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Electrical installation | 7
User Manual – JM-100x-S1
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7 Electrical installation
7.1 General remarks
The user is responsible for ensuring that the installation of servo amplifier
JM-100x, motor, and other devices complies with the safety instructions (e. g.
DIN, VDE), as well as with all other relevant federal or local regulations as to di-
mensioning of conductors, protection, grounding, breakers, overcurrent protec-
tion, etc.
Only qualified personnel who have completed an electrotechnical education, and
who are familiar with the documentation and the warnings and precautions given
therein.
Damaged products must not be installed.
The allowed input voltage range of the servo amplifier must not be exceeded.
The rated voltage of the connected motors must be higher than, or at least equal
to, the supply voltage (X1).
7.1.1 Electromagnetic compatibility
To avoid electromagnetic interferences, great attention must be paid to the instal-
lation and wiring of digital servo amplifiers. This is particularly true for ground po-
tential connections and shieldings.
EMC can be split into two categories:
■
Immunity to interference (interferences from external sources)
■
Emitted interference (interferences emitted from the devices)
Root cause for emitting interferences
The output stage of the servo amplifier features a high-speed semiconductor
switch triggered by pulse-width modulation. This is necessary to be able to gener-
ate a variable current and a variable frequency for motor control. The high clock
rate and the steep voltage rise caused by the switching output stage result in un-
avoidable emitted interferences.
Emitted interferences strongly depend on the following factors:
■
Installation location
■
Wiring and installation
■
Additional components (line filter, line reactor, ...)
■
Combination of servo amplifiers for a machine or system
EMC requirements
Standards relevant to this device
This servo amplifier is a product which can be used in drive systems of category
C2 (industrial environment) according to EN 61800-3.
EU standards and legislation
At EU level (in all member states of the European Union), standards are imple-
mented into national laws. EMC regulations are governed by EU Directive
2014/30/EC.