ALFA(NET) 71 PI -10/+90°C
Doc.no.: 151043 version 1.1
Pagina 6 van 8
12
Function diagram
Страница 1: ...r The ALFANET 71 PI is provided with an RS 485 network connection and can be readout or set by an PC with the ALFANET program connected thru an ALFANET PC Interface 2 Installation On the connection diagram of the ALFA NET 71 PI is shown how the sensors analogue output power supply relays and optional network are to be connected After connecting the ALFA NET 71 PI to the power supply a self test fu...
Страница 2: ...P or DOWN keys to change the setpoint A few seconds after releasing the keys the measured temperature shows again in the display 6 Status of the relays By pushing the C key the display shows the status of the relays Each display segment shows the status of the relay output showing 0 off and 1 on The code 110 means relay 1 and 2 are on and relay 3 is off 7 Viewing the PI output percentage Push the ...
Страница 3: ...y depends on parameter P37 10 Technical data Type ALFA 71 PI 10 90 C or ALFANET 71 PI 10 90 C Range 10 90 C readout per 0 1 C Supply 12 Vac 50 60Hz 5 10 Display 3 digit 7 segment LED display Sensor SM 811 2 Wire PTC 1000Ω 25 C Relays Ry1 SPST NO 250V 8A cosphi 1 or 250V 5A cosphi 0 4 Ry2 SPST NO 250V 8A cosphi 1 or 250V 5A cosphi 0 4 Ry3 SPDT NO NC 250V 8A cosphi 1 or 250V 5A cosphi 0 4 Relays hav...
Страница 4: ...1 1 Cool 2 Heat 3 Alarm 1 3 1 02 Function Relay 2 same as parm P01 1 3 2 03 Function Relay 3 same as parm P01 1 3 3 04 Function PI output 1 Cool 2 Heat 3 Cool and Heat 1 3 1 05 Offset temperature sensor Calibration 15 0 15 0 C 0 0 06 Offset PI 15 0 15 0 C 0 0 07 P band setting 0 0 20 0 C 5 0 08 I time setting I action not active at P08 0 of P04 3 0 99 Minutes 0 off 10 Switch on stage two 0 Temp 1 ...
Страница 5: ... Time delay minimum alarm 0 99 Minutes 0 34 Time delay maximum alarm 0 99 Minutes 0 35 Function alarm relay 0 Watch alarm 1 Control alarm 0 1 0 36 Reset alarm relay after recovering alarm 0 No 1 Yes 0 37 Reset alarm relay after manual reset 0 No 1 Yes 0 40 Start up delay after power failure 0 99 Minutes 0 41 Forced relay function at sensor failure 0 None 1 Cool 2 Heat 0 2 0 90 Network number only ...
Страница 6: ...ALFA NET 71 PI 10 90 C Doc no 151043 version 1 1 Pagina 6 van 8 12 Function diagram ...
Страница 7: ...ALFA NET 71 PI 10 90 C Doc no 151043 version 1 1 Pagina 7 van 8 13 Connections ...
Страница 8: ...Doc no 151043 version 1 1 Pagina 8 van 8 14 Dimensions 15 Address VDH Products B V Tel 31 0 50 30 28 900 Productieweg 1 Fax 31 0 50 30 28 980 9301 ZS Roden Email info vdhproducts nl The Netherlands Internet www vdhproducts nl ...
