Moog G305-170, Operation Manual

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MSD Single-Axis System Operation Manual AC-AC Servo Drive
ID no.: CA65642-001 06/2018
moog
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Electrical installation
4.2.7 Shielding measures
You should take into account the following points for the shielding measures:
y
Use only shielded mains, motor and signal cables. For all shielded connections, use cables with
double copper braiding with 60 to 70 % coverage.
y
Connect the shield at both ends using a large area connection. Extending the shield to the
earthing point using a wire (pigtail) reduces the shielding effect by up to 90 %.
Figure 4.1 CORRECT shield connection
Figure 4.2 INCORRECT shield connection - do not extend to the earthing point (pigtail)
Figure 4.3 Shield connection
y
Do not strip back too far the shield.
y Shields are not allowed to be used to carry power, e.g. as a substitute for the N or PE conductor.
y
The shielding effect can be improved by laying in metal ducts/tubes.
y Shields must be connected at one end as a minimum. Connection at multiple points is
recommended, otherwise potential equalisation currents may flow in physically extensive
installations.
4.2.8 External components
y Place larger loads near the supply.
y Contactors, relays, solenoid valves (switched inductances) must be wired with suppressors.
The wiring must be directly connected to the respective coil.
y Any switched inductance should be at least 200 mm (7.87 in) away from the process controlled
assemblies.
If you require further detailed information on installation, please contact the
Moog Helpline, see chapter 1.10.