1-13
Digital Input, Cont.
Example
Connections
POINT CONNECTIONS
SIG
GND
OR
SWITCH
GND
OPTO
COUPLER
SIG
GND
NPN
SIG
OR
DEBOUNCE SELECT
GND
SIG
.1UF
+5
1K
INPUT SENSE
10K
GND
TYPICAL VOLTAGE INPUT FIELD
SIG
FIELD DEVICE
COMMON (GND)
SIGNAL
OUTPUT
15 VDC MAX.
-0.5 VDC MIN.
3.1 VDC
0.5 VDC
GND
SIG
DEBOUNCE SELECT
1K
+5
.1UF
10K
INPUT SENSE
Digital Output
The Totalflow XRC provides 4 digital (12Vdc) outputs as a means to control external
equipment with the XRC. See Figure 1–5, Item Nos. 15 & 16.
When connecting or disconnecting any wires to the XRC-195 Board, you
should remove all power sources and make sure that you are grounded
properly.
If the digital output is used in conjunction with a measurement device;
AGA3, AGA7 or Liquid Measurement, the following outputs can be
triggered when the following conditions occur:
•
Differential pressure over high limit
•
Volume
Set
Point
•
Differential Pressure under low
limit
•
Flowing Temperature Low
•
Static Pressure over high limit
•
Flowing Temperature High
•
Static Pressure under low limit
•
Flow Rate Low
•
Low Charger voltage
•
Flow Rate High
•
Remote Sense is ON
•
Trip on Digital Input
Digital Outputs
Other Applications are:
•
Custom programmable by Totalflow or user programmable with IEC
61131 programming language.
Continued on Next Page
Summary of Contents for XRC6490
Page 1: ...2100802 001 AB TOTALFLOW XSeries Remote Controller User s Manual ...
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Page 19: ...1 5 Standard Enclosure Cont RC 6790 X Figure 1 2 Model XRC6790 Continued on Next Page ...
Page 41: ...1 27 Totalflow Input Output Modules Cont Figure 1 16 XRC6990 Inside View ...
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Page 86: ...4 12 Replacing XRC 195 Board Cont Figure 4 5 XRC Board Connections ...
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Page 112: ...5 24 12V Communication Supply Voltage Test Cont Figure 5 9 XRC 195 Communication Wiring ...
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