Geo Brick Circuit Board V1.
Geo Brick Circuit Board V1.6 Table of Contents Section 1: Introduction........................................................................................................................................3 1.1 About 3 1.2 Diagram 3 Section 2: Voltage Inputs (X1 Connector)...........................................................................................................4 Section 3: E-Stop Chain (and Ethernet Ports)................................................................................
Geo Brick Circuit Board V1.6 Section 1: Introduction 1.1 About The Geo Brick Interface Printed Circuit Board (PCB) was designed to ease the wiring and troubleshooting of a wide variety of CNC machines. The Geo Brick Interface PCB is designed to connect to a 4 or 8-axis Delta Tau Geo Brick. For most applications, machine wiring can be terminated to the interface board without any need for breakout boards or messy terminal block wiring. 1.
Geo Brick Circuit Board V1.6 Section 2: Voltage Inputs (X1 Connector) All power to the Geo Brick Interface PCB is brought in through a 5-pin Phoenix-style header in the upper right corner of the board. The board itself is labeled with a short description of each pin. From right to left: 1. GND 2. 24 V No E-stop 3. COM 4. 24 V In 5. E-Stop Satisfied This pin should be tied to Earth Ground This pin sources 24 VDC when the machine is completely out of E-Stop.
Geo Brick Circuit Board V1.6 Section 3: E-Stop Chain (and Ethernet Ports) The Geo Brick interface circuit board also makes wiring up a series E-Stop chain easy to do. All of the machine’s E-Stops are normally closed contacts in series, meaning that any one E-Stop can break the circuit. You can connect E-Stops in one of two ways.
Geo Brick Circuit Board V1.6 Section 4: Limits The limits for a standard gantry are broken out through the Phoenix headers at the top of the board. Each limit switch plug has 2 pins per switch and is intended to be used with a normally closed contact type of switch. One of the two pins (labeled with a tiny “+”) sources 24 V out to the switch. Unless the switch is depressed, 24 V should return to the other pin. When the limit switch is depressed, no voltage should be present at the other pin.
Geo Brick Circuit Board V1.6 Section 5: Pump Control A dedicated connector for digital outputs that are usually allocated for remote operation of the intensifier pump is available. The header is located to the right of the limit switch headers and is labeled “REMOTE_PUMP”. From right to left the pins are: Name 24 V NO ESTOP COM ON LP Description 24 V signal for isolated relay.
Geo Brick Circuit Board V1.6 Section 6: Head Outputs Many of the I/O signals are terminated into the DSUB connectors labeled “HEAD_1” and “HEAD_2” for ease of wiring. If wires are going to be distributed out using a WJ-1520 Z-Carriage circuit board, a WJ-1511 (Z-Carriage to Breakout Board) cable assembly will connect the two. Otherwise, a WR-1008 (Z-carriage to pigtails cable) can be used to distribute these signals to terminal blocks.
Geo Brick Circuit Board V1.6 Section 7: Ribbon Cables The main interface to the Geo Brick is via the 3 large DSUBs labeled “MOTORS_1-4”, “MOTORS_5-8”, and “I/O”. NAME MOTORS_1-4 MOTORS_5-8 I/O DESCRIPTION Breaks out all limit switch wires for the first 4 motors (X, XX, Y, Z1) Breaks out all limit switch wires for the second 4 motors (if applicable) (A, B/C, Z2) Breaks out all digital I/O (16 inputs, 8 outputs, all 24 V PNP levels) Do not cross the two cables dedicated to the limit switches.
Geo Brick Circuit Board V1.6 Section 8: Comp Header The 4-pin connector at the bottom-right of the board can be used for laser compensation of a machine. A fast output tied to the LP output causes a contact closure between Pins 1 and 3 of connector X3. When electronic compensation has been completed, the output is no longer used during normal operation.
Geo Brick Circuit Board V1.6 Section 9: Work Lights 6 white LEDs are across the bottom of the circuit board. The LEDs can be turned on or off with the switch in the bottom right corner of the board (A-JP1). These lights are intended to provide light for servicing the circuit board in dark areas. During normal operation, the lights should be switched off.
Geo Brick Circuit Board V1.
Geo Brick Circuit Board V1.
