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INPUTS AND OUTPUTS
4.1.1
AIR CONDITION STATUS
This digital input indicates that the air conditioner is inactive. When the digital input is open, then
the fan is turned on if con
fi
gured (Air Condition Enable Auto Fan). There is a 10 second delay
when the digital input is grounded before returning to regular idle.
The AC Enable Switch or the AC High Pressure Switch can be used for this input.
Installation
The Air Conditioner Switch is wired to the CPC on pin 2/12.
Programming Requirements and Flexibility
This digital input's parameters are listed in Table 4-2.
Parameter
Group
Parameter
Description
Setting
Default
Access
6
Mode of A/C
Status Input
Selects Mode for
A/C Switch
0 – Disabled
1 – A/C Active Closed
2 – A/C Active Open
3 – LIM Active Closed
4 – LIM Active Open
2 – A/C Active
Open
VEPS or
DRS
6
Fast Idle Spd
Air Cond
Input
Fast Idle speed
used when A/C
is activated
500 – 3000 RPM
600 RPM
VEPS or
DRS
19
Air Condition
Enable Auto
Fan
Enables/disables
the fan when the
A/C is on
0 – Disable
1 – Enable
1 – Enable
VEPS or
DRS
Table 4-2
Air Condition Status Programming Options
4-4
All information subject to change without notice.
(Rev. 01/07)
7SA827 0701
Copyright © 2007 DETROIT DIESEL CORPORATION