Zhong Hua Jiang CNC Spindle,110V 1.5KW and H100 VFD. Need Modbus settings

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey Chris,

regarding the H100 VFD, that is usually identical to the V70 VFD, we have a search function in this forum.

Regarding wiring the magnet end, this is not necessary. A spindle’s housing is already connected to ground by its PE wire to the system’s ground, so the magnet end of the XYZ Touch probe is no more necessary. See here for details. Also all moving parts of a CNC machine Must be grounded separately (see also Parts and tools you need to ground your Onefinity). So this applies also to the Z slider into which the spindle is clamped, which like every moving part needs its own grounding wire.

@Aiph5u

Ground the machine in accordance with the regulations!

The machine in which the motor spindle is installed must be grounded separately for each moving machine component. Even if, for example, the moving axes of a milling machine are electrically conductively connected to each other via ball screws and linear bearings, this electrical connection is insufficient for the protective earth connection and must be supplemented by a separate earth connection for each axis in accordance with VDE regulations. A protective conductor test must be carried out individually before commissioning.

– Source: Mechatron HFS Series High-Frequency Spindle Operating Manual

Regarding spindle cable, see here and here.

@Aiph5u

The spindle cable shield should always be connected at both ends. At the spindle end it should be connected to the connector housing internally, and the connector should not allow it to be connected any other way. Here you can see how the cable shielding is connected inside spindle connector (figure 3, see “PS2”).

I would not recommend anyone to connect a spindle and a VFD themselves who has not acquired at least the part of an electrician’s knowledge necessary for this purpose.

Furthermore, I would not recommend anyone to connect a spindle cable without having read this document carefully:

• Begin with the End in Mind - Proper VFD Cable Termination

Even electricians usually have not this knowledge since it deals with shielded power cables.