HELP Connecting acorn to Eurotherm VFD

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agvengineering
Posts: 10
Joined: Sat Feb 17, 2018 1:32 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
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CNC Control System Serial Number: 38D2693D1296-0118180550
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CPU10 or CPU7: No

HELP Connecting acorn to Eurotherm VFD

Post by agvengineering »

Hello,

I am new to the forum I am from Costa Rica and i need some help connecting my vfd to my acorn.

I have checked the diagram for generic vfd but looking at mine I am not sure how to connect it.

I have attached some pictures of the control ports for reference.

Any help is much appreciated.

Best regards
Control wiring
Control wiring
15188909633221129522953.jpg
Gary Campbell
Posts: 2164
Joined: Sat Nov 18, 2017 2:32 pm
Acorn CNC Controller: Yes
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CNC Control System Serial Number: Acorn 238
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CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Marquette, MI
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Re: HELP Connecting acorn to Eurotherm VFD

Post by Gary Campbell »

Try these:

Acorn ANGND to VFD term 1
Acorn AN OUT to VFD term 2

VFD Term 6 to a relay common That relays NO terminal to VFD terms 7 and 8 If only using CW rotation (as SPINFWD)

If CCW is required then VFD term 6 to a second relay common with relay NC term to VFD term 8 ( as SpINREV)
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