13
LW-401 Operation, Installation, and Maintenance Manual
LW-401
Set Output Control Matrix (Program
Level 5)
The LWZE-4A Zone/Output Expander mod-
ule has four output relays and four open
collector outputs. The LWZR-8 Relay module
has eight output relays. Initiating Device
Circuits can be mapped to these outputs. Any
number of zones can be mapped to any
output. The first zone in alarm will turn the
output on. Also, any zone can be mapped to
any number of outputs. When the zone
alarms, all mapped outputs will turn on.
The outputs on the LWZE-4A and the
LWZR-8 are linked. The outputs are num-
bered 1 through 8. If a zone is mapped to an
output, for example output number 1, the first
output on the LWZE-4A and LWZR-8 will
turn on if both modules are in use.
Bypass Zones and Outputs (Program
Levels 1 and 2)
The LW-401 can bypass both Initiating
Device Circuits and relays or open collector
outputs on the LWZE-4A Zone/Output Ex-
pander module and the LWZR-8 Relay mod-
ule.
• When a circuit is bypassed, the system
reports a trouble condition and the
Bypass LED will be on.
• When a zone is bypassed, the zone
trouble LED will also be on.
• When an output is bypassed, and both
the LWZE-4A and the LWZR-8 are in
use, the respective output on both cards
will be bypassed.
Set System Timing (Program Level 6)
The LW-401 has the following four timing
functions:
1. Verification Retard/Reset Timer
2. NAC Inhibit Timer
3. NAC Cutoff Timer
4. Simplified Zone Code Rounds
The Alarm Verification Retard/Reset time
establishes the delay time required to provide
an alarm verification cycle as determined by
the system owner or the local authority.
(Complete instructions for the proper selec-
tion of this timer follow.)
The NAC Inhibit and Cutoff Timers provide
automatic control of evacuation signals.
• The inhibit timer prevents any user from
silencing the notification appliances
before the selected time expires.
• The cutoff timer automatically turns off
all notification appliances after the
selected time expires.
Each timer has eight separate selections.
When the cutoff timer is set at
No Cutoff (0
minutes), there is no automatic cutoff and
the appliances are energized until silenced
or reset.
The last timing function sets the number of
rounds of code for those systems using
Simple Zone Coding. (Please see the above
discussion of NAC types for a full explana-
tion of Simple Zone Coding.) The minimum
number of rounds is 3 and the maximum
programmable number of rounds is 8.
Alarm Verification Retard/Reset Timer
Selection (Program Level 6-1)
The selection of the Alarm Verification
feature results in a delay of the system alarm
signal to the affected circuits. The total
allowable delay is 60 seconds. This delay,
the Alarm Verification time, is the sum of a
built-in 6 second system delay and the
programmed Retard/Reset time. The Retard/
Reset time can be set between 15 and 50
seconds, with 15 seconds being the pro-
grammed default. (See the definition of zone
types above for a further definition of the
Alarm Verification Time cycle.)
