Rotary Switch - Siemens SINUMERIK 840D sl Manual

Connection
Note
When a connected handwheel triggers pulses from its idle position or in the event of tiny
contacts, connect it so that the label is facing the wrong way.
Exchange
- The wire of terminal A with the wire of terminal /A
- The wire of terminal B with the wire of terminal /B
The pin assignments of the handwheel interfaces can be found in Section COM board IE
MCP (Page 25).
8.2.2

Rotary switch

Removing the rotary switch
1. Pry off the cap
2. Remove the nut of collet
3. Pull off the complete rotary knob
4. Loosen the lock nut
5. Remove the connector at the end of the rotary switch cable from the slot.
6. Remove the rotary switch.
Figure 8-2
ERGOline Stage 3
Manual, 02/2015, 6FC5397-4FP40-0BA0
③
from the rotary knob
⑤
on the axle of the rotary switch
①
Nut of the collet
②
Rotary knob
③
Cap
④
Rotary switch axle
⑤
Fastening nut
⑥
Scale
Removing a rotary switch
②
(snap on connection).
①
with a wrench (size 10).
②
.
8.2 Replacement
④
with a wrench (size 14).
Spare parts
51