Elettronica Santerno SINUS K, User Manual

Page: 169 / 191

SINUS K
INSTALLATION
INSTRUCTIONS
169/ 191
ES836/2
EncEEncod
d
Encoder
with PNP
or NPN outputs
1
CHA
2 CH
A
3
CHB
4
CHB
5
CHZ
6
CHZ
7
+
V
E
8 GNDE
9 GNDE
PNP
NPN
P000593-B
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4
Figure 84: PNP or NPN encoder with single-ended outputs and internal load resistors.
NOTE
Incorporated load resistors may be used only if NPN or PNP encoders are
compatible with pull-up or pull-down external resistors (4.7k
Ω)
.
NOTE
NPN or PNP encoders cause pulse distortions due to a difference in ramp up and
ramp down edges. Distortion depends on the load resistor ratings and the wire
stray capacitance. PNP or NPN encoders should not be used for applications with
an encoder output frequency exceeding a few kHz dozens. For such applications,
use encoders with Push-Pull outputs, or better with a differential line-driver output.