BECKHOFF CP39xx - Manual (Page 11)

Product Description
2.3.2 Fitted with mounting arm adapter
If the Control Panel is fitted with a mounting arm adapter (order option C9900-M750 to C9900-M753), the
connectors are located behind the cover (1).
1
You can easily lever up the cover in direction of the arrow with a suitable tool. After removing the cover
you have access to the connections (2).
2
The installation of the cover takes place in reverse order.
CP39xx 9