Modbus RS485 Stepper Drive User Manual
3.2.1 Power Supply Cable & Motor Cable
Wire diameter: +VDC, GND, A+, A-, B+, B- terminal wire diameter≥0.3mm
2
(AWG15-22)
A noise filter which can improve anti-interference performance is recommended to be connected between power
supply and drive.
3.2.2 I/O Signal Cable
Wire diameter: I1 - I7, O1 - O3, COM wires diameter≥0.12mm
2
(AWG24-26)
Recommend to adopt shielded twisted pair cable with a length of less than 3 meters (the shorter the better).
Wiring: As far as possible away from the power line wiring, in order to prevent interference
Please connect surge absorber to inductive device, such as anti-parallel diode for DC coil, parallel RC-snubbers
circuit for AC coil.
3.2.3 RS485 Communication Cable
It is recommended to use shielded Ethernet network cables that do not exceed 100 meters.
3.3 Interface Specifications
3.3.1 Connectors Definition
Figure 3.2: DMRS series connectors
Encoder input signals connector
Digital inputs and outputs connector
RS485 communication connector
Salve ID: SW1-SW5
Baud Rate: SW6-SW7
Terminal Resistance: SW8