digital electronic fan speed controller differential pressure/time
These automatic speed controllers are fully digital and control the rotational speed of single phase (230 Vac/50 Hz) voltage controllable motors according to differential pressure. DP2S controllers can be used to maintain a stable and constant differential pressure in a target area. These controllers provide a great number of user adjustable options. All data is visualized on a liquid crystal display (LCD), presented by user friendly and intuitive multilingual menus. The parameters can be set through a four button keypad (supplied with a lock function). There are user and installer priorities set by passwords.
DP2S controllers provide auto and manual operation modes, possibility for input adjusting, kickstart with programmable time duration, min and max speed limitations, digital readout, TK protection, internal real-time clock with two level switching (day/night, day/week programmable), outputs for valve (230 Vac), slave/power units (0-10V/ 0-20mA) and an RS485 interface.
Auto mode in function of differential pressure: speed rises when differential pressure drops
Manual mode speed rises/decreases on user demand at the next switching point set by the clock, automatic return to auto mode
Adjustable settings: min safety speed, min speed, max speed, 2 set points, proportional range, kickstart,
mode change, TK delayed detection, time to max speed
Input for remote remote on/off switching, max. ventilation
Motor protection by connecting thermal (overheating) contacts of the motor, option for delayed detection
Analog output selectable between proportional and digital (for alarm function on TK input)
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