Siemens simatic s7-400 FM 450-1 - Page 30

Wiring
4.4 Module status after power is switched on
Counter module FM 450-1
30 Manual, 02/2014, A5E03648739-02
Assignment of front connector
Table 4- 1 Assignment of front connector
Terminal
Name
Inputs/
outputs
Function
5 V encoder RS
422, symmetrical
24 V encoder,
asymmetric
24-V pulse
encoder with
direction level
24 V initiator
1
-
2
-
3
1L+
ON
24 V auxiliary voltage supply for encoders
4
1M
ON
Auxiliary voltage ground to supply encoders
Counter 1
5
1 A
ON
Encoder signal A
-
6
1 /A
ON
Encoder signal /A
-
7
1 B
ON
Encoder signal B
-
8
1 /B
ON
Encoder signal /B
-
9
1 N
ON
Encoder signal N
-
10
1 /N
ON
Encoder signal /N
-
11
1 A*
ON
-
Encoder signal A*
12
1 B*
ON
-
Encoder signal B*
Directional signal
-
13
1 N*
ON
-
Encoder signal N*
-
14
1M
OFF
Ground for encoder power supply
15 5.2 VDC OFF 5.2 V encoder
power supply
-
16
24 VDC
OFF
-
24 V encoder power supply
Counter 2
17
2 A
ON
Encoder signal A
-
18
2 /A
ON
Encoder signal /A
-
19
2 B
ON
Encoder signal B
-
20
2 /B
ON
Encoder signal /B
-
21
2 N
ON
Encoder signal N
-
22
2 /N
ON
Encoder signal /N
-
23
2 A*
ON
-
Encoder signal A*
24
2 B*
ON
-
Encoder signal B*, directional signal
25
2 N*
ON
-
Encoder signal N*
26
1M
OFF
Ground for encoder power supply
27 5,2 VDC OFF 5,2 V encoder
power supply
-
28
24 VDC
OFF
-
24 V encoder power supply