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1） Install surge suppressor on the devices generating interference
2） Install filter at the input end of the driver. Refer to Section 7.3.6 for the
specific operations.
3） The lead cables of the control signal cable of the driver and the
detection line employ shielded cable and the shielding layer shall be
earthed reliably.
8.3.4 Handling method for the interferences of servo driver on the surrounding
equipment:
These interferences include two types: one is radiation interference of the
servo driver, and the other is conduction interference of the servo driver. These
two types of interferences cause the surrounding electric equipment to suffer
electromagnetic or electrostatic induction. The surrounding equipment hereby
produces error action. For different interferences, it can be handled by referring
to the following methods:
1) For the measuring meters, receivers and sensors, their signals are
generally weak. If they are placed nearby the driver or together with
the driver in the same control cabinet, they are easy to suffer
interference and thus generate error actions. It is recommended to
handle with the following methods: Put in places far away from the
interference source; do not arrange the signal cables with the power
cables in parallel and never bind them together; both the signal
cables and power cables employ shielded cables and are well
earthed; install ferrite magnetic ring (with suppressing frequency of
30 to 1,000MHz) at the output side of the driver and wind it 2 to 3
cycles; install EMC output filter in more severe conditions.
2) When the equipment suffering interferences and the driver use the
same power supply, it may cause conduction interference. If the
above methods cannot remove the interference, it shall install EMC
filter between the driver and the power supply (refer to Section 7.3.6
for the prototyping operation);
3) The surrounding equipment is separately earthed, which can avoid
the interference caused by the leakage current of the servo driver’s
earth wire when common earth mode is adopted.
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