C7.1 Industrial Engine and Generator Set Caterpillar

The Mode Switches can be used to change the performance characteristics of the engine. The electronic service tool is used to program the characteristics. Select the "Service" drop-down menu and then select "Engine Operating Mode Configuration". A maximum of two switches can be used. "Switch 1" is connected to J1:62 Mode Switch 1. "Switch 2" is connected to J1:64 Mode Switch 2. The other contact on both switches is connected to J1:18 Switch Return.

Number of Switch Inputs

This configuration parameter is the total number of switches that are used. The switches can be individual switches or a multiple rotary switch.

Table 1

Range	Default
0 to 2	0

Mode Selection Number

This parameter is a non-programmable parameter that represents the number of possible combinations of switch positions. This parameter is based on the value that is programmed into the "Number of Switch Inputs" parameter.

Mode Selection Switch Input 2 and Mode Selection Switch Input 1

The number of these non-programmable parameters that are visible depends on the value that is programmed into the "Number of Switch Inputs" parameter. "Open" signifies that the switch is in the OFF position. "Ground" signifies that the switch is in the ON position.

Rating Enabled

If "Yes" is selected on the drop-down menu, the ECM is programmed to use the values in the "Rating Number", "Throttle 1 Droop Percentage", "Throttle 2 Droop Percentage" and "TSC1 Droop Percentage" for the given combination of switch positions.

Table 2

Values	Default	Factory Password
Yes No	No	No

High Idle Speed

The "High Idle Speed" is the maximum engine rpm.

Table 3

Minimum	Maximum	Default
1800 rpm	2800 rpm	2420 rpm

Rating Number

This parameter is the engine rating that is used by the Electronic Control Module (ECM) for a given combination of switch positions. There is a maximum of four ratings in a flash file.

Table 4

Range	Default	Factory Password
1 to the maximum number of ratings in the currently installed Flash File	1	No

Rated Speed (RPM)

This parameter represents the engine speed that is selected when the mode switch or the mode switches are in a particular position.

Table 5

Range	Default	Factory Password
"Programmed Low Idle" to "Programmed High Idle"	2100 rpm	No

Engine High Idle Speed (RPM)

This parameter represents a maximum of 112% of the rated speed that is selected when the mode switch or the mode switches are in a particular position.

Table 6

Range	Default	Factory Password
"1800 to 2800 rpm"	112% of rated speed	No

Governor Type

This parameter represents the mode of operation of the governor that is installed on the engine.

Table 7

Range	Default	Factory Password
"Min/Max speed (rpm)" or "All Speed"	All Speed	No

Throttle 1 Droop Percentage

This parameter represents the amount of droop that is applied to the "Throttle 1" input.

Table 8

Range	Default	Factory Password
0 to 10 percent	5.0%	No

Throttle 2 Droop Percentage

This parameter represents the amount of droop that is applied to the "Throttle 2" input.

Table 9

Range	Default	Factory Password
0 to 10 percent	5.0%	No

TSC1 Droop Percentage

This parameter represents the amount of droop that is applied to the "Torque Speed Control 1(TSC1)" input.

Table 10

Range	Default	Factory Password
0 to 10 percent	5.0%	No