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Topics - ssali

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1
Technical support / VFD to PLC
« on: February 04, 2009, 09:12:29 AM »
HI.
 
I wanted to know how to connect a VFD to a PLC.
I am sorry for very basic questions, but i have never used this equipment before.

Thanks in advance.

Sara.

2
Technical support / sequencer timing
« on: January 29, 2009, 12:09:34 PM »
Hi.

I am very new to PLCs
I am trying to use a sequencer to be able to start and stop a motor. i understand that the sequencer needs to go from on to off to increment. i tried using 1.0 s clock, which runs each sequence for 1.0 second. My problem is that i want to run sequence 1 for 30 sec seq 2 for 5 sec and seq 3 for 30 sec..and so on. does anyone have any idea on how to do it?

I would really appreciate any help.

Thanks :)

sara.

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