mycnc:mycnc_et7
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mycnc:mycnc_et7 [2019/06/10 12:34] – ivan | mycnc:mycnc_et7 [2023/12/29 11:33] – ivan | ||
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===== myCNC-ET7 CNC controller ===== | ===== myCNC-ET7 CNC controller ===== | ||
+ | |||
+ | //**NOTE**: The myCNC-ET9 controller (also labeled ET7R4, ET7R5 and ET7R6) is the updated version of the myCNC-ET7 board with some additional functionality. For information specific to the ET9 revisions, please consult the following manual: [[mycnc: | ||
+ | |||
+ | ^^myCNC-ET7 controller specifications^^ | ||
+ | | Number of motor outputs | 6 | | ||
+ | | Motor driver outputs | pulse-dir, differential high-speed line driver outputs compatible with RS422 (TIA/ | ||
+ | | Maximum pulse frequency | 3 MHz | | ||
+ | | Binary inputs | 16x galvanic isolation, PNP/NPN sensor compatible | | ||
+ | | Encoder inputs | 3x incremental encoder inputs, | ||
+ | | Binary outputs | 5x - pluggable relays 10A, NO/NC contacts; 11x - open collector, 24V, 0.25A | | ||
+ | | PWM outputs | 3x - open collector, 24V, 0.25A | | ||
+ | | ADC inputs | 2x - 0...10V range, differential inputs, fully galvanic isolated (for plasma arc voltage measure, THC control), 6x - 0...3V range | | ||
+ | | DAC output | 1x - 0...10V (for spindle speed control and relative applications)| | ||
+ | | RS485/RS422 | 1x RS422 full duplex serial communication OR 2x RS485 half-duplex serial communication | | ||
+ | | External operator panel connector | up to 25 external keys, up to 2 rotary encodersup to 2 double-axes joysticks OR up to 4 potentiometers (shared with 4x ADC inputs) | | ||
+ | | Power supply outputs for control computer | 2x DC-DC converters 5V 1.5A | | ||
+ | |||
+ | The ET7 board is often recommended for plasma and laser cutting applications. | ||
==== ET7 top view ==== | ==== ET7 top view ==== | ||
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==== Power supply connection ==== | ==== Power supply connection ==== | ||
- | myCNC-ET7 control board uses 24VDC . | + | myCNC-ET7 control board uses 24VDC. |
- | The board contains 4 pins for connection +24V (joined internally) and a number of GND pins for convenient connection of external devices. | + | The board contains 4 pins for connection +24V (joined internally) and a number of GND pins for convenient connection of external devices. |
- | Power Supply 24V DC and +24V and GND pins are shown on a picture below. | + | |
+ | {{: | ||
+ | |||
+ | A separate 4-pin connector is also available on the board (shown below). This one houses two independent power converters (5V/5V for all new ET7 boards, | ||
+ | |||
+ | {{: | ||
+ | |||
+ | For example, this 4-pin power supply connection is often used to power single board computers: | ||
- | {{hardware:et7: | + | {{:hardware:0pc-et7r2-004.jpg}} |
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{{hardware: | {{hardware: | ||
- | Encoder inputs connector pinout is shown on a picture | + | Encoder inputs connector pinout is shown in the diagram below: |
- | {{hardware:et7: | + | {{:mycnc: |
+ | |||
+ | //NOTE: Depending on the board revision version, the +5/+5V power supply in the top left corner may actually be | ||
+ | a +5/+12V power supply (on older boards).// | ||
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myCNC-ET7 controller has 8 ADC inputs. | myCNC-ET7 controller has 8 ADC inputs. | ||
* 6 ADC inputs 0-5V range | * 6 ADC inputs 0-5V range | ||
