Siemens PC 870 manual Operating unit Computing unit

Mounting

Knurled screw

Hinge

Operating unit Computing unit

Knurled screw

Hinge

Fig. 3-5 Joining the operating and computing units

Installation with Proceed as follows (Figure 3-6): screw fixing

Drill hole covers

Fig. 3-6 Installation with screw fixing

1.Drill suitable holes around the prepared mounting cut-out (see Section 3.1) as specified for L4 and L5 in Figure 3-3.

2.Carefully knock out the drill hole covers on the front side of the ope- rating unit.

3.Fix the operating unit at the drill holes using suitable screws and nuts.

4.Continue as from step 3 for clamp fixing.

3-6	SIMATIC Panel PC 670 / 870 Operating Unit, Equipment Manual
	Edition 07/01