Siemens SINUMERIK 840D sl Manual page 91

Operator panel front
When replacing the operator panel front, the previous USB interface, display and keyboard
controller can continue to be used. They are therefore disassembled and reassembled after the
appropriate component has been replaced.
Note
We recommend reusing the keypad controller to prevent any loss of the control parameters that
have been programmed in.
Procedure
1. Put the OP 012 face down on a flat, soft surface and loosen the 12 housing screws (see
figure: "Rear of the OP 012 (Page 22)").
2. Remove the softkey labeling strips and the cover plate.
3. Remove connector X14 for the backlight
controller
4. Remove connector X4 for the touchpad mouse
5. Lift off the display support with the display.
The rear of the front USB interface
6. After bending back the two lugs, withdraw the front USB interface
7. Disconnect the two membrane connectors
sockets X7 and X8 (procedure: see note).
8. Remove the fixing screws from the keyboard controller
9. Lift the front USB interface
interconnections may remain plugged.
10.Install the components into the new operator front panel in reverse order (procedure: see
note).
Note
Descriptions of how to disconnect and connect the membrane connector can be found in
"General information and networking", Chapter: "Connecting", Section: "Handling
membrane connectors".
When tightening the screws, observe the torques (refer to Section: "Technical data").
Operator panel front: OP 012
Manual, 05/2019, A5E36371591B AB
③
.
②
and keyboard controller
⑧
and the IO-USB cable K1
⑨
.
②
becomes visible near the keyboard controller
⑥
of the operator panel front keyboard from
③
.
③
off the front plate. The
Spare parts
8.2 Replacement
④
from the keyboard
③
.
②
.
91