We design and manufacture high-quality and cost effective drivers and controllers for DC brush, BLDC and stepper motors

Catalog products

  • Brush DC motor controllers


product card


Main parameters

Voltage 12 – 24 VDC
Rated current up to 40 A
Peak current 100 A
Control methods RS-485Modbus (speed or position)
Pre-programmed motion
Size 116x100x23 mm

BMSD‑40Modbus is a programmable controller for DC brush motors. The unit can be controlled via RS-485 Modbus ASCII or RTU. It provides speed and position control (for motors with encoder). There are programmable digital inputs. Current limitation finction.

technical data

Technical data

Parameters of external signals IN1 and IN2:  
Max. resistance of closed contacts 4.7 kOhm
Max. input current 0.5 mA
Max. voltage 0.98 x Usup V
Min. non-zero 0.01 x Usup V