Haldex DIAG++ Operator's Manual page 74

Internal demand pressure (0.. 4 bar)
This pressure will be delivered 1:1 to the actuators, if
the following option ('load apportion..') is not selected.
If this option is selected you'll get load dependant
output, (LSV active) corresponding to the demand pres-
sure. Option 'output + 0.2 bar...' generates a higher
output, if the current setting is not high enough under
special conditions (big gradient during street building..).
To achieve this, the pneumatic demand pressure must
be higher than the current EBD demand pressure for a
short period of time.
Electric brake demand options
Keeps lift axles down as long as this feature is active,
this avoids height changes of trailer chassis.
If the 'disable speed' was crossed during operation and
therefore the EBD feature is switched 'off', the control
input must be reset once to switch 'on' the feature
again.
If the control input is already active during ignition 'on',
it must be reset once to switch 'on' the feature again.
The last two options avoid unexpected activation of the
feature.
Electric brake demand information
By default the EBD feature is inactive and must be
controlled by external input / switch!
The following inputs can be used:
GPI4 = AUX 4 connected to a switch, yellow core as
signal input.
GPI5 = AUX 5 connected to a switch, yellow core as
signal input.
Additional, if you use Super AUX EB+ variant:
Input A, B, C available on power B connector.
Several of these inputs (A and / or B, A and / or C, B
and / or C), or customer specific combination of these
inputs (modify screen).
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DIAG++
If you select more than one input, they are used
corresponding to the selected logic:
((Input A active) AND / OR (Input B active)) -> Action
The brake will be applied if the current speed is below
EBD 'enable speed' threshold AND the logic is also
valid.
OR
Brake will be applied if one of the inputs is active.
AND <<only useful with more than one selected
input>>
Brake will be applied if all related inputs are active.
Innovative Vehicle Solutions
Operator's Guide
2022