Honeywell SV2 Serie Instrucciones De Instalación página 7

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2
4
7
SV2 SERIES VALVE 1
RS-485
MODBUS
+
C
MODBUS
OFF
BIAS
TERMIN.
BIAS
6
SV2 SERIES VALVE 2
RS-485
MODBUS
+
C
MODBUS
OFF
BIAS
TERMIN.
BIAS
6
Fig. 9. HMITOOL-000 diagram for multiple SV2 valves.
IMPORTANT
When intending to connect more than one valve to the HMI, each valve must be individually connected and programmed first, and
each valve given a unique Modbus address. Once this is complete, all valves may be wired in a daisy chain fashion to a single HMI
port.
SV2 Series Valve Programming Tool
HMITOOL-000
HMITOOL-000 DISPLAY
1
COM1
A
B
A
C
1
2
3
4
8
ON
1
1
2
3
2
3
4
5
6
ON
1
7
FOR THE BEST PERFORMANCE, USE SHIELDED WIRE WITH TWO TWISTED PAIRS
2
(BELDEN 9842 OR EQUIVALENT). CONNECT + AND − TO ONE TWISTED PAIR, AND C TO
3
BOTH WIRES OF THE OTHER TWISTED PAIR. CONNECT THE SHIELD TO EARTH GROUND AT
THE END OF THE CONNECTED EXTERNAL DEVICE. DO NOT CONNECT C TO THE SHIELD.
8
RUN LOW VOLTAGE AND LINE VOLTAGE WIRES IN SEPARATE CONDUIT. ROUTE ANY NOISE
PRODUCING WIRES IN CONDUIT SEPARATE FROM THE DISPLAY AND AS FAR AWAY FROM
THE DISPLAY AS POSSIBLE.
5
COM2
B
C
5
6
7
8
24VAC
24VAC RETURN
BUILDING
AUTOMATION
SYSTEM
HMI COM PORTS ARE NOT RESTRICTED TO A SPECIFIC DEVICE, BUT
CAN BE CONNECTED TO A SV2 VALVE(S) OR A BUILDING AUTOMATION
SYSTEM. UP TO A MAXIMUM OF EIGHT SV2 VALVES MAY BE WIRED IN
A DAISY CHAIN FASHION TO A SINGLE HMI PORT.
CONNECT SHIELD TO EARTH GROUND ON ONE END ONLY.
SIZE 24VAC TRANSFORMER ACCORDING TO LOAD REQUIREMENT.
TO PROTECT AGAINST CONDUCTED AND RADIATED TRANSIENT NOISE,
USE CLAMP FILTERS (INCLUDED IN 50063482-001 BAG ASSEMBLY) AS
ILLUSTRATED IN FIGURES 3 AND 4.
"C" TERMINALS ARE CONNECTED INTERNALLY TO 24VAC "COM".
SET VALUE MODBUS BIAS RESISTOR PER THE 'VALVE MODBUS BIAS
SETUP' SECTION OF THIS DOCUMENT.
7
3
M35512B

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Hmitool-000

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