3.4      (Optional) Installing Air Pump

It is necessary to install the matching air pump when using the gripper or suction cup for grabbing objects. The air pump is controlled over the I/O interface. For details, please see 6.7 Operating I/O Assistant. The Air pump that we provided is used for debugging I/O interface. In real applications, please select a professional one.

Figure 3.9 shows the air pump. Table 3.1 lists the description of the cables that are shown in the yellow box of this figure.

Figure 3.9  Air pump


The appearance of the air pump depends on the production batch of Dobot M1. However, the connection method remains unchanged.


Table 3.1  Cable Description








OUT1: Control the intake and outtake of the air pump


OUT2: Control the status of the air pump


If the air pump is connected to the base I/O interface. The yellow cable and the blue one are connected to the output pins (The corresponding outputs listed in Base I/O Interface are DOUT17 and DOUT18) of the base I/O interface. The red one and the black one are connected to the VCC_24V pin on the base I/O interface and the PGND pin on the CAN bus interface respectively, as shown in Figure 3.10, and you need to tighten them with a straight screwdriver. The description in this topic is for reference only. Please choose the appropriate interface to connect the air pump. For details, please see 4.3 Interface Description.


Figure 3.10  Air pump connection



When air pump is connected to I/O interface, the terminals of air pump cannot be exposed to the air, to avoid short circuit. For matching all I/O interfaces, terminals of air pump will be slightly longer. If that happens, you need to cut them to an appropriate length. Figure 3.11 and Figure 3.12 show the standard and non-standard connection of the terminals respectively.


Figure 3.11  Standard connection


Figure 3.12  Non-standard connection


 Issue V1.2.1 (2019-04-10)User GuideCopyright © Yuejiang Technology Co., Ltd