-limited circuit
nonpower-limited circuit