Hypertherm XPR170 - Replace the Solid State Relay

Plasma Power Supply
1
XPR170 Field Service Bulletin 810410 27
Replace the solid state relay

Refer to Fans on page 133 for location and part number.
1. Complete the following procedures:
a. Remove the power from the cutting system.
b. Refer to Remove the right-side (liquid-cooling-side) panel on page 62.

Keep all nuts and screws that you remove.
2. Loosen the wire screws and remove the wires.
3. Remove the 2 mounting screws .
4. Remove the solid state relay.
5. Use the 2 mounting screws to install the solid state relay with T1, 2 in the upper-left corner, as
shown.
6. Install the wires as shown and tighten the wire screws.
7. Install the right side panel.
1
T1
2
L1
1
A1 (+)
3
A2 (-)
4
3
4
2
1
White
Black
Red
Black
1
22
Output or load side Input or control side
2