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The arrangement of the recesses in the mounting rails of the E-871.1A1N can be seen in
the figure.
2. Tighten the E-871.1A1N to the recesses provided with suitable screws.
6.2
Connecting the E-871.1A1N to the Protective Earth Conductor
The E-871.1A1N is not grounded via the voltage connection and must therefore be connected
to the protective earth conductor. The protective earth connector is on the right-hand rear
mounting rail of the E-871.1A1N.
Figure 4: Connecting the protective earth conductor to the threaded bolt
1. Flat washer
2. Cable lug of the protective earth conductor
3. Spring washer
4. Nut
Tools and Accessories
■
Suitable protective earth conductor with cable lug:
■
Cable cross section
≥
0.75 mm
2
■
Contact resistance < 0.1 ohm at 25 A at all connection points relevant for attaching the
protective earth conductor
■
Suitable wrench
Requirements
✓
You have read and understood the
general safety instructions (p. 11)
.
✓
The E-871.1A1N is not connected to the power supply.
Information
►
Observe the applicable standards for connecting the protective earth conductor.
Connecting the E-871.1A1N to the Protective Earth Conductor
1. Remove the outer nut and the spring washer from the threaded bolt of the protective
earth connector.
2. Push the cable lug of the protective earth conductor and the spring washer onto the
threaded bolt.
3. Screw the nut onto the threaded bolt again.
➔
The cable lug of the protective earth conductor is clamped between the flat washer and
the spring washer.
4. Tighten the nut with at least three turns and a torque of 1.2 Nm to 1.5 Nm.
6 INSTALLATION
PZ285EN
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1/30/2019
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M O T I O N | P O S I T I O N I N G