- | * 2 ADC inputs with galvanic isolation for save and convenient connection of Arc Voltage signal from Power station. Galvanic isolated ADC inputs are 0..10V, so High Voltage Arc signal **CANNOT** be connected directly to ADC inputs, **voltage divider is NEEDED**. | + | * 2 ADC inputs with galvanic isolation for save and convenient connection of Arc Voltage signal from Power station. Galvanic isolated ADC input ADC0 has the 0...5V (low-voltage) range, while ADC1 is 0..12V, so High Voltage Arc signal **CANNOT** be connected directly to ADC inputs, **voltage divider is NEEDED**. |
The 0-5 V ADC inputs schematic is shown below: | The 0-5 V ADC inputs schematic is shown below: | ||
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{{: | {{: | ||
- | Non-isolated ADC inputs have a 0...5V Range. Connector with non-isolated ADC inputs also has the GND and +5V DC output pins for convenient potentiometer connection. Picture below shows an example for potentiometer connected to ADC2 input. | + | Non-isolated ADC inputs |
{{: | {{: | ||
- | < | + | < |
+ | The silk printing naming for inputs ADC0 and ADC01 are switched. | ||
Please consult the above schematics for the ADC0/ADC1 input locations.</ | Please consult the above schematics for the ADC0/ADC1 input locations.</ | ||
+ | |||
+ | A voltage divider can be used for plasma cutting arc. For the 12V ADC ports (ADC1) and voltage in the range of 0-300V, a voltage divider with a 1:25 ratio may be used (a 1:20 ratio can be used for voltages up to 240V). | ||
+ | |||
+ | For example, using the standard // | ||
+ | |||
+ | {{: | ||
+ | |||
+ | Similarly, for ADC0 (with a range of 0-5V), a voltage divider with a 1:50 ratio is required (for voltages up to 300V). On older (prior to 2020) models of the myCNC-ET7 controller, the range on the ADC0 inputs was similarly 0-12V, however in the interest of user convenience the two ADC ports can now be used for a variety of power sources and voltage dividers. | ||
+ | |||
+ | {{: | ||
==== Jumpers J1, J2, J3 and J4 ==== | ==== Jumpers J1, J2, J3 and J4 ==== | ||
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{{hardware: | {{hardware: | ||
- | RS422 connector pinout shown below | + | RS422 connector pinout shown below. **NOTE**: While all of the RX/TX ports (RX A, RX B, TX A, TX B) are used for the RS422 connection (such as a Hypertherm machine), only RX A and RX B are utilized in an RS485 configuration. |
- | {{:hardware: | + | |
+ | {{:mycnc: | ||
==== DAC output ==== | ==== DAC output ==== | ||
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==== Connection Examples ==== | ==== Connection Examples ==== | ||
- | === 3-wire NPN sensor connection example === | ||
- | < | + | ===Stepper driver connection (4 axes)=== |
- | {{: | + | |
- | === 3-wire | + | {{: |
+ | |||
+ | === 3-wire | ||
< | < | ||
+ | {{: | ||
+ | === 3-wire PNP sensor connection example (external power supply) === | ||
- | {{:hardware: | + | < |
+ | {{:mycnc:et7-pnp-external-001-v2.png}} | ||
{{hardware: | {{hardware: | ||
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One of jumpers J1,J2,J3,J4 (J4 in case of this example) is closed.</ | One of jumpers J1,J2,J3,J4 (J4 in case of this example) is closed.</ | ||
- | {{: | + | {{: |
=== 3-wire PNP sensor connection example (internal power supply)=== | === 3-wire PNP sensor connection example (internal power supply)=== | ||
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All of jumpers J1,J2,J3,J4 are open.</ | All of jumpers J1,J2,J3,J4 are open.</ | ||
- | {{: | + | {{: |
As the sensor requires a 24V power supply, it is necessary to connect it to the 24V port, not the 5V. | As the sensor requires a 24V power supply, it is necessary to connect it to the 24V port, not the 5V. | ||
- | === Switch connection example === | + | === Switch connection example |
< | < | ||
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Switch should also short the wire to GNC(0V). | Switch should also short the wire to GNC(0V). | ||
