5 Installation
28
Version: 1.2.0
PZ234D
P-62x Positioners
Connecting the protective earth conductor via the mounting holes (P-620 and
P-621.2xx/.2U only)
Figure 9: Positioner on a surface that must be connected to a protective earth conductor; for
mounting holes, see arrows.
1.
Optional: Align the positioner using the locating holes (p. 48) in the base body and the
dowel pins supplied.
2.
Mount the positioner onto an electrically conductive surface connected to a suitable
protective earth conductor:
a)
If the screw set includes lock washers, place a lock washer onto each screw.
b)
Insert a screw into each of the four mounting holes (see figure). If lock washers are
intended, insert each screw together with the lock washer.
The mounting holes are marked respectively with the protective earth conductor
symbol .
c)
Tighten each of the four screws with at least four turns to the torque (p. 51)
specified for the screws.
3.
Make sure that the contact resistance is <0.1
Ω
at 25 A at all connection points relevant
for attaching the protective earth conductor.
