Right side connections -5, Digital readout connection -5, Right side connections – Hypertherm LR2075 User Manual
Page 20
INSTALLATION
LR
2075 Laser Head Instruction Manual
3-5
Right side connections
Manual focal-positioning ring
Cooling water (in/out):
1/8" NPT, internal thread
Digital readout
cable
Position scale
White = volts +
Blue = signal
Brown = common
Digital readout connection
The nozzle position can be viewed at a remote location by using the signal from the digital readout cable, which is
connected to a linear potentiometer inside the cutting head. The supply voltage can be between 1 and 10 VDC and the
potentiometer resistance is 1500 ohms. The output voltage on the signal wire will be proportional to the supply voltage
and nozzle position.
Caution:
The current on the signal wire can be a maximum of 1 microamp (uA), so a very high
impedance sensor is required. Current levels greater than 1 uA can damage the
potentiometer.