BENDIX EC-30 ABS-ATC CONTROLLER User Manual

5
Trailer ABS Warning Lamp
EC-30
™
controller models with PLC can be configured to
control a trailer ABS warning lamp (located in the dash) that
indicates the status of the trailer ABS unit of one or more
trailers or dollies. The EC-30
™
controller directly controls
the trailer ABS warning lamp by providing a ground path
when the lamp is to be activated. Pin E2, of the 30-pin
connector, is the trailer ABS warning lamp output.
J1939/J1587 Trailer ABS Warning Lamp
The EC-30
™
controller can be configured to broadcast the
trailer ABS status over the SAE J1939 or the SAE J1587
serial communications links. In this case, a vehicle controller
will directly operate the trailer ABS warning lamp. When
configured in this manner, there is no wire installed in pin E2
of the 30-pin connector. In the event that communications
is lost between the EC-30
™
controller and the vehicle
controller, the dash controller will activate the trailer ABS
warning lamp.
J1708/J1587 Diagnostic Link (J1939)
The EC-30
™
controller provides a J1708/J1587 diagnostic
link to communicate with the vehicle and various diagnostic
tools. Diagnostics, system configuration, data uploading
and downloading and other functions can be performed using
this link. The EC-30
™
controller is supported by tools such
as Bendix
®
ABS Diagnostic Software, the Bendix
®
DCI hand
held tool and the MPSI ProLink. The EC-30
™
controller
may also provide diagnostics using the SAE J1939 serial
communications link.
J1939/1922 Engine Torque Reduction - ATC
The EC-30
™
controller can be configured to reduce engine
torque over the SAE J1939 (J1922 for some service
replacement models) serial communications link. The
EC-30
™
controller will send a J1939 message to reduce
engine torque during ATC operation.
ATC Active/Warning Lamp
Premium EC-30
™
controller models configured for ATC can
control an ATC active/warning lamp to indicate the status of
the ATC system. The ATC active/warning lamp flashes when
ATC is active and stays on if an ATC system fault is detected
or ATC is disabled by the ATC enable/disable switch. The
EC-30
™
controller directly controls the ATC active/warning
lamp by providing a ground path when the lamp is to be
activated. Pin C2, of the 30-pin connector, is the ATC active/
warning lamp output.
J1939 ATC Active/Warning Lamp
Premium EC-30
™
controller models configured for ATC can
be configured to broadcast the status of the ATC active/
warning lamp over the SAE J1939 serial communications
link. In this case a vehicle dash controller directly operates
the ATC active/warning lamp. When configured in this
manner, there is no wire installed in pin C2 of the 30-pin
connector. In the event that J1939 communications are lost
between the EC-30
™
controller and the vehicle dash
controller, the dash controller will activate the ATC active/
warning lamp.
ATC Modulator
Premium EC-30
™
controller models configured for differential
braking ATC will activate the ATC modulator during ATC
situations. The ATC modulator is an electrically controlled
air valve integral to the ATR valve. Pins D2 and D3, of the
18-pin connector, control the ATC modulator. A connection
to the ATC modulator is provided via a two-pin Deutsch
connector from the ATR valve. See figure 2.
ABS Warning Lamp
The EC-30
™
controller controls an ABS warning lamp to
indicate the ABS unit status. The EC-30
™
controller provides
a ground signal to activate an ABS warning lamp relay and
turn the ABS lamp off. The actual ABS warning lamp is
connected to the normally-closed contacts of the relay in
order to illuminate in a fail-safe manner during an ABS ECU
failure. Pin E3, of the 30-pin connector, is the ABS warning
lamp output.
J1939 ABS Warning Lamp
The EC-30
™
controller can be configured to broadcast the
ABS status over the SAE J1939 serial communications link.
A vehicle dash controller directly controls the ABS warning
lamp. When configured in this manner, there is no wire
installed in pin E3 of the 30-pin connector. If J1939
communications is lost between the EC-30
™
controller and
the vehicle dash controller, the dash controller will activate
the ABS warning lamp.
Retarder Disable Relay
The EC-30
™
controller controls an engine or transmission
retarder disable relay. The retarder activation wire is routed
through the normally-closed contacts of the relay. The
EC-30
™
controller provides a ground path to activate the
relay and interrupt power to the retarder during ABS operation.
This output may also connect directly to a transmission
ECU. Pin K1, of the 30-pin connector, is the retarder disable
relay output.
J1939/J1922 Retarder Disable
The EC-30
™
controller can be configured to interrupt the
engine or transmission retarder over the SAE J1939 serial
communications link. (J1922 for some service replacement
models). The retarder will be disabled during ABS via the
serial communications. When configured in this manner,
there is no wire installed in pin K1 of the 30-pin connector.
Use of the retarder disable function via the serial link may
be essential to ABS performance and is highly recommended
for vehicles equipped with a capable retarder.
J1939/J1922 Torque Converter Lock Disable
The EC-30
™
controller can be configured to interrupt the
automatic transmission torque converter lock function, over
the SAE J1939 serial communications link. (J1922 for some
service replacement models). The converter lock will be
disabled during ABS via the serial communications. Use of
the torque converter lock disable function may be essential
to ABS performance and is highly recommended for vehicles
equipped with a capable transmission.

BENDIX EC-30 ABS-ATC CONTROLLER Specifications

General

Brand	BENDIX
Model	EC-30 ABS-ATC CONTROLLER
Category	Controller
Language	English