Chamberlain MADCBB - Manual (Page 9)

9
WIRING »
INPUTS
The J5 terminal strip is used for controlling the barrier arm with various accessories such as receivers, loop detectors, access controls, and push button stations. Use common
and normally open contacts from devices connected to these inputs. The J5 terminal strip is located on the top of the control board. Make connections to the appropriate points
for the desired operation. Wires should be UL approved 600 volt rated and at least 18 AWG. They are to be routed through the upper grommet in chassis to avoid chafing. All
external control devices must have normally open dry contacts.
NOTE: Above inputs are tied to LED indicators to show input command activity.
J5
S3
Q2
T2
1 2 3 4 5 6 7 8 9 1Ø 11 12
T1
OPEN 1
D1
5
3
OPEN 2
D1
6
OPEN 3
D17
AUX 4
D1
8
SAFETY 5
D1
9
CLOSE 6
D22
BACK 7
D2
3
SHADOW 8
D24
OPEN
CLOSE
MANUAL
T4
T3 T6
T5 T8
T7
C
15
F
C
1
8
U18
R21
R24 R35 R41 R46 6 R5 R Ø R61
C16
J5 Wiring Inputs on the control board
DO NOT connect ANY device which would deliver ANY voltage of ANY kind to these terminals.
INPUTS (J5 TERMINAL STRIP)
TERMINAL INPUT EXPLANATION
1,2,3 OPEN These inputs will trigger gate open when pulsed or hold gate open with maintained contact. When released gate
will close if closing timer is on or if close input is given.
4 AUXILIARY OPEN Same as 1, 2 and 3 with S2 switch 6 off. With S2-6 DIP switch in the ON position, the Multiple Vehicle Memory
will activate, with inputs on terminal 4 and Common (COM) on the J5 terminal strip. Use with laser scanners or
card readers and (transmitters with timed anti-pass back). With S1 switch 5 on, this input becomes a momentary
pulse open, pulse close.
5 SAFETY This input is generally not used with the MEGA ARM. If used its function is to make gate reverse and go back to the
open position if it was closing. Input is disabled when gate is closed.
6 CLOSE When used with a vehicle detector, it is recommended that the presence contacts (N.O. & C.) be used for the
close input. This input will close gate after input is applied and then removed. It will stop the open cycle and
reverse gate to close. EXAMPLE: Car crosses over close loop before arm reaches full open position- gate will
reverse and close. NOTE: The close input also acts as a safety-stop in that if gate is closing and a tailgater is
sensed at the close input, the gate WILL STOP its closing motion and not continue to close until the close input is
removed or gate is re-opened.
7 BACK-AWAY (FREE EXIT) This input is used as a free exit input to open gate. When input is active, gate will open and close immediately
once input is removed. EXAMPLE: Car pulls up to exit loop, gate opens; car “backs-away” from exit loop and
gate closes.
8 SHADOW (SAMS) Used to monitor an auxiliary open limit switch of another operator in the same lane. SAMS with memory
feature, see page 19.
9,10,11,12 COMMON These are the commons (0 Vdc) to be used to activate above inputs.