mycnc:mycnc_et7
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mycnc:mycnc_et7 [2019/04/29 11:11] – ivan | mycnc:mycnc_et7 [2019/06/27 13:55] – ivan | ||
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ET7 pulse dir outputs conform to the RS422 standard and are compatible with most of servo and stepper drivers (line driver with paraphase signals of positive and negative polarity). Internal schematic for pulse-dir is shown on a picture below. | ET7 pulse dir outputs conform to the RS422 standard and are compatible with most of servo and stepper drivers (line driver with paraphase signals of positive and negative polarity). Internal schematic for pulse-dir is shown on a picture below. | ||
- | Pulse-dir schematic | + | The pulse/dir schematic |
{{hardware: | {{hardware: | ||
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{{: | {{: | ||
+ | |||
+ | < | ||
+ | Please consult the above schematics for the ADC0/ADC1 input locations.</ | ||
==== Jumpers J1, J2, J3 and J4 ==== | ==== Jumpers J1, J2, J3 and J4 ==== | ||
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Each jumper corresponds to its respective IN group number (for example, J4 for Group 4). In this way, in a configuration without an external power supply, the correct jumper for the group can be closed to supply power from the internal +24V. The switch should also short the wire to GNC (0V) in order for the circuit to be closed. | Each jumper corresponds to its respective IN group number (for example, J4 for Group 4). In this way, in a configuration without an external power supply, the correct jumper for the group can be closed to supply power from the internal +24V. The switch should also short the wire to GNC (0V) in order for the circuit to be closed. | ||
- | < | + | < |
==== RS422/RS485 Bus ==== | ==== RS422/RS485 Bus ==== | ||
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==== Connection Examples ==== | ==== Connection Examples ==== | ||
- | === 3-wire NPN sensor connection example === | + | === 3-wire NPN sensor connection example |
- | < | + | < |
- | {{:hardware: | + | {{:mycnc:et7-npn-external-001-v2.png}} |
+ | === 3-wire PNP sensor connection example (external power supply) === | ||
- | === 3-wire PNP sensor | + | < |
+ | {{: | ||
+ | {{hardware: | ||
- | < | + | === 3-wire NPN sensor connection example (internal power supply)=== |
- | {{: | + | < |
+ | One of jumpers J1,J2,J3,J4 (J4 in case of this example) is closed.</ | ||
- | {{hardware:et7-b-connection-inputs-004.png}} | + | {{:mycnc:et7-npn-internal-001-v2.png}} |
+ | |||
+ | === 3-wire PNP sensor | ||
+ | |||
+ | < | ||
+ | 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. | ||
- | === 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 (J4, J5) 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/mycnc_et7.txt · Last modified: 2024/02/28 15:29 by ivan