Structure And Wiring Of 5Vdc Ultra High Speed Differential Input Circuit - FATEK FBs Series User Manual

6.2 Structure and Wiring of 5VDC Ultra High Speed Differential Input Circuit

Only the MN main unit of FBs provides the 5VDC ultra high speed differential input circuit, which is mainly used for the
input of hardware high speed counter (HHSC) with a maximum working frequency up to 920 KHz. In practice, to ensure
the high speed and high noise immunity, please use Line-Driver for differential line driving. In environments with small
noise and medium working frequency (＜200KHz), however, it can be changed to the 5VDC single-end SINK or
SOURCE input or to the 24VDC single-end SINK or SOURCE input by connecting a 3KΩ/0.5W resistor in series, as
shown in the figure below.
(A)
Wiring of 5VDC differential input for Line-Driver driving（
environments with large noise
Dual-end input
雙端輸入
(B) Wiring of 5VDC differential input to 5VDC single SINK or SOURCE input
FB
(C)
Method of converting 5VDC differential input to 24VDC single-end SOURCE input
FB
R 1 : 1 0 0 Ω
R 2 : 1 . 2 K Ω
）
FBs-MN main unit
FBS-MN 主機
-MN main unit
S
R1
X0+
SINK input
R2
SINK
X0
R1
X1+
SOURCE
SOURCE
R2
input
X1
FBs-MN main unit -MN 主機
S
R1
X0+
SINK input
R2
SINK
X0
3K
3K
R1
X1+
SOURCE
SOURCE
R2 input
X1
with frequency up to 920KHz for high speed and
External differential output
Twisted-pair
隔離雙絞線
輸入
NPN
SENSOR
PNP
SENSOR
輸入
NPN
輸入
SENSOR
Ω /0.5W
/0.5W
Ω
PNP
SENSOR
輸入
H 6 - 2
感應器輸出
A
(Encoder)
Line-Driver 輸出
B
5VDC
24VDC