Siemens SINUMERIK MPP 1500D - Page 41

X51 and X52 are typically used for connecting illuminated keys. The lamps in the keys are
activated via X53 and X54. X55 has no corresponding outputs.
.
M 
L 
9
.
9
.7M,1
.7M,1
.7M,1




0
0
;L
Figure 6-1 Input circuits X51, X52 and X55.
Interface: Optional customer keys IN
Connector designation: X51 / X52 / X55
Connector type: 4-pin male connector
Maximum cable length: 2 m
Table 6-10 Assignment of connector X51
Pin Name Type Meaning
1 KT-IN1 I Customer key 1
2 KT-IN2 I Customer key 2
3 KT-IN3 I Customer key 3
4 M V Ground
Table 6-11 Assignment of connector X52
Pin Name Type Meaning
1 KT-IN4 I Customer key 4
2 KT-IN5 I Customer key 5
3 KT-IN6 I Customer key 6
4 M V Ground
Table 6-12 Assignment of connector X55
Pin Name Type Meaning
1 KT-IN7 I Customer key 7
2 KT-IN8 I Customer key 8
Connecting up
6.3 Pin assignment of the interfaces
Machine Push Button Panel: MPP 1500D / MPP 1500E
Equipment Manual, 04/2021, A5E50753610B AA 41