PEC017
5/3/2018
Page
46
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engagement communications between the remote PTO module and the cab
electronic control unit (CECU) or via legacy hardwired connection directly from the
PTO device to the engine controller. Remote switch and remote throttle signal types
must be specified within the drivetrain parameters on the CECU. Additional
networking interface parameter changes are required within the CECU depending on
the application requirements in order to allow remote PTO control modules to
function properly via the B-CAN network. For additional information about the
required changes to the CECU parameters, consult the appropriate body builder
manual for the vehicle.
PACCAR MX engines allow for remote engine speed control functionality via TSC1
messaging from remote control modules by configuring
Enable Engine Speed
Control via TSC1 (
. In addition, a hardwired or CAN PTO engagement
feedback signal must be provided to allow the engine to enter PTO mode to enable
PTO engine speed control and safety interlocks, and
Signal Source for Remote Main
Switch (
must be configured according to the signal source of the PTO mode
request. TSC1 messages must be broadcast from source address 36 (0x24) to
destination address 0 (0x00). Messages must also specify control purpose P3: PTO
Governor to allow the engine controller to respond to TSC1 requests.
The following table describes the J1939 PTO, EEC2 and TSC1 messages supported
by the MX engines while programmed with Remote PTO configurations:
PTO (PGN 65264) – PTO On/Off and Engine Speed Controls
Name
SPN
SB
L
Description
Engine PTO Governor Enable Switch
980
40
2
Switch signal which indicates that the
PTO governor toggle switch is in the
enabled (ON) position
0 = Off
1 = On
2 = Error
3 = Not available
Engine PTO Governor Set Switch
984
48
2
Switch signal of the PTO control
activator which indicates that the
activator is in the position to "set" the
engine PTO governor set speed.
0 = Off
1 = On
2 = Error
3 = Not available
Engine PTO Governor Resume Switch
982
52
2
Switch signal of the PTO control
activator which indicates that the
activator is in the position to "resume" a
previously established PTO governor set
speed.
0 = Off
1 = On
2 = Error
3 = Not available
Содержание MX Series
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