Spindle Encoder Differential Error

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viscoelastic
Posts: 17
Joined: Fri Nov 26, 2021 2:38 pm
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Spindle Encoder Differential Error

Post by viscoelastic »

First of this machine is a Bridgeport Explorer X26. The spindle encoder had 3 wires. My guess on colors was Red + Blk - Wht "A" signal. Once wired and enabled in the parameters, I received an encoder differential error. One, did I wire it correctly, two what did I goof up on?

Thanks!!
cncsnw
Posts: 2429
Joined: Wed Mar 24, 2010 5:48 pm

Re: Spindle Encoder Differential Error

Post by cncsnw »

If it only has three wires, it is not a suitable encoder.

You need a "quadrature", "differential" encoder: one with both A and B channels, and with two complementary wires per channel.

If you plan to do rigid tapping with it, you also need an index pulse (Z channel), also differential.

That makes eight wires, as shown on most any Centroid system schematic.
viscoelastic
Posts: 17
Joined: Fri Nov 26, 2021 2:38 pm
Acorn CNC Controller: No
Allin1DC CNC Controller: Yes
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: A901056

Re: Spindle Encoder Differential Error

Post by viscoelastic »

cncsnw wrote: Fri Jan 14, 2022 12:15 am You need a "quadrature"
Thanks, That makes sense.
cnckeith
Posts: 3868
Joined: Wed Mar 03, 2010 4:23 pm
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CPU10 or CPU7: Yes
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Re: Spindle Encoder Differential Error

Post by cnckeith »

Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
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