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--- mycnc:mycnc_et10 [2019/04/29 10:54] – ivan
+++ mycnc:mycnc_et10 [2019/06/10 11:29] – ivan
@@ Line 4: / Line 4: @@
 VDC is used to supply myCNC-ET10 control board.
 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 in a picture below.
+The 24V DC Power Supply and +24V and GND pins are shown in the picture below.
 {{hardware:et10:et10-connection-power-001.jpg}}
@@ Line 11: / Line 11: @@
 ==== Pulse-Dir outputs ====
-ET10 has 6 channel pulse/dir outputs, 3MHz max pulses frequency.
+ET10 has 6 channel pulse/dir outputs, with the maximum pulse frequency of 3MHz.
-ET10 pulse dir outputs conform RS422 standard and compatible with most of servo and stepper drivers (line driver with paraphase signals positive and negative polarity). Internal schematic for pulse-dir is shown in a picture below.
+ET10 pulse/dir outputs conform to the RS422 standard and are compatible with most of servo and stepper drivers (line driver with paraphase signals positive and negative polarity). Internal schematic for pulse-dir is shown in the picture below:
-Pulse-dir schematic
 {{hardware:pulse-dir6.jpg?800}}
@@ Line 33: / Line 32: @@
 <code></code>
-An internal schematic is shown in the picture below. Darlington transistors array chips ULN2003 are used to buffer binary outputs in ET10. Each chip contains 7 transistors and handles up to 7 binary outputs. We recommend to not exceed 0.25A output current for each output pin (however ULN2003 maximum current is 0.5A according to datasheet).
+An internal schematic is shown in the picture below. Darlington transistor array chips ULN2003 are used to buffer binary outputs in ET10. Each chip contains 7 transistors and handles up to 7 binary outputs. We recommend not to exceed 0.25A output current for each output pin (however ULN2003 maximum current is 0.5A according to the datasheet).
 {{hardware:et10:et10-outputs.png}}
-ET10 pinout for outputs is shown below
+ET10 pinout for the outputs is shown below:
 {{hardware:et10:et10-connection-outputs-001.jpg}}
-There are LED indicators for each Output and PWM pin on the ET10 board to control actual Output/PWM state. LEDs are highlighted in a picture below.
+There are LED indicators for each Output and PWM pin on the ET10 board to control actual Output/PWM state. LEDs are highlighted in the picture below.
 {{hardware:et10:et10-outputs-leds-001.jpg}}
@@ Line 49: / Line 48: @@
 The ET10 control board has 48 galvanic isolated binary inputs, 12 groups of 4 inputs each. Each group has a common LED wire and separate power supply pins so inputs can be powered from different power sources. Using PNP and NPN sensors simultaneously is possible too.
-Schematic of the 4 inputs group is shown in a picture below.
+Schematic of the 4 inputs group is shown in the picture below.
 {{hardware:et10:et10-inputs.png?500}}
-Wires VCCB(common wire) and VCCA are used for external power supply connection. Beside external power supply, internal +24V DC can be used to supply input LEDs, if the correspondent jumpers are closed. <code>WARNING: If an external Power supply is used, correspondence jumpers for the group should be OPEN</code>
+Wires VCCB (common wire) and VCCA are used for external power supply connection. Beside external power supply, internal +24V DC can be used to supply input LEDs, if the correspondent jumpers are closed. <code>WARNING: If an external Power supply is used, correspondence jumpers for the group should be OPEN</code>
 Jumpers to use the internal power supply for each 4-inputs group are shown in the picture below
@@ Line 64: / Line 63: @@
 === 3-wire NPN sensor connection example ===
-<code>Jumpers are open.</code>
+<code>External power supply. Jumpers are open.</code>
 {{:hardware:et10:et10-connection-inputs-002-key-05-npn-v3.jpg}}
@@ Line 71: / Line 70: @@
 === 3-wire PNP sensor connection example ===
-<code>Jumpers are open.</code>
+<code>External power supply. Jumpers are open.</code>
 {{:hardware:et10:et10-connection-inputs-002-key-06-pnp-v3.jpg}}
+=== 3-wire NPN sensor connection example (internal power supply)===
+<code>Internal power supply. Jumpers are open.</code>
+{{:mycnc:et10-connection-npn-internal-no-jumper.png}}
+=== 3-wire PNP sensor connection example (internal power supply)===
+<code>Internal power supply. Jumpers are CLOSED.</code>
+{{:mycnc:et10-connection-pnp-internal-with-jumpers.png}}
 === Switch connection example ===
@@ Line 109: / Line 120: @@
 ==== Spindle Speed control over DAC (0-10V) output ====
+The pinout for the spindle speed control over DAC is shown below:
 {{hardware:et10:et10-10v-spindle-speed-control-001.png}}
@@ Line 135: / Line 148: @@
 The picture below shows an example of a potentiometer connected to ADC2 input.
+{{:hardware:et10:et10-potentiometer-001.jpg}}