WX16 User Manual | 22
level alarms must come from a channel included in the
Group
entry described
above.
•
Turning
Acknowledge
ON
(not available on Alarm 1) allows the common relay to
be deactivated during alarm conditions by an
Alarm Reset
. This is useful if an
audible device is being driven by the relay.
All relays are rated at 5 Amp for 28 VDC and 250 ~VAC
RESISTIVE
loads.
IMPORTANT: Appropriate diode (DC loads) or MOV (AC loads) snubber
devices must be installed with inductive loads to prevent RFI noise spikes.
Relay wiring should be kept separate from low-level signal wiring.
2.3.2 10-0195 Discrete Relay “Failsafe” Mode
10-0195 Discrete relay options may also be configured to function in a
Failsafe
mode
using the System Setup menu shown in Figure 2.12. Entering YES causes these
discrete relays to have energized coils when no alarm condition exists for the
associated channel and de-energized coils when the alarm occurs.
Failsafe
is useful
for indicating failed relay coils and loss of power conditions.
Important: 10-0195
zoning jumpers (see Figure 3.4) should not be used when Discrete Relays menus
are set for failsafe.
Zoning jumpers cause ANY relay in the zone to energize ALL
other relays in the same zone. Zoning of failsafe relays may be accomplished with
wiring at the relay contact terminals.
Figure 2.12
2.3.3 Common Horn Relay & Local Piezo
The WX16 is equipped with a low-decibel audible piezo that chirps when keys are
pressed and may be configured to audibly indicate alarm conditions. The common horn
relay is similar to the common A1 & A2 common relays.
Summary of Contents for WX16
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