Differences

This shows you the differences between two versions of the page.

--- mycnc:mycnc_et7 [2019/06/14 12:57] – ivan
+++ mycnc:mycnc_et7 [2020/04/27 12:00] – ivan
@@ Line 1: / Line 1: @@
 ===== 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,differential line driver (EIA RS422 compatible), hardware decoded, 5MHz max frequency |
+| 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 ====
@@ Line 148: / Line 163: @@
 {{hardware:et7:et7-rs485.png}}
-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:et7:et7-b-rs422-connection-001.jpg}}
+{{:mycnc:et7-b-rs422-connection-002-rs485-connections.jpg}}
 ==== DAC output ====
@@ Line 161: / Line 178: @@
 ==== Connection Examples ====
+===Stepper driver connection (4 axes)===
+{{:mycnc:et7-stepper-driver-001.jpg}}
 === 3-wire NPN sensor connection example (external power supply)===
@@ Line 277: / Line 299: @@
+==== ET7 firmware reflash ====
+myCNC-ET7 reflashing procedure may take up to 3 minutes.
+To reflash the board:
+. Plug in the 24V DC power supply
+. Plug in the micro-USB cable into the ET7 controller & a Host Computer with myCNC installed
+. Close jumpers J5(reset) & J6(programming) on the controller board
+. Open (remove) the J5 jumper.
+{{:mycnc:et7-reflash-001.png}}
+. Open myCNC software on Host computer (Settings > Support Tab)
+. "Select board" set to "myCNC-ET7"
+. Select "Firmware version" from "Release", "Night build" or "Testing" ("Release" is recommended)
+. "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.
+. Baud Rate set to "115200" for ET7; other baudrate can be selected in case of problems on the 115200 speed
+. Press "Update Firmware" button, Firmware download and reflashing process will be started
+. If "Sector 0; +" message is shown in the debug window, the reflashing process has been finished successfully.
+. Remove all jumpers (J5, J6) and restart the board.
+{{:mycnc:et7-reflash-002-support.png}}
+{{:mycnc:et7-reflash-004-success.png}}
+If the reflashing process failed, please check your internet connection and the micro-USB connection, and then repeat the reflashing procedure from Step 3.