Pump sequence using Delta PLC

[sudanee]

Hello
I need help to program pump sequence using Delta CPU 14ss2 (14SS211R)
The program in Auto mode will be
Cycle A - Pump 1 and Pump 2 Run.( Pump 3 on stand By)
Cycle B - Pump 2 and Pump 3 Run.( Pump 1 on stand By)
Cycle C - Pump 1 and Pump 3 Run.( Pump 2 on stand By)
Cycle A –again
Cycle will changed on Time 8 hours for each cycle
In any cycle if one of the Pumps fails or trip then the standby pump will come in Operation.

Thank you

 

[gclshortt]

What part of the program are you having trouble with?
I would set a counter that increments after 8 hours. The counter resets after it gets to 4. (Number of Cycles)
Depending on the count value do your logic.

Regards,
Garry
http://www.accautomation.ca

 

[sudanee]

Thank you galsworthy I appreciate your input
I will do it as you said
Regards