Vaisala HMP230 User Manual Page 162

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APPENDIX 11
WIRING DIAGRAM
Digital cur-
rent loop
In automation system
the galvanically isolated inputs
are recommended for current signals
Main board HMP230 and HMP260
To control system
Supply voltage 24 VDC
max. HMP230 series 100 mA
(with re-gaining 170 mA)
HMP260 series 120 mA
Note ! The cable shield has to be connected to the cable bushing for full EMC protection.
(To control system)
X2
1
2
3
4
1
2
3
1
2
4
Channel1+
Channel1-
Channel2+
Channel2-
RX
GND
TX
NC
-
+
Serial
connections
See manual for
details!
Humidity and
temperature outputs
current/voltage
Max. load for
mA outputs 500 ohm
X6
X1
X1
X2
N
L
+
-
X2
1 2 3 4
4
3
2
1
2 1
X1
X6
Location of main board terminals
X15
Output voltage 24 VDC
-+LN
Supply voltage 115/230 VAC
HMP230PW
optional power supply
module (230/115 VAC)
HMP230PW
Fuse T160 mA
Jumper selections in
connector X15
Current 0...20 mA/4...20 mA
Ch1
Ch2 Ch1
Ch2
Ch1
Ch2
Ch1
Ch2
Ch1
Ch2 Ch1
Ch2
Voltage 0...1 V
See manual for details!
X1 X2
Voltage 0...5 V/0...10 V
+RX
-RX
+TX
-TX
TX
RX
RS 232C RS 485/422
HI
LO
LO
HI
Note.
the output settings must
be also programmed
Security lock jumper
spare
jumpers
Note. HMP230PW module cannot be
used with HMP260 transmitters.
(HMP230: for 24 VAC,
see the Operating Manual)
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