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Description
4.4 Operator control and display elements
Only appropriately trained personnel may use the operating elements provided in the service
area.
NOTICE
Electrostatic discharge if there is no ground connection
If there is no ground connection or a faulty ground connection, then the electronic
components in the devices can be damaged as a result of electrostatic discharge (ESD).
• Before you open the service flap, discharge yourself at the cabinet or at the ground terminal.
①
②
③
④
⑤
⑥
Figure 4-4
36
LED display
7-segment display
NCK commissioning switch (rotary switch)
Reset button
Diagnostics button
PLC mode selector switch (toggle switch)
Position of operator control and display elements
Equipment Manual, 10/2023, A5E45627807B AH
NCU 1750
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