PX Signal Conditioners Data Sheet - 16 / 19 Pages

Signal Converters & Isolators
Frequency To Analogue Converter PXF-20
DESCRIPTION
Frequency converter for converting frequency to an analogue process signal. The frequency converter has NPN/PNP/NAMUR input in 5 ranges from 0-5kHz.
The frequency range for input are selected by a rotary switch and type of analogue output are selected via choice of terminal - see connection diagram.
Features
• NPN/PNP/namur input in 5 ranges.
• Output 0-10VDC/2-10VDC/0-20/4-20mA - selected via terminals.
• Output offset and gain adjustable ±5%.
• Yellow LED indication of input less than 5%.
• Galvanically isolated supply/output.
• Internal sensor supply 12,6V to 14V @ 0-20mA.
• Operating voltage 24-48V AC/DC, 115-230V AC.
WIRING DIAGRAM
-1 1 1+
NPN
PNP
NAMUR
Y0 Y1 Y2 Y3
Uhi
_--[-——' Supply
-A1 L + - A2 0 -
AC DC
OOQ
0
0outIout
VERSIONS/ORDERING CODES
4-20mA output
I I 0-20mA output 0OUT^^JTZ1+Z2 strapped
Type:
Frequency converter
PXF-20 924
PXF-20 [
I L-i 0-10V output 0OUT VOw Z1+Z2 strapped
Supply Voltage:
12-48V AC/DC 115-230V AC
924 230
2-10V output
0o^ Vout
ADJUSTMENT
PXF-20 is delivered adjusted to offset = 0% and gain = 100%. To compensate for any loss in cables, etc. is it possible to adjust the output signal.
Remove the front cover. The offset (zero) and gain (span) on the output signal can be adjusted +/- 5% of max. signal. Put the cover back on to avoid any accidental adjustment of the relay. See fig. 1.
Fig. 1
BLOCK DIAGRAM
A1 +/~
A2 -/0
NAMUR
NPN
-0ߏ3O
-O Y2
-on O
-O Y0
Z1
Z2
-O Iout -O Vout
500 Ohm
-O Oout
K I
PNP
LED indication: Supply voltage Low input 5% of F~ST
PXF-20
^ 0- 0,5
Input/Range Offset Gain
Y0: 0V
Y1: Input NPN
Y2: 12,6-14V @ 0-20mA
Y3: Input PNP/NAMUR
b
Export:
Tel: +45 46 74 00 00 Fax: +45 46 75 73 36 E-mail: bc@brodersencontrols.com
United Kingdom: Tel: +44 020 8546 4283 Fax: +44 020 8547 3628 E-mail: bcs@brodersen.co.uk
Germany:
Tel: +49 208 46954-0 Fax: +49 208 46954-50 E-mail: ba@brodersen.de
88
PX Signal Conditioners Data Sheet
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