Dobot M1 - Page 38

Dobot M1 User Guide 4 Electrical Specifications
Issue V1.3.4 (2019-05-23) User Guide Copyright © Yuejiang Technology Co., Ltd
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PIN
Name
Function
Voltage/Current
90
EX_IN8（DIN8）
Digital input
0V,24V/<100mA
91
PGND
Negative of the logic power
GND/5A
92
PGND
Negative of the logic power
GND/5A
93
VCC_24V
Positive of the logic power
24V/3A
94
RS-485_A
RS485A bus, reserved
-
95
RS-485_B
RS485B bus, reserved
-
96
GND
Negative of the analog power
GND/1A
97
NC1
Relay K1 Normally Closed
AC: 250V/5A
DC: 30V/5A
98
NO1
Relay K1 Normally Open
AC: 250V/5A
DC: 30V/5A
99
COM1
Common terminal
AC: 250V/5A
DC: 30V/5A
100
GND_EMC
Earth ground
GND/5A
NOTICE
 DOUT9 and DOUT10 are used to control relay K1 and K2 respectively, which are
internal encapsulated interfaces. If you use a relay for power supply or other
applications, you can use the COM, NC, NO interfaces directly on the external
expansion board after connecting it to the Dobot M1. If you have to debug the relay
K1 and K2, you can debug OUT09 and OUT10 on the M1Studio > I/O Assistant
page. For details, please see 6.10.6 Example of Relay Connection.
 All input and output interfaces of the Dobot M1 only can be used for signal control
and cannot be regarded as a power supply. You can use relays on the external
expansion board for power supply. Take the relay K1 as an example, the circuit
diagram is shown in Figure 4.5.