Summary of Contents for Intec Controls IVA-420I
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Page 1: User Manual
Digital Signal Converter IVA-420I User Manual ERP 511399 2/07 12700 Stowe Dr., Ste 100 Poway, CA 92064 Ph: 858-578-7887 Fx: 858-578-4633 Email: info@inteccontrols.com www.inteccontrols.com... -
Page 2: Symbol Definitions
WARNING symbol on the equipment refers the user to the product manual for additional information. The symbol appears next to required information in the manual. 511399 IVA-420I User Manual 2/07... -
Page 3: Table Of Contents
4-20 mA Output Loop-powered Operation ........17 4-20 mA Output Configuration ............19 WIRING DETAILS ............20 SPECIFICATIONS ............21 LED Position and Significance ............21 4-20 mA Output Adjustments ............21 DIP Switch Settings ................23 510977 IVA-420I User Manual 2/07... -
Page 5: Introduction
Avoid any location where temperature changes occur rapidly. • Verify all the requirements and existing regulations which may affect the choice of location. • Conduit installation must conform to local fire, building and electrical codes. 511399 IVA-420I User Manual 2/07... -
Page 6: Available Configurations
Configuration section). Available Configurations This section provides details on the various IVA-420I configurations available as well as various wiring diagrams. The IVA-420I converter may be configured in three modes: Listening, Polling and Split Address. Listening Mode In this mode, the IVA-420I only listens to the information transmitted between the controller and the transmitters. -
Page 7: Polling Mode
4 points per gas. Addresses 1 to 4 are for the first gas and addresses 9 to 12 for the second gas. On the IVA-420I, the addresses are fixed. Addresses 1 to 4 are attributed to the first 4 outputs and addresses 9 to 12 are attributed to the last 4 outputs. -
Page 8: Available Configuration For 301C
89-96. See DIP Switch settings for further details). There are also three (3) statistic values available for selected groups: Minimum, Maximum and Average. Each converted signal is associated to the following outputs; Output J20: Average; Output J18: Minimum; Output J16: Maximum. IVA-420I User Manual 511399 2/07... - Page 9 2. Measure and mark mounting holes (as shown) 3. Pre-drill or prepare as required by mounting surface (drywall plugs, etc.) 4. Position unit and align mounting holes with markings and install necessary screws. Note: Remember to remove knock-outs before mounting the unit. 511399 IVA-420I User Manual 2/07...
- Page 10 A dedicated power supply must be used with each unit. WARNING Considerable damage may occur if this condition is not strictly met. P.U. P.D. SHIELD OUTPUT 1 - 8 Power Supply DDC System 24 Vac IVA-420I User Manual 511399 2/07...
- Page 11 Total Impedance 12 Vdc 400 Ohms 16 Vdc 600 Ohms 20 Vdc 800 Ohms 24 Vdc 1000 Ohms 30 Vdc 1300 Ohms 3-wire configuration P.U. P.D. SHIELD OUTPUT 1 - 8 DDC System DC Power Supply 511399 IVA-420I User Manual 2/07...
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Page 12: Ma Output Configuration
24 Vac 4-20 mA Output Configuration The IVA-420I has 8 4-20 mA outputs. It converts a digital signal entering at J15 into an analog signal through outputs J16 to J23 . The output signal is linear to the input. The 4 mA output represents the minimum scale from the input and the 20 mA output represents the maximum scale from the input. -
Page 13: Wiring Details
Current Sourcing: S2 to S9 jumpers at 1-2, 3-4 and 5-6 Loop-Powered: S2 to S9 jumpers at 2-3, 4-5 and 6-7 When the output reads 3.33mA, the IVA-420I does not see the corresponding transmitter. A dedicated power source must be used with the IVA-420I when WARNING using current sourcing as input 4-20mA configuration. -
Page 14: Specifications
CSA C22.2 no.205M1983(R1999) LED Descriptions PCB version 6 and before PCB version 7 and up LED 1: Power LD5: Power LED 4: Digital to analog signal LD2: Fault (DAC) LED 5: Micro-controller D6: Communication LED IVA-420I User Manual 511399 2/07... -
Page 15: Ma Output Adjustments
Set Dipswitch S1 as follows for 20 mA adjustment: Dip1: OFF Dip2: ON Dip3: ON Dip4: OFF With your ampmeter at each output, adjust the 20 mA with potentiometers P1 through P8. Once completed, replace the settings to their original places. 511399 IVA-420I User Manual 2/07... -
Page 16: Dip Switch Settings
Changing the IVA-420I Configuration DIP Switch Settings Changing the IVA-420I Configuration DIP Switch Settings Mode Interrogation mode; Adr. 9-16 Interrogation mode; Adr. 1-8 Listen mode; Adr 9-16 Listen mode; Adr. 1-8 Output adjustment; 4mA Interrogation mode; split adr 1-4, 9-12 Output adjustment: 20mA Listen mode;...
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