Siemens SINAMICS CU240S DP-F Operating Instructions Manual page 19

Table 1-2
The encoder voltage is using the general I/O DIP switches 3 and 4.
The following table shows the possible settings:
Table 1-3
Encoder supply
Warning
DIP switches 3 and 4 in ON position provide a supply voltage of 24 V to the encoder.
Therefore it is not allowed to connect a TTL encoder to the inverter if both DIP switches, 3
and 4 are in ON position.
Control Units CU240S
Operating Instructions (Compact), 04/2006, A5E00766042B AA
Typical Encoder connections
Encoder pin 1xP8001 Encoder
assignment designations
A
B
C
D
E
F
G
H
K
L
M
Encoder voltage settings
On
OFF
3
voltage
Encoder type No encoder
Enocder terminals Rotary Pulse Encoder
U BN
a2
U + 24 V or + 5 V
p
U Z
a0
U ZN
a0
U A
a1
U AN
a1
U -
as
U B
a2
0 V 0 V
0 V -
U -
p
4 3 4
0 V 24 V
HTL encoder
Installing/Mounting
1.1 Fitting the CU to the PM
1XP8001-1/Up = 10 V ... 30 V (HTL)
1XP8001-2/Up = 5 V ± 5 % (TTL)
B
C
L
A
D
K
E
M
J
F
H
G
3 4
5 V
TTL encoder HTL encoder
3 4
24 V
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