FRC RTU1-IS, Руководство по эксплуатации

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REV 0999 RTU1-IS
B) ISM engines:
In order for the RTU to operate on the Cummins ISM engines,it is important that the
ECM be programmed properly and some of the inputs are enabled.
1) Program setting:
a) The remote throttle option in the ECM has to be turned on. This cannot be done
using the diagnostic tool. An authorized dealer with the 'INSIGHT' service tool is
needed to turn the remote throttle option on.
2) Enabling the 'Remote Throttle ON/OFF' input
In order for the remote throttle to be active, the 'Remote Accelerator Switch' input (50
pin OEM connector pin 43) has to be grounded. The 'Remote Accelerator Switch'
input is enabled by grounding pin 43.
3) Enabling the 'All-speed' governor when the pump is engaged
For the RTU to work properly, the 'All-speed' governor mode has to be selected in the
ECM. Note: Select the 'All-speed' governor only when the RTU throttle is ac-
tive, e.g: the pump is engaged .To select the 'All-speed' governor mode, the 'Accel-
erator Governor Switch' ( pin 25 ) has to be grounded. This is assuming that the cab
foot throttle is set up as min/max (Automotive ) governor. (The 'Accelerator Governor
Switch' toggles the operating modes, ie: if the default mode is 'All-speed' governor,
grounding the switch will change the control mode to the 'Automotive governor.)
4) Remote Throttle input
Connect the Remote Throttle cable to the 50 pin OEM connector pin 48, pin 49, and
pin 21. Refer to Figure 1 for details.
Interface to the ECM