# Skip the GX12-6P connector and go direct?

**URL:** <https://forum.onefinitycnc.com/t/skip-the-gx12-6p-connector-and-go-direct/25087>\
**Category:** Spindle/VFD (Aftermarket/Unsupported)\
**Created:** [February 2, 2024, 2:27pm UTC](https://forum.onefinitycnc.com/t/skip-the-gx12-6p-connector-and-go-direct/25087 "2024-02-02T14:27:11Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [February 5, 2024, 5:22am UTC](https://forum.onefinitycnc.com/t/skip-the-gx12-6p-connector-and-go-direct/25087/9 "2024-02-05T05:22:24Z")

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Hey Alan,

this is identical to what I show [in my table](https://forum.onefinitycnc.com/t/hitachi-wj200-omron-mx2-wiring-to-masso-gx12-6-pin-connector/20896/6) with the exception that here you use +24 V as the common on Masso pins 5+7 (and not 0 V=L=gnd as common), and pins 4 and pin 6 for CCW and CW (source logic),

I used 0&nbsp;V (=gnd=“L”) as common on Masso pins 4+6, and Masso pins 5 and 7 for CW and CCW (sink logic), because this example from the [Masso Documentation website](https://docs.masso.com.au/wiring-and-setup/setup-and-calibration/spindle-vfd-examples/hitachi-vfd) shows it this way:

 ![Masso_Documentation_VFD_examples_Hitachi_S1_var1](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/0/f/0fa3d46029accba893e13057e17dddc63c101201.png)  
_Image: [Spindle VFD examples → Hitachi VFD – Masso Documentation](https://docs.masso.com.au/wiring-and-setup/setup-and-calibration/spindle-vfd-examples/hitachi-vfd)_  
_(It shows the Hitachi NE-S1, but the ports and their labels are identical with the Hitachi WJ200)._

You did not show to what your “PLC” terminal is connected, to “P24” (+24&nbsp;V) or to “L”=gnd=0&nbsp;V? One question: Where is **this bridge (=“short bar”)** installed on your VFD, like on the left image or like on the right image:

> [@Hitachi WJ200/Omron MX2 wiring to Masso GX12 6-pin connector](https://forum.onefinitycnc.com/t/hitachi-wj200-omron-mx2-wiring-to-masso-gx12-6-pin-connector/20896/6):
>
> ![WJ200_Manual__Selecting_sink_or_source_inputs](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/c/9/c9f5829f6553dd4ab1ae8c3b8b3dededbeb7755e.png)

Both setups should work, but the one I show (the one from the Masso Documentation website) ⚠ can of course only work **if “PLC” is bridged to “P24”** , and not to “L”.

 ![Omron_MX2_Manual__Sinking_vs._Sourcing_Input_Terminals_P202_PDF228](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/8/a/8a6dfca0f6556d0d8ab26abd549564ce0dbdec26.png)  
_– Source: [Hitachi WJ200](https://www.hitachi-iesa.com/sites/default/files/supportdocs/WJ200_Instruction_NT325X.pdf) or [Omron MX2](https://assets.omron.eu/downloads/manual/en/v5/i570_mx2_users_manual_en.pdf) manual_  
_Image: Wiring on Sourcing vs. Sinking Inputs_

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#### Further Reference

 ![WJ200_Manual__Example_Wiring_Diagram](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/f/2/f293ca13ea036bb42b63ae6cf133c1dff02b3927.png)  
_– Source: [Hitachi WJ200](https://www.hitachi-iesa.com/sites/default/files/supportdocs/WJ200_Instruction_NT325X.pdf) or [Omron MX2](https://assets.omron.eu/downloads/manual/en/v5/i570_mx2_users_manual_en.pdf) manual_

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