12
Dual Output 3-Way Signal Isolator
K3FP-VS-UI-2I
DIP Switch Settings
All DIP switches are turned OFF at shipment. DIP switch S1 is used
to select input and output signals and analog output limit operation.
Note:
Do not turn ON both pins 5 and 6 at the same time on DIP
switch S1.
Analog Output Operation
Setting Example for 1 to 5-V Input and 4 to 20-mA Output:
Note:
The following table shows the output values that are held when
the measurement range is exceeded while the limit function is
enabled for analog outputs (i.e., pin 4 on DIP switch S1 turned
ON).
Connections
■
Internal Block Diagram
SWITCH
DIP switch S1
ON
●
↑
OFF
❍
↓
1
2
3
4
5
6
Input signal
0 to 10 V
❍
❍
❍
1 to 5 V
❍
●
❍
0 to 20 mA
●
❍
●
4 to 20 mA
●
●
●
Analog output limit operation
Limit function disabled
❍
Limit function enabled
●
Output 1 signal Output 2 signal
0 to 20 mA
0 to 20 mA
❍
❍
0 to 20 mA
4 to 20 mA
●
❍
4 to 20 mA
4 to 20 mA
❍
●
---
---
●
●
Output signal
selection
Below measurement
range
Above measurement
range
0 to 20 mA
The output signal is held
at 0 mA.
The diagnostics indicator
is lit (red) if the analog
output is 20.5 mA or
higher.
The output signal is held
at 20.5 mA.
4 to 20 mA
The output signal is held
at 4 mA.
The diagnostics indicator
is lit (red) if the analog
output is 3.5 mA or lower.
The diagnostics indicator
is lit (red) if the analog
output is 20.5 mA or
higher.
The output signal is held
at 20.5 mA.
(mA)
23
Output: 4 to 20 mA
Below normal
operating range
Normal operating range
Above normal
operating range
Analog operation
(less than 23 mA)
Limit (20.5 mA)
Input: 1 to 5 V
20
10
4
0
1
2
3
4
5
(V)
K3FP-1
1
2
3
4
Input signal
Output 2 signal
−
+
−
+
5
6
7
8
−
+
−
+
Output 1 signal
Supply voltage
