Operating Instructions

Startup

Timed Cycles

Pump off / LPTV

Continuous Run

Pump off / Timed

Other Features

Tachometer

Safety Shutdowns

Start Warning

Stop Key

Hot-Connect

Pause / Resume

Low Oil Pressure Shutdown

Start Failure

Intelligent Re-Start

Minimum Run-Time

Elapsed Run-Time

Oil-Change Reminder

Note: These instructions apply only to engines and cabling supplied by RPI. DO NOT attempt to connect the ISS-Advanced to any engine or cable not supplied by RPI. Doing so can result in damage to the engine and/or the ISS-Advanced. For retrofit applications, contact RPI. We will be happy to assist you with analysis of your needs.

Startup

The engine ignition switch must be in the “ON” position for electronic ignition engines (18HP and 25HP Kohler Engines). The ignition switch must be in the ”OFF” position for battery ignition engines (35HP and 65HP Wisconsin Engines). When you first power up or reset the ISS-Advanced, you will see a screen identifying the product, followed by a screen identifying the engine type and software version of the unit. (May not apply to older units, contact RPI for an upgrade) Pressing the SETUP key will bypass these screens and take you to the mode choice menu. Back to Top

Mode Choice Menu

This screen allows you to choose which operating mode the controller uses. There are four modes:

1. Timed Cycles Only: Allows you to program the controller for timed operation. Valid ON and OFF times range from 1 minute to 99 hours and 99 minutes. Time entry begins with hours. To enter hours, press the desired numbers. For hours from 1-9, enter number followed by ENTER key. For hours over 9, enter in order. For example, to enter 10 hours, press 1 then 0, time entry will then proceed to minutes. To skip entering hours, simply press ENTER key, or enter 00. Either will take you to minutes entry. Follow same procedure as when entering hours. If you make a mistake in time entry, press the CLEAR key to start over. The controller will ask for verification of time entered. Use ENTER key to accept, CLEAR key to re-enter time. Back to Top
    
2. Pump off / LPTV: Allows control of engine by use of external Level, Pressure, Temperature, or Vibration (or other type) sensor switches. By connecting the Blue and Brown wires of the cable to your sensors/switches, the controller will start or stop the engine when the switch activates. Switching the Blue wire to Ground will cause the controller to start the engine. Switching the Brown wire to Ground will cause the controller to stop the engine. In this mode, the controller displays the amount of time that the engine has run or been off. Manual override is possible at any time using the START/RUN and STOP keys. Back to Top
    
3. Continuous Run: This mode allows continuously running the engine. You must use the START/RUN key to start the engine, STOP key to kill the engine. In this mode, the controller displays the amount of time that the engine has been running. Back to Top
    
4. Pump off / Timed: This mode will continuously run the engine until the Brown wire is switched to Ground. The controller will then kill the engine and stay off for the amount of time programmed. The controller will then re-start the engine and run until the Brown wire is switched to Ground again. Use the same procedure for time entry as described in number 1 above. In this mode, the Blue wire has no effect. Back to Top

Other Features

Tachometer: Gives accurate reading of engine speed. Updated once per second, it instantly responds, even to wide changes in engine speed. Back to Top

Safety Shutdowns: RPI Kohler engines come equipped with (2) safety shutdown inputs. Additional Safety shutdown inputs, up to 5 total, are an available option. Contact RPI for details. Back to Top

•  With either engine type, the Gray wire is Safety shutdown #1.
•  With Kohler engines, the Green wire is Safety shutdown #2.
•  Active in all operating modes. Connect these wires to your safety sensors/switches.
•  Switching any of these wires to Ground will cause the controller to kill the engine, display which switch was activated, and display the amount of time the engine has been off due to Safety shutdown. To avoid false shutdowns, the switch must remain engaged for at least 1 second, otherwise it will be ignored. Once you have resolved the problem that caused the shutdown, press RESET key to program the controller. Back to Top

Start Warning: In any operating mode, the controller will sound a warning beeper before starting the engine. The display will show “Starting engine” and a countdown beginning at 10 seconds. During the last 3 seconds of the countdown, the beeper will alternate on and off to let the operator know that startup is imminent. For test purposes, this warning can be bypassed by pressing the START/RUN key. Back to Top

Stop Key: Pressing the STOP key will kill a running engine at any time. Back to Top

Hot-Connect: The controller can be connected to a running engine without killing the engine first. The display will acknowledge that the engine is running, then proceed normally. Likewise, the unit can be RESET and re-programmed with the engine running. Back to Top

Pause / Resume: In Timed Cycle Only mode, pressing the STOP key will kill the engine and pause the timer at the current amount of time remaining in the cycle. Pressing the START/RUN key will re-start the engine (after the 10 second countdown), and the cycle will resume from where it was paused. Pressing the SETUP key while paused will allow you to enter new cycle times. Back to Top

Low Oil Pressure Shutdown: All RPI engines are equipped with an oil pressure sensor. This sensor is ignored for the first 30 seconds of run-time, to allow the engine oil pressure to rise and stabilize. After 30 seconds, if a low engine oil pressure situation occurs, the controller will sense this and shut down the engine. A message will flash on-screen, notifying the operator of the low oil pressure condition. Once the problem is resolved, press RESET to re-program the controller. Back to Top

Start Failure: When attempting to start the engine, the controller will engage the starter motor for up to 7 seconds. If the engine fails to start, the controller will display “Failed to Start – Retry in” and a countdown from 30 seconds will be displayed. During the last 10 seconds, the normal 10 second countdown, with warning beeper, will occur. Pressing START/RUN during the 30 sec. countdown will jump to the 10 second warning. Pressing START/RUN again will bypass the 10-second warning. The controller will attempt to start the engine up to 5 times, with the 30-second wait between attempts. If the engine fails to start after 5 attempts, the controller will display a message notifying the operator of this. Once the problem that prevented startup is resolved, press RESET to re-program the controller. Back to Top

Intelligent Re-Start: If the engine stalls for abnormal reasons (not Safety shutdown or other normal control functions), such as fuel starvation, etc., the controller will automatically attempt to re-start the engine, up to 5 times. If in Timed Cycle mode, the full cycle time will be run after re-start. Back to Top

Minimum Run-Time: The controller will regard any run-time less than 30 seconds to be a failed start attempt (1 of 5). This is useful if the engine starts up, but dies in less than 30 seconds, to prevent running the battery down by repeatedly starting. Back to Top

Elapsed Run-Time (E.R.T.): Any time the running engine is stopped (except by Safety shutdown), the controller will display the combined total time that the engine has run. This is useful for monitoring the amount of run-time between oil changes. Once the oil has been changed (or whatever you wish to monitor), pressing the CLEAR key will zero the E.R.T. Also displayed is the total elapsed time, in hours, that the engine has run since installation. This can only be cleared by RPI. This is useful for warranty claims. Back to Top

Oil-Change Reminder: When the E.R.T reaches 720 hours, the controller will display a reminder message notifying the operator that the engine oil should be changed. This reminder will display every time the engine stops, until the operator clears the E.R.T Back to Top