Intellitec
131 Eisenhower Lane North
Lombard, IL 60148
630 268 0010 / 1 800 251 2408
P/N 53-00778-100 Rev. 062003
www.Intellitecsve.com
Intellitec
Application Installation and Trouble Shooting Guide
Mini-Bus Multiplex System
DOOR MODULE
The Door Module provides solid-state switching and
logic control for an electrically operated door motor.
Solid-state switching eliminates failures from
burned relay contacts. (Relays are used for
direction control, but do not switch the current.)
The module controls the door, interior lights and the
step-well light, as well as providing for an external
key switch and sensitive edge input. Two or more
door modules may be used per system. The module
may be configured as an “A” or “B” module by a
jumper setting. Each module that has its jumper set
in position “A”, will be operated by the door switch
located on switch adapter “A”. Each module that
has its jumper set in position “B” will be operated by
the door switch on switch adapter “B”. A vehicle
may use as many door modules as required. This
module may also be used as a stand- alone device.
When the door module receives a signal from the
switch adapter, or key switch to open the door, it will
start the door motor. Simultaneously, a timer is
started that limits the time the motor will run. The
module will sense end of travel or an obstruction,
when the motor stalls. When the stall current
reaches the adjustable limit, it will shut down the
power to the door motor. If the over-current limit is
not reached while the timer is running, the timer will
turn off the motor. This will protect the motor, should
the over-current limit be set incorrectly.
The over-current shut down eliminates the need for
a door open limit switch and provides the additional
function of stopping the door should it encounter an
obstruction (such as a curb, or sign).
If while the door is closing, the module senses stall
current (a door obstruction) and the “door closed”
switch has not been activated, the door will open.
This feature simulates a sensitive edge on the door.
When the obstruction has been cleared, the
Operator must operate the switch again to close the
door. The “door closed” switch adjustment is non-
critical and only needs to be set within the last few
inches of travel.
In the event that the door has a sensitive edge
switch, the module contains an input connection for
the switch. When the sensitive edge switch is
operated, the door will behave as described in the
paragraph above.
The door module has an input connection for a
SPST switch, which can also be used to open and
close the door. A key switch that allows removal of
the key in either position should be used. This input
may also be used if the module is used outside the
Mini-Bus system. Motor current does not flow
through the key switch contacts.
When the door module receives a signal to open the
door, the step well light output located on the door
module, interior lighting circuit and door ajar light,
will turn on. The interior lights will remain on, as long
as the door is open and ignition is on. The step well
light will turn off after approximately 20 minutes.
When the door closes, the step well light will turn off
after a 10-second delay. If the door is left open and
ignition is off, the interior lights will turn off after 20
minutes. The step well lights will remain on, unless
the battery goes low. If the battery voltage drops to a
predetermined level, these lights will go out to
prevent running the battery down further, leaving it
strong enough to start the engine.
Contact Intellitec for information on the use of this
controller for pneumatically operated doors.
SIMULATED SENSITIVE EDGE
SENSITIVE EDGE
EXTERIOR KEY SWITCH
DOOR MODULE LIGHT FUNCTIONS
Page 9
