PRODUCT DISCONTINUED: November 2014.
RECOMMENDED SUBSTITUTION: For existing customer transfer, and for new customers or new applications, refer to the BREAKUOT BOARD IO3-R2
Breakout board IO3 has digital buffer for STEP/DIR/ENA command signals and as such it is particularly suitable for the connection up to 4 microstep drives MST-107 and/or to connect DC servo drives DCS-3010 directly to PC. This breakout board can also be used with all drives that have opto-isolated STEP/DIR/ENA inputs.
On board charge pump prevents undesirable state changes in case of loss of communication with computer.
Breakout board IO3 has two relay outputs that can be used to activate the two customers (electric motor for the main spindle and/or electric motor for vacuuming chips, etc.). Indication of the relay is performed using the two LEDs which are located on the board.
One of the relay outputs can optionally be converted to analog output with a range of 0–5 V or 0–10 V which allows software to control of spindle motor revolution speed.
Up to 5 limit switches can be connect to the brakout board.
PC connection is performed via the parallel (printer, LPT) port. Breakout board has centronics (IEEE1284) connector, so that connection to the PC uses a standard printer cable.
Breakout board IO3 is specially developed to be used with software for generating STEP/DIR command signals via parallel port such as: Mach2, Mach3, TurboCNC (free), KCam, etc.
For power supply of the card uses the source 15–24 V DC / 500 mA. The breakout board has the voltage regulator for the proper operation.
Photo gallery
http://www.audiohms.com/en/component/k2/item/85?Itemid=226#sigProId1cd8fd3a67
DESCRIPTION OF INPUT–OUTPUT PINS
| Description – function | Pin number on the side of PC (connector DB25) |
Line type on the side of PC |
Annotation |
| X axis STEP | 2 | Output | - |
| X axis DIR | 3 | Output | - |
| Y axis STEP | 4 | Output | - |
| Y axis DIR | 5 | Output | - |
| Z axis STEP | 6 | Output | - |
| Z axis DIR | 7 | Output | - |
| A axis STEP | 8 | Output | - |
| A axis DIR | 9 | Output | - |
| ENA (enable) | 17 | Output | - |
| Safety signal (charge pump) | 14 | Output | OutputCan be optionally switched on and off |
| Spindle - Rele 1 | 1 | Output | Optionally analog output of 0–5 V or of 0–10 V |
| Coolant - Rele 2 | 16 | Output | - |
| Limit switch 1 (SW1) | 10 | Input | - |
| Limit switch 2 (SW2) | 11 | Input | - |
| Limit switch 3 (SW3) | 12 | Input | - |
| Limit switch 4 (SW4) | 13 | Input | - |
| E-Stop - Limit switch 5 (SW5) | 15 | Input | - |
SPECIFICATIONS
| Characteristics | Description - Value |
| Number of axis | 4 (X, Y, Z and A-axis) |
| Axes control | By STEP/DIR command lines separately for each axis, common ENA (enable) line for all axis |
| Output current of STEP/DIR command lines | 15mA max |
| Number of limit switches | 5 |
| Number of relay switches | 2 |
| Analog output | Choice 0–5 V DC or 0–10 V DC via jumper |
| The capacity of one relay output | 250VAC/8A max |
| Supply voltage | 15-24VDC/500mA |
| Dimensions (W x L x H) | 173mm x 63mm x 20mm |
| Weight | ~120g |
NOTE: specifications are subject to change without notice
