Relay activated after 3 seconds Relay deactivated after 7 seconds Relay activated after 7 seconds Relay deactivated after 3 seconds
24Vac ± 15% - 50/60Hz - 1VA 5A - 250Vac - 1000VA - AC1 2kV (RMS)
1 10 Vdc
3 7 seconds

MP2000 AIR CONDITIONERS

Sistema di controllo a microprocessore per condizionatori d'aria • Air conditioners microprocessor control system

CONVERTITORE DI SEGNALE A 3 STADI - RC470

Il dispositivo è posizionato all'interno del quadro elettrico e trova la sua principale applicazione per trasformare un segnale di tensione (010Vdc) in 3 stadi di uscita sequenziali ON-OFF, liberi da tensione.

3-STAGES SIGNAL CONVERTER - RC470

The device is placed in the electric box and it has been designed to transform a 010Vdc proportional signal in 3 sequential ON-OFF stage volt free.

80

1 2 3

SIGNAL CONVERTER RC470

7 8 9

5

4

 

24Vac

 

0V

 

 

 

~

 

=

 

 

 

6

 

7s

 

5

 

DELAY

4

 

3

 

 

+

 

 

3

-

 

 

+

 

 

 

 

 

2

-

 

 

+

 

 

 

 

10Vdc

1

-

 

 

 

 

 

 

6

0..

 

 

 

40

V 10

 

9

 

8

 

7

3

6

2

5

3

1

4

2

 

3

1

 

2

 

1

 

 

¡C

 

%rH

 

kPa

 

75

Fig. 89

FUNZIONI

I relè intervengono ad una tensione prestabilita semplifi- cando così le modalità di taratura manuale che risultano essere difficoltose ed imprecise.

La logica di funzionamento prevede che primo relè si attivi con un segnale proporzionale proveniente dal micropro- cessore di 7Vdc, il secondo relè a 8Vdc ed il terzo a 9Vdc. L'intervento dei relè 2 e 3 è ritardato di un valore temporale impostato tramite il potenziometro "DELAY" per un periodo compreso tra 3 e 7 secondi.

Se, durante il periodo di temporizzazione, il segnale pro- porzionale torna al di sotto della soglia del rispettivo relè, il temporizzatore si ripristina non attivando il relè.

Con un segnale proporzionale 9Vdc tutti i relè sono attivati in sequenza. Per disattivare il terzo relè occorrerà che il segnale proporzionale scenda a 3Vdc, per il secondo a 2Vdc e per il primo a 1Vdc.

Per la disattivazione dei relè 1 e 2 l'apparecchio temporizza l'intervento con un valore temporale inversamente propor- zionale al settaggio effettuato.

Sono presenti LED per segnalazione presenza tensione (verde) ed intervento di ogni relè (rosso).

Esempio:

DELAY 3s: Attivazione relè dopo 3 secondi Disattivazione relè dopo 7 secondi

DELAY 7s: Attivazione relè dopo 7 secondi Disattivazione relè dopo 3 secondi

DATI TECNICI

24Vac ± 15%

 

Alimentazione

- 50/60Hz - 1VA

Potenza commutabile

5A - 250Vac - 1000VA - AC1

Isolamento

2kV (RMS)

 

Ingresso segnale

1

10 Vdc

 

Ritardo

3

7 secondi

 

FUNCTIONS

The relays activates at a pre-scheduled voltage in order to simplify manual settings otherwise complicate and impre- cise.

The system logic is designed to activate first relay with a 7Vdc proportional signal, the second with a 8Vdc signal and the third with a 9Vdc one.

The intervention of second and third relays is delayed of a time adjustable between 3 and 7 seconds through the "DELAY" potentiometer.

If during the set period of delay, the signal fall back below respective threshold, the timer is reset to zero and the relay is not activated.

With a proportional signal 9Vdc all relays are activated in sequence. To obtain the deactivation of third relay the signal will have to drop to 3Vdc, while to deactivate the second to 2Vdc and the first to 1Vdc.

To deactivate relays 1 and 2 the device is delaying the intervention at a time proportional to the set value.

A green LED to indicate voltage presence is installed on the device and every relay is having a red LED to signal activated mode.

Example: DELAY 3s:

DELAY 7s:

TECHNICAL DATA

Feeding

Switching power

Insulation

Signal input

Delay

RC GROUP - 149_ItEn.0102

155

Page 155
Image 155
Dell MP2000 manual Convertitore DI Segnale a 3 Stadi RC470, Stages Signal Converter RC470, RC Group 149ItEn.0102 155

MP2000 specifications

The Dell MP2000 is a versatile multimedia projector designed to deliver impressive performance for both business and entertainment purposes. This projector offers a sleek design and robust features, making it an ideal choice for presentations, classroom environments, and home theater setups.

One of the standout features of the Dell MP2000 is its high brightness capability. With a brightness rating of about 3,000 ANSI lumens, it ensures clear and vivid projections even in well-lit environments. This brightness level makes it suitable for various settings, from large conference rooms to small classrooms, ensuring that the content is easily visible to all audiences.

In addition to its brightness, the MP2000 boasts a native resolution of XGA (1024x768 pixels), providing sharp and detailed images. The projector supports a range of resolutions up to UXGA (1600x1200), ensuring compatibility with various media formats. This versatility allows users to project high-quality videos, presentations, and images with excellent clarity.

The MP2000 employs DLP (Digital Light Processing) technology, which enhances image quality and color accuracy. DLP is known for its superior brightness and contrast characteristics, giving presentations a professional look. The projector’s color wheel ensures vibrant colors, making it perfect for showcasing graphics and videos.

Connectivity options on the Dell MP2000 are extensive, catering to various devices and media sources. It includes multiple input ports, such as VGA, HDMI, and USB, allowing easy connection to laptops, desktops, and other devices. The inclusion of an RS-232 port also enables integration into larger AV systems for more streamlined control.

Portability is another key characteristic of the MP2000. Weighing less than 5 pounds, it is easy to transport, making it a great option for traveling professionals or educators who need to move between locations. The projector also features an intuitive interface and remote control, facilitating user-friendly navigation through menus and settings.

For added convenience, the MP2000 supports rapid startup and shutdown processes, reducing waiting times between presentations. Its lamp life is impressive, lasting up to 5,000 hours in eco mode, which minimizes maintenance costs and ensures longevity.

In conclusion, the Dell MP2000 is a powerful and reliable projector that excels in brightness, image quality, and connectivity. Its DLP technology, portability, and user-friendly features make it a top choice for anyone looking to enhance their presentation or home viewing experience. Whether for educational purposes or business meetings, the MP2000 delivers outstanding performance and versatility.