Siemens SINUMERIK 840Di Manual page 67

06.03
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
2.4 MCI board extension slot variation (SW 11.00 and higher)
Table 2-9 Pin assignment: Interface X121
Pin Designation
30 MPG1_A
31 M
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
Driver
S
The maximum cable length is 25m for all functions.
2 Hardware Descriptions
1)
Type
I input 2nd Input handwheel, track A
VO Hand wheel PS ground, TTL handwh. ground
VO Hand wheel PS ground, TTL handwh. ground
I input 2nd Input handwheel, track B
I input 1st Input handwheel, track A
VO Hand wheel PS ground, TTL handwh. ground
VO Hand wheel PS ground, TTL handwh. ground
I input 1st Input handwheel, track B
X121
Pin number:
5...8
24...27
M
X121
Pin number:
20,21
3,4,22,23
1,2
M
Function
Ext. power supply
+24V stabilized
+24V 0V
Ext. power supply
+24V stabilized
+24V 0V
Relays
2-67