OVERVIEW

There are two modules involved in the ASCO 5101 Engine Start Monitoring System, namely, the ATS Engine Start Module and the Generator Engine Start Module.



The ATS Engine Start Module can be factory-installed to the ASCO ATS (Series 300, 4000 and 7000) as accessory 7ES. It can also be field added by ordering field kit PN 1256473. Each ATS will need its own ATS Engine Start Module.

The Generator Engine Start Module will need to be ordered separately using kit PN 1256475.  Each Generator Engine Start Module can support one generator and up to eight ATS Engine Start Modules. It has one set of Form C output contact for the generator engine start and one set Form C output contact for alarm condition monitor. It is to be powered up by the generator battery or by any other independent DC power source.

The top-level architecture of the ASCO 5101 Engine Start Monitoring System:





INSTALLATION

Step 1. Wire the close-to-start (also called Feature 7) dry output contact from the ATS to TB1 of the  ATS Engine Start Module. This step is only necessary for field-installed kits. This is already done at the factory when accessory 7ES was ordered with the ATS.



Step 2. Wire the ATS Engine Start Module output (TB2) to one of the input channels on the Generator Engine Start Module.  Installation of the Generator Engine Start Module must be in a segregated communications/controls compartment of the generator.


Step 3. Repeat Step 1 and Step 2 if there are multiple units.



Step 4. Confirm and adjust DIP switches on the Generator Engine Start Module as necessary.

The switches S1-1 to S1-8 correspond to the input channels 1-8 respectively. Toggling left will enable the channel while toggling right will disable it.

The S2-1 switch corresponds to the alarm delay. Toggling left will turn it off (instantaneous, no delay) and toggling right will turn it on (3 sec delay).

The S2-2 switch is the reference for the start signals wired into the 5101-ATS modules. This should be set according to the source engine start signals, “Start on Close” if the source signal closes to start the gen and “Start on Open” if the source signal is starting the generator when it opens. All the 5101-ATS modules must follow the same convention.

Step 5. Wire the Generator Engine Start Module to DC power. The acceptable range is 9 - 27 VDC.


Step 6. Wire the Generator Engine Start Module’s Engine Start output to the generator. Select the type of engine start signal that the generator requires.  Use the COM and NO side of the output contact (terminals 2 and 3) if requiring contact opening to signal generator start OR use the COM and NC side of the output contact (terminals 2 and 1) if requiring a contact closure to signal generator start.

Step 7. Wire the Generator Engine Start Module’s alarm output to the monitoring device (supplied by others). The terminal designations NO and NC are with reference to the de-energized state of the alarm output relay. The alarm output relay is energized under normal conditions and de-energized under alarm conditions. Pair the COM terminal with either the NC or NO depending on what the alarm monitoring device requires.

Step 8. Check the LEDs and the states of the output relays on the Generator Engine Start Module for the correctness of status.

Published for:ASCO Power Technologies USA