mycnc:mycnc_et7
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mycnc:mycnc_et7 [2019/06/10 12:34] – ivan | mycnc:mycnc_et7 [2020/04/27 12:00] – ivan | ||
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===== myCNC-ET7 CNC controller ===== | ===== myCNC-ET7 CNC controller ===== | ||
+ | |||
+ | ^^myCNC-ET7 controller specifications^^ | ||
+ | | Number of motor outputs | 6 | | ||
+ | | Motor driver outputs | pulse-dir, differential line driver outputs compatible with EIA RS-422 Standard | | ||
+ | | 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 | | ||
==== ET7 top view ==== | ==== ET7 top view ==== | ||
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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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+ | ==== ET7 firmware 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. |