
3 - Manual - Digital speed control
Key SW1 :
Pressing SW1 key, motor starts running and speed 1 is automatically setted: at
every start, it is however foreseen that the motor runs, for 3 seconds, at a different
speed (start speed). After 20 seconds, gas solenoid valve is turned on and led DL
lights on.
Key SW2:
Pressing SW2 key, gas solenoid valve is immediately disabled and led DL switches off:
Maximum speed motor is setted (speed 8) for 20 seconds, then it stops.
Key SW3:
Each press of SW3 key increases speed motor according to the scheme:
V1 —> V2 —> ... —> V7 —>V8.
Key SW4:
Each press of SW4 decreases speed motor according to the scheme: V8 —> V7 —> ... —> V2 —>V1.
Key SW5:
With motor off or motor running, pressing SW5 turns on or off light.
3.2 Technical characteristics
3.4 Procedure for controlling the engine speed
Single-phase power supply: 85-265 Vac 50Hz.
Fuse of general protection: 10AT 5 X 20 mm.
Stand-by power consumption (loads off) 0.35 W.
Phase control with triac: speed motor setting and switch with relay.
Motor: single-phase induction.
Maximum load MOTOR: 4,5A (@ 230 Vac).
Maximum load LIGHTS: 2A (@ 230 Vac).
Features for gas solenoid valve : 230 Vac 50Hz MAX. 1A
Possibility of receiving wireless remote controls by Radio remote control (optional).
Possibility of connecting optional sensors (temperature sensors, air-quality sensors, odour and gas sensors, relative
humidity sensor, CO2 sensors, anemometers, etc..)
Bidirectional serial communication channel RS-485 (optional).
Digital controls setting through 5 frontal keys, 1 led and 1 seven-segments display.
IP protection : IP55.
Size: 158x118x77 mm.
Weight: 0.37 kg.
References standards: EN 55014-1, EN 55014-2, EN 60204-1, EN 60335-1, EN 61000-3-2, EN 61000-3-3,
EN 61000-4-2, EN 61000-4-4, EN 61000-4-5.
3.3 Main features
In relation to the features described below, refer to g.2.
At motor switch on, a seven-segments display indicates numerical values between 1 and 8 representing speed motor
setting. In the transition from one speed to another one, as well as switching on and switching off, the motor always
follow a proper ramp.
SW3DIGIT
DL
SW1
SW4SW5 SW2
Fig.2
When loads are off, it is possible to do the calibration procedure of the motor speed, by which the user can customize
the value of the minimum, maximum and start speed. After completing the calibration procedure, intermediate speeds
(the speed 2 to 7) are dened by software based on the minimum and maximum setting.
If the user does not perform the calibration procedure for setting the minimum and maxi- mum motor speed, these pa-
rameters have default values.
Press and hold simultaneously for 3 seconds the keys SW3 and SW4 to access the cali- bration procedure of the motor
speed:
the display shows «0», indicating that it is enabled the start speed, and is automatically selected minimum speed that
can be associated to that parameter (it should be noted that this speed, depending on the type of load applied, it may
not be sufcient to start the motor:
in this case press the button SW3 to incre- ment until the motor starts).
Push the SW3 and / or SW4 to increase and / or decrease the speed until you get the desired value for the start speed.
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