Seco-Larm SA-025Q Manual


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The SA-025Q Programmable Timer Module is suitable for a wide range of timed security
and access control operations, such as door unlock timing, siren or bell timer, VCR timer,
and so on. Auto-sensing of input voltage and DIP switches for programming make
installation easy.
Features / Specifications:
Timer can be set from 1 second to 60 minutes
Can be triggered via a N.O. positive (+) trigger input signal or a N.C. negative (-) trigger
device or by powering up the unit
Relay can be programmed to activate at the start or at the end of the timing cycle
Relay can also be set to activate for one second at the end of the timing cycle
Relay can be programmed to pulse (flash) or be steady on
Built-in reset function to manually reset timing cycle
Form-C relay, contacts rated 8A @ 120VAC/24VDC
LED indicates relay is energized
12VDC/24VDC operation (auto sensing)
Current draw Less than 1mA (standby) or 50mA (relay energized)
Board measures 2-7/8” x 2-1/2” (73 x 63 mm)
Functions programmed via DIP switches no jumpers to cut
Fig. 1 DIP switch settings
Switch
#1
#2
#3
#4
#5
#6
Off
Fixed 1 sec. Relay
output time
Relay energizes at start
of timing cycle
REPEAT timing cycle
Time in MINUTES
Timing controlled by
TRG input
Counter begin at START
of TRG
On
Variable Relay output
time
Relay energizes at
end of timing cycle
SINGLE timing cycle
Timing in SECONDS
Timing controlled by
Power Up
Counter begin at END
of TRG
Wiring:
TRGN.O. Positive (+) trigger input
signal or
N.C. Negative (
-
) trigger input
signal
(1K ohm resistor
required - included)
(-)Ground input
(+)+12VDC to +24VDC input
NORelay output (normally open)
COM Relay output (common)
NCRelay output (normally closed)
DIP Switch Settings (Programming):
The SA-025Q is programmed via a
series of six DIP switches which can be
turned on or off. See fig. 1.
b. Action If the TRG terminal is connected to (+) for the time set by the timer, the
relay activates and remains activated. To reset the latched relay, connect the TRG
terminal momentarily to (+) again.
c. Triggering by powering unit up – If DIP switch #5 is set to ON, the delay period set
by the timer starts when the SA-025Q is powered up. At the end of the delay period,
the relay latches on and remains on until the SA-025Q is disconnected from power.
5. Pulsing or Flashing Output, instant or delay (Fig. 6):
a. DIP switch settings:
1 Relay output mode, see below
2 Instant/delay start, see below
3 – OFF
4 – Timer setting (ON or OFF)
5 – OFF
6 – OFF
b. Action If the TRG terminal is connected to (+) momentarily, the SA-025Q waits for
the time set by the timer, and then starts pulsing/flashing. The pulse/flash output lasts
until the TRG terminal is disconnected from (+).
c. Triggering by powering unit up – If DIP switch #5 is set to ON, the output works the
same, but instead of triggering via the TRG terminal, the SA-025Q is triggered by
being powering up.
d. Instant/delay startIf DIP switch #2 is set to ON, the SA-025Q waits for the time set
by the timer after triggered or powered up, and then starts pulsing/flashing. If DIP
switch #2 is set to OFF, the SA-025Q starts pulsing/flashing as soon as it is triggered
or powered up.
e. Relay output time If DIP switch #1 is set to ON, the relay on and off time depends
on how the timer is set. If DIP switch #1 is set to OFF, the relay on time is fixed at
about 1 second, and the relay off time depends on how the timer is set.
6. Optional Negative Trigger or Closed-Circuit Trigger (Fig. 7):
If a closed-circuit negative trigger is required, it is necessary to install a 1K
(1,000-ohm) resistor as shown (included).


Produkt Specifikationer

Mærke: Seco-Larm
Kategori: Ikke kategoriseret
Model: SA-025Q

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