Terminal Box Pn; Description - Siemens SINUMERIK 840D sl Equipment Manual

Connecting
7.2 Terminal Box PN
If no HT 8 is connected, observe the following:
NOTICE
Unauthorized access
• After disconnection, the HT 8 must be locked away.
• Emergency stop buttons that are inactive must not be identified as such or must be
Note
An example of TCU and MCP xxx PN as well as optionally an HT 8 or HT 2 on a PN box / PN module
can be found in Chapter: "HT 2", Section: "Commissioning" → "Application example of HT8 and
HT 2 in mixed operation".
7.2

Terminal Box PN

7.2.1

Description

①
②
③
④
⑤
Figure 7-2
Note
Degree of protection IP65 at the terminal box is ensured with plugged-in HT 8 or plugged-in
dummy cap.
100
inaccessible. This is to prevent the emergency stop button from being used inadvertently.
LED displays for the communication
Screwed joint for power supply cable and shield
Screwed joint for cable with safety signals and enabling button signals and for PLC accompanying
signals
Connecting socket for the connector plug of the connecting cable (covered with blanking cover)
Screwed joint for process data cables (Ethernet)
View of the PN terminal box
Handheld Terminal HT 8
Equipment Manual, 02/2024, A5E52918633B AA