What are these two wires: Red and White that come out of Cable of Z axis for ?
Please see the picture. One end has a label HOLD – and the other HOLD+
The red and white wires with letter HOLD+ and HOLD-, they are for the brake of the Z axis.
We need to connect these HOLD+ and HOLD- wire to the brake through a small relay, which will protect the driver.
For better understanding, attached you may find connection of the HOLD+ and HOLD- with relay and GSK218MC-H or GSK218MC-V.