|Number of controlled valves||1|
|Power supply||from DCL (24 - 36 V)|
|Current consumption from DCL, no more than||0,3 mА|
MDU-1 prot.R3 and MDU-1S prot.R3 power supply at:
24 VDC drive control
230 VAC drive control
и24±4V power supply source
mains 220V, 50 Hz
|Length of connecting lines to control buttons, at most||30 m|
|Overall dimensions of the module, no more than||108х170х42 mm|
|Weight, no more than||220 g|
|Operating temperature range||from -25 to +60°С|
|Average service life, at least||10 years|
By built-in relay, control module of smoke exhaust valve supplies voltage to the electromechanical actuator. Switching voltage is 24VDC or 230VAC. Switching voltage is selected by jumper Jp1 at module's board. Difference of MDU-1 prot.R3 with respect to MDU-1S prot.R3 is in relay capacity, which switches voltage to the actuator. Parameters may be found in the Table of technical characteristics. Other parameters and functions are similar.
MDU-1 prot.R3 is used to control actuators designed for 24 or 220V voltage. Valve gate position is controlled by limit switches either incorporated into electromechanical actuator or installed at the gate.Control module of smoke exhaust valve is used to:
The module has a possibility of valve gate transfer into the normal and safety (protective) position during system configuration with "OPEN" and "CLOSE" buttons installed on the board.
MDU-1 control module may be installed in DIN rail using special securing bar (not in the scope of supply; may be provided by separate order).