BENDIX MC-30 TRAILER ABS CONTROLLER Anleitung zur Fehlerbehebung PDF herunterladen (Seite 6)

CHART 4 - LED POWER-UP DISPLAY OF EC-30

™

CONTROLLER CONFIGURATION

LED Power-Up Sequence LEDs

When power is applied All LEDs Illuminate

Then the LEDs indicate one of the following:

4 Sensors SEN-RER-FRT

6 Sensors SEN-RER-MID-FRT

Then the LEDs indicate one of the following:

ATC Engine Limiting TRC

ATC Differential Braking TRC-MOD

No ATC N/A

The LEDs will then indicate system status:

Normal Operation (if no faults) VLT

POWER-UP SEQUENCE

ABS Warning Lamp at Power-Up

At power-up without detected faults, the ABS warning lamp

turns on for 2.5 seconds and then turns off. See ﬁ gure 7.

ATC Active / Warning Lamp at Power-Up

At power-up, the ATC active/warning lamp displays the

ATC control conﬁ guration and then turns off. A series of

blinks indicates if the ATC is conﬁ gured for engine torque

limiting and differential braking, engine torque limiting only,

or differential braking only. See ﬁ gure 7.

Driver

Left Front

Right Rear

Left Rear

Right Mid

Left Mid

FIGURE 8 - VEHICLE ORIENTATION

FIGURE 7 - EC-30

™

CONTROLLER POWER-UP LAMP

SEQUENCE

Diagnostic LEDs at Power-Up

At power-up, the diagnostic LEDs all turn on, then display

the conﬁ guration for sensors and the ATC. After showing

the conﬁ guration, only the green VLT LED will stay on.

However, if a fault is detected, the faulted component will

be identiﬁ ed by the red LEDs. See chart 4.

Trailer ABS WL

(PLC Detected)

Trailer ABS WL

(PLC Not Detected)

OFF

Powered Vehicle ABS WL

OFF

Engine torque

limiting and

differential braking

OFF

Engine torque

limiting only

OFF

Differential braking only

OFF

No ATC

OFF

Trailer ABS Warning Lamp

At power-up, the trailer ABS warning lamp turns on for 2.5

seconds and then turns off. This only occurs if a PLC trailer

or PLC diagnostic tool is connected to the tractor at the

time ignition power is applied. Only an EC-30

™

controller

with PLC installed on a towing vehicle will support the

trailer ABS lamp.

Retarder Disable Relay at Power-Up

At power-up, the EC-30

™

controller may toggle the retarder

disable relay. If the relay is located in the cab it is usually

audible to the operator.

Modulator Chuff Test at Power-Up

At power-up, the EC-30

™

controller activates a patented

modulator chuff test. The modulator chuff test is an

electrical and pneumatic ABS modulator test, that can

assist the technician in verifying proper modulator wiring

and installation. With brake pressure applied, a properly

installed modulator causes a single sharp audible chuff

of air pressure by activating the hold solenoid two times

and the exhaust solenoid once. If the modulator is wired

incorrectly, the modulator will produce a double chuff, or

no chuff at all. The EC-30

™

controller activates a chuff at

each modulator in the following sequence:

Right-Front, Left-Front, Right-Rear, Left-Rear. See ﬁ gure 8.

The chuff sequence is then repeated for a total of 8 chuffs. If

an issue is detected during the modulator chuff test, look for

faults and compare the modulator wiring and plumbing to the

EC-30

™

controller system schematic shown in ﬁ gure 13.

Right Front

1 2 3 4 5 6 7 8 9 10 11 ... 31 32

Kommentare zu diesen Handbüchern

Keine Kommentare

BENDIX MC-30 TRAILER ABS CONTROLLER Anleitung zur Fehlerbehebung Seite 6

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Modulator BENDIX MC-30 TRAILER ABS CONTROLLER