Grounding Requirements; Power Cord Grounding; Protective Earth Ground - Hypertherm Command THC Instruction Manual

SETUP

Grounding requirements

To ensure personal safety and proper operation, and to reduce electromagnetic interference (EMI), the THC system
must be properly grounded.

Power cord grounding

The THC control module must be properly grounded through the power cord according to national or local electrical
codes.

Protective earth ground

• Install protective earth (PE) grounding cables to the 3 THC components as shown in Figure 3-13. Grounding
must comply with national or local electrical requirements.
• The PE cables must be supplied by the customer.
Plasma interface
assembly *
THC control module
3-20
7
* HT4400: See note on page 3-12.
Figure 3-13 THC component PE grounding
CommandTHC for X-Y Table Instruction Manual