Instruction 5700-9001
GDA-1600 16-Channel Controller
13
3.2.2 Alarm 1 / Alarm 2 /
Horn Relay Setup Menu
Alarms 1 and 2 are identical except A1 may not be
acknowledged
and front panel LED
indicators are yellow while A2s are red. Since their configuration menus are the same
only one is shown in Figure 3.2 for clarity.
Figure 3
.2
– Alarm / Horn Relay Setup Menu
Entries
Description
Setpoint
Value where the alarm trips. It is entered in engineering units. For example, if a
channel monitors 0-50 ppm H
2
S and the alarm is to trip at 10 ppm, the correct entry is
10.00.
Latching
Determines either manual or automatic alarm reset operation.
YES
requires a manual
Alarm Reset
to unlatch the alarm even though an alarm condition no longer exists.
YES
also causes this alarm group’s common relay, front panel LED, and optional discrete
relay to latch.
NO
allows all outputs for this alarm to automatically reset as soon as the
alarm condition clears.
Trip On
TRIP ON
is set to
HIGH
for increasing alarms or
LOW
for decreasing alarms to determine
if the alarm activates upon exceeding or falling below the setpoint.
On/Off
Delay
Allow
ON
and
OFF
time delays affecting how long the setpoint must be surpassed
before an alarm event transition occurs.
ON
delays are limited to 10 seconds while
OFF
delays may be as long as 120 minutes. Delays are useful in many applications to
prevent nuisance alarms and unwanted cycling into and out of alarm conditions.
Horn On
Used to link this alarm to the common horn relay.
NO
causes the alarm to have no
effect upon the horn relay. Entering
YES
causes this alarm to turn the horn relay on
steady, or, to pulse it depending upon horn configuration in they system menu (see
section 3.3.1).
Discrete LED indicators on the front panel indicate the status of each alarm and relay.
Any
new
alarm event causes the associated LED to flash until
Alarm Reset
occurs
causing an
acknowledged,
steady on condition. Operators should recognize
new
alarms
by a flashing LED.
Alarm Reset
also
acknowledges
, or deactivates, the horn relay until
another new alarm occurs.
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.
Содержание GDA-1600
Страница 12: ...GDA 1600 16 Channel Controller Instruction 5700 9001 12 Figure 3 1 Channel Configuration Menus ...
Страница 21: ...Instruction 5700 9001 GDA 1600 16 Channel Controller 21 Figure 3 10 Configuration Menus ...
Страница 28: ...GDA 1600 16 Channel Controller Instruction 5700 9001 28 Figure 4 2 Main PCB ...
Страница 36: ...GDA 1600 16 Channel Controller Instruction 5700 9001 36 Figure 4 7 Analog Output Board ...
Страница 38: ...GDA 1600 16 Channel Controller Instruction 5700 9001 38 Figure 5 2 System Diagnostic Options ...
Страница 53: ...Instruction 5700 9001 GDA 1600 16 Channel Controller 53 ...