Entrance Management System Wiring - ICS Tunnel Master Jr. User Manual

Entrance Management System Wiring

IMPORTANT: This circuit is used if the customer has purchased a treadle switch from the
equipment vendor. The Entrance Management System in the Tunnel Master® Jr. allows a
roller to be fired automatically upon seeing a second 24V input on Input 10. At the same
time, an output can be set to fire and the roller can be delayed.
When a car enters the tunnel, the Tunnel Master® Jr. will wait to see two signals within 15 seconds
of each other from the tire treadle that is wired into Input 10. The first signal represents the front
tire, and the second signal represents the rear. After it sees the second signal, the Tunnel Master® Jr.
will fire an optional sign relay followed by a roller relay. The amount of time between the sign firing
and the roller is called the Entrance Management Delay in the Wash Settings. The following diagram
shows how to wire the treadle switch for the EMS into the Relay Box.
TIRE TREADLE CIRCUIT WIRING
24 VAC SUPPLY
(BY OTHERS)
L
TREADLE SWITCH
N.O. CONTACTS
Figure 2-9. Entrance Management Overview and Wiring Diagram
Chapter 2: Hardware Installation
N
NORMALLY
COMMON
OPEN
TMJ RELAY BOX TERMINAL STRIP (TOP)
Tunnel Master® Jr. User Manual - Page 13