Chamberlain MADCBB - Manual (Page 19)

19
SAMS WITH OTHER OPERATORS
REQUIRES THE K1 RELAY OPTION (Order SAMS KIT)
This feature allows a logical interface between the MEGA ARM barrier gate and a
swing, slide, etc. gate operator (or MTC-31). All that is required is 4 wires between the
MEGA ARM barrier gate and the other operator. It will be necessary to have one set
of dedicated/isolated dry contacts - {C. and N.C.} COMMON and NORMALLY CLOSED
be available at the other operator’s OPEN LIMIT SWITCH. Most operators will require
that this EXTRA limit switch be added to their open limit switch assembly.
OPERATION
A one second pulse from access control device to the MEGA ARM will energize its K1
relay sending an open signal to the other operator causing it to open. However, the
MEGA ARM’s barrier arm will not raise yet. When the other operator reaches its full
open limit switch, this will open the COMMON and NORMALLY CLOSED contact on the
EXTRA open limit switch. This will allow the original signal from your access control
device (that was stored in memory) to now raise the barrier arm. As long as the
other operator is in the full open position, any additional open pulse sent will in turn
energize the MEGA ARM’s K1 relay to send another open signal to the other
operator as well as cause the arm to raise again if it has closed via a car crossing
the MEGA ARM’s close loop.
WIRING:
1. Run 2 wires from the other operator’s isolated common & normally closed
contacts of its open limit switch to the MEGA ARM J5#8 and one of the
commons J5, #9-12.
2. Run 2 wires from the MEGA ARM’s K1 relay (common & normally open) to the
other operators common and open input. (WARNING: Max of 30 VOLTS at .5
amps through relay). J5 #8 was the unused SHADOW LOOP input on the MEGA
ARM. NOTE: A separate open device (24 hour timer, toggle switch) can be run
to the other operator to control it without raising the gate arm. Tampering with
the other operator’s safety loops, safety edges and reverse sensors WILL NOT
cause the arm to raise if one tripped. The arm will only raise if an intended
open signal was sent to the MEGA ARM.
NOTES:
• For motorized teeth, vertical pivot or overhead operator, leave S1-6, S1-8 OFF
(this will keep the K1 relay latched down until the arm reaches the down
position. This will keep the other gate operator locked open or teeth locked
down until the arm closes completely).
• In this mode, if the arm senses an impact, the K1 relay will stay energized
holding open (or teeth down) the other operator until the arm times out and
closes.
NOTE: Insert a jumper across the JP2 terminal to allow the SAMS feature to work
with the multiple vehicle memory count selection, use the K1 relay to open the
sequenced gate (S1-5 off, S2-6 on, jumper across JP2). This allows gate to store
input counts via J5 #4 but not raise the arm until the sequenced slide or swing gate
has fully opened.
K1 Relay
C
C
Access Device
Open Input
NO
NC
Other Operator
(Slide, Swing, Teeth, etc.)
S1, #6 and #8 (ON) = K1 Relay PULSE only.
S1, #6 and #8 (OFF) = K1 Relay LATCH only.
J5 #11
J5 #8
Extra Open Limit
Switch
ADDITIONAL FEATURES »
SEQUENCE ACCESS MANAGEMENT SYSTEM (SAMS) WITH "MEMORY"
SEQUENCE ACCESS MANAGEMENT
SYSTEM (SAMS) WITH "MEMORY"