Installation
Page 18
AC_F110_BA_02_1346
November 2014
Pulse signal PNP
Reed switch:
The F110 is suitable for flow meters which have a reed switch. To avoid pulse bounce from the reed-switch, it is advised to
select REED LP - low-pass filter (setup 51). (Note maximum frequency 8.5 Hz for Reed LP)
NAMUR-Signal:
The signal input is according DIN19 234. Please note that an external power supply is required.
7.5.7
OPTION – COMMUNICATION / PRINTER RS232/RS485
See the manufacturer's plate.
A full serial computer control and driving in accordance with RS232 (length of cable max. 15 meters) or RS485 (length of cable
max. 1200 meters) is possible. See the Modbus communication protocol.
low-pass filer
selection PNP-lp
GND
Internal
External
shielding
+3.2V DC
Signal
GND
⊥
100K
PNP
low pass filer sel.
REED-LP
GND
Internal
External
shielding
Reed-
switch
GND
⊥
Signal
+3.2 VDC
1M
GND
shielding
GND
⊥
Signal
820 Ohm
Namur
+8.1 VDC
External
Internal
