Torchmate
CNC
I/O
Expansion
Board
Guide
18
10.
Turn the “GAIN 1” screw so that the voltage is stable at 10 volts. (Gain 2 currently not
used)
11.
You have now calibrated the I/O Expansion board for use with analog spindle control.
Specifications
In this section are compiled relevant attributes of the USB I/O Expansion Board and information
about accessories.
Board Dimensions:
Mating Connectors - Internal I/O:
7.92 x 4.59 inches (201 x 117 mm)
JP20-22: 50-pin headers are 3M brand 0.100”
low-profile, four-wall 2500 series; mating
connectors include 3000 series wiremount
socket for ribbon cable.
Digital Inputs
32 each (4 banks of 8), optically isolated;
1 each quadrature, differential encoder input
including A, B and INDEX
JP40, JP50, JP60-61: 2 mm headers are
Molex/Waldom Milli-Grid™ 87831 series;
mating connectors include series 87568 for
ribbon cable, series 51110 for discrete
terminals (series 50394).
Digital Outputs
32 each (4 banks of 8) 24V low-side relay
driver, 250 mA each
8 each ACT logic (TTL/CMOS) 5V 24mA
each
2 each (SPON & SPDIR) 24V push-pull
driver, 250 mA each
TB70, TB71: 2-pin terminal blocks accept 16-
26 AWG wire
USB I/O Expansion Board Kit Contents
1 each USB I/O Expansion Board
3 each #4-40 x 7/8” Nylon Standoff
6 each #4-40 x 1/4” Phillips Pan Screws
2 each #6-32 x 1/4” Phillips Pan Screws
1 each Right angle mount bracket #6-32 holes
1 each Aluminum Rear Panel with
USB I/O Expansion Board cutouts
Analog Inputs
2 each, 10 bit ADC, 0-10V,
50 k
Ω
input impedance
Analog Outputs
2 each 12-bit DAC, 0-10 V
Power Requirements:
Available Accessories
0.7 W to 3 W depending on output states,
power supply configuration and load; board is
powered by Signal Generator host board.
OH-01 Torchmate I/O Adapter Kit
p/n? Torchmate Encoder Kit
U.S. Digital 500 CPR S/E Encoder
Mating Connectors - Rear Panel I/O:
Molex-Waldom Mini-Fit Jr. Series
INPUTS (16-pin): p/n 39-01-2160
OUTPUTS (10-pin) p/n 39-01-2100
plus both fit female pins p/n 39-00-0039
or 39-00-0047 for 22 AWG or thinner wires
ANALOG & ENCODER: any standard 8/8
RJ-45 plug as for 10/100-Base-T Ethernet
