Electrical Interface

1 Electrical Interface of the Base

1.1 Base

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

1.2 Base Interface

Number Interface Definition Function Remark
1 Switch switch Control input power on and off With lights (lights on)
2 Power DC Input Interface DC24V power input
3 DC/IO Interface 24V DC24V
OUT1 Digital output signal 1~6
4 DC/IO interface GND GND
IN1 Digital input signal 1~6 Input only in NPN mode
24V DC24V
5 Emergency Stop Interface STOP speaker, headphone jack Emergency stop circuit interface
6 HDMI interface HDMI Use when connecting a display
7 USB2.0 USB2.0*2 Can be connected to external devices or U disk shion
8 USB3.0 USB3.0*2 External device or U disk
9 network port Ethereum Ethernet port communication
  1. Type C interface is used to connect and communicate with the PC, available for developers.
  2. MircoHDMI interface is an HDMI D-type interface, which is connected to the monitor. HDMI interface 1 is recommended as HDMI interface 2 is prioritized.
  3. Power switch is used to control the main power input. If it is switched off, the controller is also powered off.
  4. Digital Input/Digital Output includes 6 digital input signals and 6 digital output signals. They are mainly used to interact with and constitute an important part of the automation system with other devices. It should be noted that the output signal is in the form of PNP. The following picture is a schematic diagram of the external wiring:

p2 img

  1. 24V output: Internal DC24V, available for users.
  2. Emergency stop circuit terminal is connected to the emergency stop button box, which can be used to control the emergency stop of the robot.

Notice: The emergency stop switch must be connected when the robot is in use, and make sure that the emergency stop switch circuit is always connected.

  1. Power DC input interface:

    It uses KPPX-4P R7BFDC power socket. The 24V10A DC power adapter provided by the manufacturer can also be used to power myCobot320.

  2. USB interface is an interface for data connection with serial 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.

  3. Network port is the port for network data connection. Users can use the Ethernet interface for communication and interaction between the PC and the robot system, and for Ethernet communication with other devices.

2 Electrical Interface at the End of the Robot Arm

2.1 End of the Robot Arm

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

Number Interface Definition Function Remark
10 M8 Aviation Socket End Tool IO interface Interact with external devices
11 Atom Led + button Status view/drag to teach
12 Type C Communication Interface Communicate with PC Update Atom firmware using
13 Grove developers use
  1. IO interface. As shown is the tool I/O diagram, myCobot 320 has one-way input and two-way output.


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

Number Signal Explanation Matchable Color of M8 Line
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 is used for 5X5 RGB LED to display the state of the robot arm and key function (used when the robot performs the drag teaching)

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