Siemens SINUMERIK 840Di Manual page 60

2 Hardware Descriptions
2.3 MCI board extension
2-60
Signal designations
MPGs 0, 1 5V Supply voltage 1 / 2nd Handwheel 0, 5V
MPG 0, 1 0V Supply voltage 1 / 2nd Handwheel 0 V
MPG 0, 1 A, XA 1st / 2nd Differential handwheel input, A, XA
MPG 0, 1 B, XB 1st / 2nd Differential handwheel input, B, XB
MEPUS 0, 1 1. / 2nd Sensor probe input (signal: 24V)
MEPUC 0, 1 1st / 2nd Sensor probe input, (reference: 0V)
INPUT [0...3] 1st to 4th Binary NC input ...
GNDEXT External ground (reference ground for binary NC inputs)
OUTPUT [0...3] 1st to 4th Binary NC output
M24EXT External 24V supply (–) for binary NC outputs
P24EXT External 24V supply (+) for binary NC outputs
Signal type
O Output
VO Voltage Output
I Input
VI Voltage Input
Notice
The maximum current carrying capacity of the handwheel interface of the MCI
board extension module is 1A for both handwheels. 500mA per handwheel.
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03