ADAPTER 8T4128 - Caterpillar

Problem List
Troll Mode does not activateProbable Causes
The PCP has lost communication from either the Port ETP or the Starboard ETP
The ETP is not functioning
There is fault in the cabling
Table 1
Troll Calibration Parameters
Parameter Minimum Value Maximum Value Units Default
Troll Mode Advanced/Traditional N/A Traditional
Troll Set Speed Programmed Low Idle Max Troll Set Speed RPM 700
Max Troll Set RPM 550 1200 RPM 1000
Percent Slip @ Idle (Traditional Troll) 20 100 % Slip 100
Percent Slip @ Idle (Advanced Troll) 20 100 % Slip 85
Max RPM @ Full Engaged (Advanced Troll) 550 1200 RPM 900
Number of Engines 1 2 2
Xsmn Type ZF 220
ZF2000
ZF2500
TD MG Current
TD MG Voltage
TD MGX Series N/A ZF 220 For TD MGX Series gear boxes, set the transmission neutral pressure to 0 psi in order to disable the Transmission Not Responding diagnostic.Troll Mode
Traditional Troll - While the traditional Troll Mode is active, pressing, and holding the SVM button (on the ICH or button panel) will cause the troll Set Engine Speed to increase up to the Max Troll set Speed value and then pressing the N (Neutral Lockout) will cause the engine speed to decrease to programmed low idle. The new Troll set Speed will be reset to idle (0 % throttle) when troll mode is deactivated or if the system power has been reset. Move the throttle lever to control slip (idle position is Max slip, increasing throttle position decreases slip.Advanced Troll - Advanced Troll provides greater control of the transmission slip. The throttle lever is used to control transmission slip in conjunction with engine speed to increase slip at lower engine speeds. This also provides a smooth transition from troll to the non-troll application. As the throttle increases to the Max Troll Set Speed, engine speed will increase and the percent slip will decrease from 100 percent at idle to 20 percent at maximum troll speed (default value 1200 rpm). From maximum troll set speed to WOT the transmission is fully engaged.Troll Set Speed - Minimum troll engine speedMax Troll Set RPM - Maximum Speed at which Troll Mode will kick out.Percent Slip @ Idle (Traditional Troll) - The amount of slip when the throttle is in the low idlePercent Slip@Idle (Advanced Troll) - The amount of slip when the throttle is in the low idle positionMax RPM @ Full Engage (Advanced Troll) - Engine speed at which the troll slip is commanded to Full EngageNumber of Engines - Designates the number of engines that are in the vessel.Transmission Type - Select the type of gear use in the vesselElectronic Troll Processor (ETP) Connections
Illustration 1 g03329853
ETP connections
(1) 323-7317 Engine Speed Control Gp
(2) ETP to Troll Cable 226-0417 Control Harness As or 243-4211 Control Harness As or 243-4212 Control Harness As
(3) 226-3424 Speed Sensor Gp
(4) To troll valve
(5) 308-0432 Pin As
(6) 346-1577 Connector
(7) 225-6107 Panel Harness As
(8) 6-pin engine connector
Table 2
ETP Cable Numbers and Default Signals Table
Signal Requirements Troll On/Off Part Number
Max Slip Min Slip
Twin Disc 5 V 0 V