Siemens SINUMERIK 840D sl OP 010 - Handling Membrane Connectors

16 digital inputs can be polled by the X70/X205/DTM connector.
Connector designation: X70/X205/DTM
Connector type: 20-pin plug connector
Max. cable length: 0.85 m
Table 1-24 Assignment of connector X70 (MCP, MPP, HAM) / X205 (TCU) / DTM
Pin Name Type Meaning
1 DT1
I
1)
Direct key 1
... ... ...
16 DT16 Direct key 16
17 P5V / CON1
2)
V
+ 5 V input voltage
3)
18 P5V / CON2
2)
+ 5 V input voltage
3)
19 GND Ground
20 GND Ground
1)
The inputs are electrically isolated for MCP / MPP / HAM and DTM.
2)
For the TCU, it is evaluated whether the direct keys have been connected.
3)
Power consumption: 100 mA for MCP / MPP / HAM; 500 mA for DTM
Table 1-25 Signal level
HIGH level: 5 V or open
Low level <= 0.8 V
1.3.2 Handling membrane connectors
When replacing parts it can sometimes be necessary to disconnect membrane connectors
from the boards and reconnect them again.
This should be done as follows:

(1) Clamping frame of socket
Figure 1-8 Removing (left) and attaching (right) a membrane connector
General information and networking
1.3 Connecting
Operator panel front: OP 010
Manual, 07/2018, A5E36371538B 35