BMD-20DIN
DC brush motor controller
User manual
Tallinn Science Park Tehnopol, Akadeemia tee 21/6,
Tallinn 12618, Estonia
Phone: + 372 6559914,
e-mail: sale@smd.ee
url: http://smd.ee
1. Product designation
Controller BMD-20DIN is an electronic device to operate and control DC brush motors with maximum
voltage 24VDC and power under 480W. The controller is designed to control speed, direction, smooth start
and stop of brush motors. BMD-20DIN provides the function of precise adjustable motor overcurrent
protection.
2. Technical characteristics
Power supply: 12…24VDC, stabilized;
Max. operation motor current: 20A;
Maximum voltage across a motor: 0.99∙U
sup
;
Minimum non-zero voltage across a motor: 0.01∙U
sup
;
Overcurrent protection:
· hardware short-circuit protection - 30A, 15 µs;
· motor phase current limit – set by customer, limitation range 0.1 – 20 A, actuation time – 5 sec. Refer to
the section 5 for instruction on motor overcurrent protection setting.
Protection of an actuating mechanism:
· emergency stop (HARD_STOP) - the motor stops immediately in case the protection circuit is broken.
Thermal protection:
· output stage temperature rise;
· brake circuit temperature rise.
Speed regulation:
· analog voltage signal: 0…5 VDC;
· external potentiometer 2.2 kOhm;
· built-in potentiometer.
Input signals “DIRECTION” and “START/STOP” parameters:
· type - clean contact;
· max. current: 0.5 mА.
Environmental conditions:
· Ambient environment: non- corrosive, non-explosive,
· Humidity: 90% RH or less upon condition +25°C
· Condensation and freezing: none
· Pressure: 650…800 mm of mercury.
· Ambient Temperature: 0…+50°C
Fig.1 Dimensions of BMD-20DIN
To Next Page
Loading...