Hypertherm HSD130 HySpeed Plasma - Manual (Page 105)

INSTALLATION
HySpeed HSD130 RHF Instruction Manual 3-37
Examples of input circuits
Output from
CNC/PLC
External relay
(AC or DC)
1. Relay interface
+24 VDC
HSD
Power
ground
2. Optocoupler interface
CNC/PLC
+24 VDC
HSD
Power
ground
Transistor-output
optocoupler
24VDC
CNC/PLC +24 VDC
HSD
Power
ground Power
ground
Active-high drive
3. Amplified-output interface
Note: The external relay's life may be improved by adding a
metallized-polyester capacitor (0.022µF 100V or higher) in
parallel with the relay contacts.
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