Installation Manual

Extended mode triggering
Momentary mode triggering
fig. 3
Lock relay release during hold open function
DELAY
OPER
LOCK
When using the extended trigger mode or the
latching relay mode, the lock relay can match
the operator relay output or be released when
the lock timer times out.
To maintain the operator relay and keep the lock
insecure, move the switch to the up position as
shown. If the switch is in the lower position after
the lock timer times out, the lock relay will release
regardless of the state of the extended trigger
input or the mode selected.
The momentary mode is designed to accept either
dry contact (N.O.) or hot (applied voltage) triggers
of arbitrary length. Once the preset period for each
of the timers has expired, that function will release
regardless of whether or not the trigger input has
been removed. The momentary (MOM TRIG) is
selected by taking the +OUT output to the MOM
TRIG input via dry contacts, or placing 12-24 VDC
between the MOM TRIG input and ground (GND
REF) terminals.
Latched mode triggeringLatched mode triggering
This switch in the "down" position changes the
momentary trigger into the latching mode trigger.
In this mode, the operator relay will stay on
indefinitely. The Lock relay may also be maintained
depending upon the position of the control switch.
(See Fig. 4) The next trigger will release both relays
immediately even if the timers haven't expired.
Activation of the extended trigger will override the
latching mode. This prevents the relays from
remaining latched on after the extended trigger ends.
This switch in the "down" position changes the
momentary trigger into the latching mode trigger.
In this mode, the operator relay will stay on
indefinitely. The Lock relay may also be maintained
depending upon the position of the control switch.
(See Fig. 4) The next trigger will release both relays
immediately even if the timers haven't expired.
Activation of the extended trigger will override the
latching mode. This prevents the relays from
remaining latched on after the extended trigger ends.
fig.4
DELAY
OPER
LOCK
The extended mode is designed to accept either
dry contact (N.O.) or hot (applied voltage) triggers
of arbitrary length. The operator relay will be
maintained for the duration of trigger input. The lock
relay may also be maintained depending upon the
position of the control switch (see fig.4). This
allows the door to be held open at length without
damaging intermittent duty strikes. If the trigger
is removed prior to any (or all) timer(s)expiring,
the SA-1 will default to momentary mode.
Extended mode example
fig.5
Adjusting delay timer, and lock and operator
relay time
The trim pot corresponding to each
timer is marked. By turning the pot
screw to the right the run time is
increased from to 10 seconds.
Example: To set a time of 15
seconds, set trimpot to 5 seconds
& move 1 switch down, for 25
seconds, slide 2 switches down.
Long term door hold open (lock
re-secures after door opens)
12-24V
POWER
12 TO 24
VOLTS
AC or DC
EXTENDED
TRIGGER INPUT
+
OUT
MAINTAINED CONTACT SWITCH
(KEYSWITCH, ETC)
OPERATOR
RELAY
C NO NC
LOCK
RELAY
C NO NC
or
TO ELECTRIC
LOCK (STRIKE,
MAG, BOLT, ETC.)
FORM 'C' RELAY
PROVIDES THE
CLOSURE REQUIRED
SA-1
fig.6
NOTE: USE THIS HOOKUP FOR INTERMITTENT DUTY STRIKES
MAX
TIME
LOCK
TIME ADJ.
MAX
TIME
DELAY
TIME ADJ.
MAX
TIME
OPERATOR
TIME ADJ.
LOCK DELAY OPER
TIMER ADJUST - EACH
SW DOWN ADDS 10 SEC
DELAY
OPER
LOCK
Mk IV
POWER
The SA-1 has been designed to give you the
greatest flexibility in your installations. There
are only a few things to remember in selecting
your trigger inputs. The extended trigger ON
blocks both the momentary and latching modes.
Therefore this is the trigger to use for door hold
open applications. However, the momentary
trigger left active will not prevent the operation
of the extended trigger. This makes it the
ideal input for those situations where the
button is prone to sticking.
Mixed mode triggeringMixed mode triggering
12-24V
POWER
12 TO 24
VOLTS
AC or DC
MOMENTARY
TRIGGER INPUT
GROUND REF
OPERATOR
RELAY
C NO NC
LOCK
RELAY
C NO NC
or
TO ELECTRIC
LOCK (STRIKE,
MAG, BOLT, ETC.)
FORM 'C' RELAY
PROVIDES THE
CLOSURE REQUIRED
AC or DC
EXTERNAL POWER
FROM FOREIGN
EQUIPMENT (SUCH
AS ENTRY PHONE)
GND
SA-1
Triggering from a hot output
12-24V
POWER
12 TO 24
VOLTS
AC or DC
MOMENTARY
TRIGGER INPUT
GROUND REF
1N4005
OPERATOR
RELAY
C NO NC
LOCK
RELAY
C NO NC
or
TO ELECTRIC
LOCK (STRIKE,
MAG, BOLT, ETC.)
FORM 'C' RELAY
PROVIDES THE
CLOSURE REQUIRED
AC or DC
EXTERNAL POWER
FROM FOREIGN
EQUIPMENT (SUCH
AS ENTRY PHONE)
GND
+
OUT
SA-1
Triggering from hot output and
dry contacts in combination
NOTE: The diode connecting the foreign equipment is to protect
the foreign equipment and is not required by the SA-1
Vestibule control examples
fig .8
fig 7
TO EXIT DOOR OPERATOR (EGRESS OR ACCESS)
Operating 2 door vestibule, no
electric lock
12-24V
POWER
12 TO 24
VOLTS
AC or DC
MOMENTARY
TRIGGER INPUT
+
OUT
OPERATOR BUTTON OR OTHER
MOMENTARY SWITCH CONTACT
OPERATOR
RELAY
C NO NC
LOCK
RELAY
C NO NC
TO ENTRANCE DOOR OPERATOR (EGRESS OR
ACCESS)
SA-1
fig.9
Mk IV
Mk IV
Mk IV
POWER
POWER
NOTE: ONE SA-1 IS REQUIRED FOR ACCESS
DIRECTION AND ONE FOR EGRESS DIRECTION.