- | {{:hardware: | + | {{:mycnc:et7-switch-internal-001-v2.png}} |
+ | |||
+ | ===Switch connection example (external power supply)=== | ||
+ | |||
+ | {{:mycnc: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | < | ||
=== Spindle Speed control over DAC (0-10V) output === | === Spindle Speed control over DAC (0-10V) output === | ||
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{{hardware: | {{hardware: | ||
+ | |||
+ | ==== ET7 firmware reflash ==== | ||
+ | |||
+ | // | ||
+ | |||
+ | :!: //**NOTE:** Make sure to select the firmware for the correct version/ | ||
+ | |||
+ | Flashing incorrect version of the firmware will result in a non-functional board. If you're unsure of your board version, please contact myCNC Technical Support prior to the reflash:// | ||
+ | |||
+ | {{: | ||
+ | |||
+ | ---- | ||
+ | |||
+ | myCNC-ET7 reflashing procedure may take up to 3 minutes. | ||
+ | |||
+ | To reflash the board: | ||
+ | |||
+ | 1. Plug in the 24V DC power supply | ||
+ | |||
+ | 2. Plug in the micro-USB cable into the ET7 controller & a Host Computer with myCNC installed | ||
+ | |||
+ | 3. Close jumpers J5(reset) & J6(programming) on the controller board | ||
+ | |||
+ | 4. Open (remove) the J5 jumper. | ||
+ | |||
+ | {{: | ||
+ | |||
+ | 5. Open myCNC software on Host computer (Settings > Support Tab) | ||
+ | |||
+ | 6. " | ||
+ | |||
+ | 7. Select " | ||
+ | |||
+ | 8. "UART port" - select the port with FT232 attached. If no such port visible, check the micro-USB connection, then close and open the Support tab once again in order to refresh it. | ||
+ | |||
+ | 9. Baud Rate set to " | ||
+ | |||
+ | 10. Press " | ||
+ | |||
+ | 11. If " | ||
+ | |||
+ | 12. Remove all jumpers (J5, J6) and restart the board. | ||
+ | | ||
+ | {{: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | If the reflashing process failed, please check your internet connection and the micro-USB connection, and then repeat the reflashing procedure from Step 3. | ||
+ | |||
+ | |||
+ | ======myCNC-ET9 (ET7-R4 and above)====== | ||
+ | |||
+ | The myCNC-ET7R4 (also called the myCNC-ET9) controller is the updated version of the myCNC-ET7 board with some additional functionality. For information on the ET7, please consult the following manual: [[mycnc: | ||
+ | |||
+ | The board naming is different due to a different chip, which requires a separate version of the firmware from the regular ET7 boards (such as ET7R3). | ||
+ | |||
+ | //NOTE: The ET7R5 (Revision 5) and the ET7R6 (Revision 6) controllers use the same ET9 firmware as ET7R4. The functionality between R4 and R5/R6 versions of the board remains the same. // | ||
+ | |||
+ | ---- | ||
+ | |||
+ | The ET7R4 controller is pictured below: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | The myCNC-ET9 pictured with a DC motor driver: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | myCNC-ET9 main features in addition to the fucnctionality present on the previous iterations of the board: | ||
+ | |||
+ | * Motor driver can be plugged into an auxiliary connector (outputs #17/#18) | ||
+ | * 2 PWM ports duplicated (PWM1, PWM2) | ||
+ | * Since the driver board is designed for 2 motors, therefore the ET9 has support for both | ||
+ | |||
+ | |||
+ | ==== Reflashing the ET9 board ==== | ||
+ | |||
+ | Reflashing the ET9 board | ||
+ | |||
+ | To reflash the ET9 board, follow the instructions on reflashing the ET7 boards here, however make sure to select the **ET7-R4/ | ||
+ | |||
+ | {{: | ||
+ | |||
+ | Failure to select the correct revision version of the board will result in your board being non-operational. Please consult the myCNC support team prior to a reflash should you have any questions. | ||
mycnc/mycnc_et7.txt · Last modified: 2024/02/28 15:29 by ivan