Parker EME
Signal interfaces
192-120149 N08 June 2014
35
3.5.5.2
M21 analog input option
Connector assignment Option M21 X20
X20: Current inputs (0 ... 20 mA)
Pin
Name
Function
Internal input
channel
1
+24Vout
Sensor supply 0 (output)
1)
AI0
2
in0+
Current input 0 + (0 ... 20 mA)
3
GND
Sensor supply 0 (output)
1)
4
in0-
Current input 0 - (0 ... 20 mA)
5
+24Vout
Sensor supply 1 (output) 24 VDC out
1)
AI1
6
iin1+
Current input 1 + (0 ... 20 mA)
7
GND
Sensor supply 1 (output)
1)
8
in1-
Current input 1 - (0 ... 20 mA)
9
+24Vout
Sensor supply 2 (output)
1)
AI2
10
in2+
Current input 2 + (0 ... 20 mA)
11
GND
Sensor supply 2 (output)
1)
12
in2-
Current input 2 - (0 ... 20 mA)
13
+24Vin
Sensor supply input 24 VDC in
Supply for pin
1/3, 5/7 and
9/11.
2)
14
GND in
Sensor supply input
15
Shield
Shield connection
16
Shield
Shield connection
Input resistor 250
Ω
1)
For sensor supply - optional; the differential inputs may also be used. Supply takes
also place via X20 pin 13 and 14.
2)
Only required if these voltage outputs are used for the sensor supply
Wiring of the analog current inputs
Input IN0
10pF
200K
Ω
200K
Ω
In0-
200K
Ω
X1/4
200K
Ω
In0+
X1/3
250
Ω
Compax3
IN0 to IN3 do have the same wiring!
Pin assignment X1
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