BENDIX BW1670 ユーザーズマニュアル

®

Bendix trailer antilock systems utilizing the EC-14

™

electronic controller assembly provide axle braking control
for buses, trucks, and truck trailers.  By controlling "wheel
lock-up" during aggressive braking, the trailer retains a high
degree of stability and steerability while braking, and vehicle
stopping distance may be reduced.

In order to provide axle control antilock, the EC-14

™

 controller

is used in combination with the following components:

•

Four individual wheel speed sensors.

•

One combination modulator-relay valve.

•

One stand alone modulator valve.

•

Antilock condition lamp (dash mounted).

The EC-14

™

 controller electronics, which regulate the function

of the antilock system, are contained in a die cast aluminum
housing and are environmentally protected by silicone

encapsulation.  The metal housing, coupled with the design
of the digital electronics, is intended to provide a high degree
of protection from radio and electromagnetic interference.

A diagnostics display window with 9 light emitting diodes
(LEDs) and a magnetically actuated Reset switch is
incorporated in the housing for troubleshooting and
diagnostic purposes.

Two electrical connectors are currently used on the EC-14

™

controller, one for connection to the antilock system
components (30 pin, Packard Electric, 150 series "Metri-
pack”) and one for connection to a combination
modulator-relay valve (4 pin, Molex).

The EC-14

™

 controller is specifically designed to be mounted

to a modulator-relay valve assembly, such as the Bendix

®

M-12

™

 modulator (reference SD-13-4772). When the

EC-14

™

 controller is mounted on a modulator assembly the

30 PIN WIRE

HARNESS CONNECTOR

DIAGNOSTICS

WINDOW

MOUNTING HOLES (4)