Ok,
the top left three green Pilot Lights indicate that the ATS Control Board is sensing Utility Power L1/L2, L1/N, L2/N
the top right three green Pilot Lights indicate that the ATS Control Board is sensing Generator Power L1/L2, L1/N, L2/N
The three Pilot Lights in the middle indicate:
Green: ATS Control Board is ON - 24 VDC Power from Generator OK
( System draws 30 mA idle current during monitoring - supplied by Genset Batteries - Genset has to have 24 VDC 2A or 3A Float/Trickle Charger attached constantly )
Orange: ATS Control Board signal to our Autostart Board in Genset to start/run Generator
Red: ATS Control Board has sensed that Generator is up and running and main Contactor in Genset has been activated after warm up and Power is available in ATS Cabinet for Power Transfer
K2 will now be turned ON and power is available to Breaker Panel from GENSET
Left Switch:
Off: Battery Power to ATS Control Board is disconnected - ATS Board no longer active - ATS will only supply Utility Power
On: ATS in full monitoring and transfer mode
Right Switch:
Off: Will turn off K1 and K3, simulating a full utility power outage which starts the entire transfer sequence with full load transfer to Genset - A optional weekly monthly timer can be added to automate exercise function / test
On: K1 and K3 are turned on, supplying Utility Power to Breaker Panel via K1
The right switch can also be used to turn all power off to Breaker panel by also turning off Switch S1 ATS Power - this is for convenience as the ATS system now functions as a Disconnect Switch - for emergencies or repairs
The Utility Loss Sequence as follows:
1. Loss of Utility Power is sensed
2. 15 second wait time, if Utility Power is still out then it will proceed to step three other wise system goes back to standby
3. Start / Run Signal to Autostart Board
4. ATS Control Board waits now until GENSET has started, warmed up and closed the main contactor meaning full power is available
5. ATS Control Board waits now and additional 15 seconds for power to stabilize after main contactor has engaged
6. Power is transferred with K2 to Genset
7. Upon sensing Utility Power again, system will use GENSET Power
8. When Utility Power is sensed, K2 is disconnected first and then K1 is energized to transfer power back to Utility
9. Genset remote start signal id turned off - Genset will go into cool down
10. Depending which MEP Genset you got - the three top right Pilot Lights will go off either immediately, MEP 805B / 806B or any MEP with Autostart Board and our extra Kext Relay or any other MEP with just our Atustart Board these three Pilot Lights will stay on until Generator shuts off after cool down
11. ATS Control Board is now back in standby / monitoring mode
We have the following DIP Switch Settings available on our ATS Control Board
Out ATS Control Board is available for Single Phase 240/120VAC and three phase 230/208 or 480/440VAC available
This system here as shown is a enhanced version of the transfer switch example we have in our basic installation Manual for the Autostart Kit MEP 002A/003A and in the two Videos about transfer switches on our YouTube Channel
Our ATS Controller can be used on almost any ATS like the RTS Series from Generac or anything you may want to built yourself
It will also work with any Generator which has two wire start capability
This system will also work with optional UPS Systems to bridge the gap between Utility Loss and Genset Power applied
(I was not able to rotate pictures to correct orientation once uploaded - they are correct on PC)
Please feel free to ask questions
View attachment InstallationManualMEPATS.pdf