Siemens SINUMERIK 840DiE sl Manual page 58

2 Hardware Descriptions
2.3 MCI board extension slot variant
2-58
Table 2-6 Pin assignment: Interface X121
Pin Designation
32 M
33 MPG1_B
34 MPG0_A
35 M
36 M
37 MPG0_B
1) VI/VO Voltage Input/Voltage Output
VI Voltage Input
VO Voltage Input
I Input
O Output
Power supply of the digital inputs
MCI board
extension
Optocoupler
Power supply of the digital outputs
MCI board
extension
Optocoupler
Drivers
1)
Type Function
Handwheel PS ground, TTL handwh. ground
VO
Input 2nd handwheel, track B
I
I Input 1st handwheel, track A
VO Handwheel PS ground, TTL handwh. ground
VO Handwheel PS ground, TTL handwh. ground
I Input 1st handwheel, track B
X121
Pin number:
5...8
24...27
M
X121
Pin number:
20,21
3,4,22,23
1,2
M
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
01/2007
ext. power supply
+24V stabilized
+24V 0V
ext. power supply
+24V stabilized
+24V 0V
Relays