Robot electrical interface

1 Base electrical interface

1.1 Introduction to the base

A. The interface, display and buttons on the top of the base are shown in Figure 2-3:


Figure 2-3 Front view of the base

B. The interface on the left side of the base is shown in Figure 2-4:


Figure 2-4 Left side view of the base

C. The interface on the right side of the base is shown in Figure 2-5:


Figure 2-5 Right side of the base

1.2 Base interface description

serial number interface name definition Features Remark
1 Type C Communication Interface Communicate with PC development use
2 MircoHDMI HDMI1 Use when connecting a display
4 Speaker, headphone jack Speaker, headphone jack
5 Type C Communication Interface Communicate with PC development use
6 switch switch Control input power on and off With lights (lights on)
7 DC / IO interface GND GND
I N6 digital input signal1 to 6 Input only N PN mode
2 4V D C24V
8 Emergency stop interface S TOP Emergency stop circuit interface
9 indicator light Main control power indicator Feedback master power-on status
10 SD card slot SD card slot Use when replacing SD card
11 USB2.0 USB2.0*2 Can be connected to external devices or U disk shion
12 USB3.0 USB3.0*2 External device or U disk
13 network port Ethereum Ethernet port communication
1 4 DC / IO interface 2 4V D C24V
OUT1 digital output signal1 to 6 P NP mode only
15 Power DC input interface DC24V power input
  1. Type C interface: can be used to connect and communicate with the PC , developers can use

  2. MircoHDMI interface: This interface is an HDMI D-type interface, which is connected to the monitor. HDMI interface 2 has priority, and HDMI interface 1 is recommended.

  3. Power switch: control the on-off of the main power input, when it is turned off, the controller is also powered off.

  4. Digital input/digital output:

Including 6 digital input signals and 6 digital output signals, used to interact with other devices, together with other devices constitute an important part of the automation system.

It should be noted that the output signal is in the form of PNP, and the input signal is in the form of NP N. The following is a schematic diagram of the external wiring:

p2 img

  1. 24V output: Internal DC24V, available for users.

  2. Emergency stop circuit terminal: connected to the emergency stop button box, which can be used to control the emergency stop of the robot.

Note: The emergency stop switch must be connected when the robot is in use, and ensure that the emergency stop switch circuit is connected.

  1. Power DC input interface:

Use the KPPX-4P R7BFDC power socket; the 24V 10A DC power adapter provided by the manufacturer can be used to power the myCobot320.

  1. USB interface: an interface for data connection with serial bus standards 2.0 and 3.0; users can use the USB interface to copy program files, or use the USB interface to connect peripherals such as mouse and keyboard.

  2. Network port: the port for network data connection, the user can use the Ethernet interface for communication and interaction between the PC and the robot system, and also for Ethernet communication with other devices.

2 Electrical interface at the end of the robotic arm

2.1 Introduction of Robot Arm End

D. The schematic diagram of the end interface of the robot arm is shown in Figure 2-12 and Figure 2-13:


Figure 2-12 Side view of the end of the robotic arm


Figure 2-13 Side view of the end of the robotic arm

2.2 Terminal interface description

serial number interface name definition Features Remark
16 M8 aviation socket End tool IO interface Interact with external devices
17 Atom Led + button Status view/drag to teach
18 Type C Communication Interface Communicate with PC Update Atom firmware using
19 Grove developers use
  1. End tool IO interface:

As shown is the tool I/O diagram, my Cobot 320 robot provides one input and two outputs .


The definition of each tool I/O port is shown in the table below. Note that both the input and output of the tool I/O are PNP type, and the wiring method is the same as the bottom output interface.

serial number Signal explain Matching M8 line color
1 GND DC24V negative pole White
2 OUT1 Tool output interface 1 brown
3 OUT2 Tool output interface 2 green
4 485A reserved, undeveloped yellow
5 24V DC24V positive Ash
6 IN1 Tool input interface 1 pink
7 IN2 unavailable blue
8 485B reserved, undeveloped purple
  1. Atom: used for 5X5 RGB LED to display the state of the robot arm and key function (used when the robot enters the drag teaching)

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