1756-HSC / Line Driver Output Encoder going backward

Rob S.

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• Mar 15, 2013

• #1

I'm sorry , this is one of those dumb ones. I have a Line Driver Output Encoder going backward on a 1756-HSC. Am I correct in saying thatI can swap Out A+ and Out A- , Out B+ and Out B- , Out Z+ and Out Z-to change the direction of what I am seeing in my program.Thanks in advance,

 

widelto

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• Mar 15, 2013

• #2

yes, that is correct.

 

Rob S.

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• Mar 22, 2013

• #3

I switched Out A+ and Out A- , Out B+ and Out B- , Out Z+ and Out Z-to change the direction , and it is still counting down. Is there something I needto change in the 1756-HSC ? Thanks,

 

bernie_carlton

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• Mar 22, 2013

• #4

I believe there is a configuration setting to change direction but I'll address the wiring.

Method 1, swap A pair with B pair keeping polarity

Incorrect    Correct



A+     ->     B+

A-     ->     B-

B+     ->     A+

B-     ->     A-

Z+     ->     Z+

Z-     ->     Z-

Another method, but perhaps more confusing, invert just one pair

Incorrect    Correct



A+     ->     A-

A-     ->     A+

B+     ->     B+

B-     ->     B-

Z+     ->     Z+

Z-     ->     Z-

 

Rob S.

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• Mar 22, 2013

• #5

Thanks Sir. I did the first option you had and it worked. I'm sorry , I should of knew that.