2.7 Interference immunity
By selecting suitable signal cables and evaluation units, companies operating complete plants
and systems must ensure that the interference immunity of the machine is not diminished.
2.8 Influence on the line power supply through a strongly irregular torque
A strongly irregular torque, for example with the drive of a reciprocating motor, forces a non-
sinusoidal motor current. The emerging harmonics can have an impermissible influence on
the line power supply via the connection lines.
2.9 Electromagnetic fields when operating electrical power engineering
installations
Interference to electronic devices caused by electrical power equipment
Electrical power equipment generate electric fields during operation. Potentially lethal
malfunctions can occur in medical implants, e.g. pacemakers, in the vicinity of electrical power
equipment. Data may be lost on magnetic or electronic data carriers.
● It is forbidden for people with pacemakers to enter the vicinity of the machine.
● Protect the personnel working in the plant by taking appropriate measures, such as erecting
identifying markings, safety barriers and warning signs and giving safety talks.
● Observe the nationally applicable health and safety regulations.
● Do not carry any magnetic or electronic data media.
Safety information
2.7 Interference immunity
SIMOTICS HV C 1NA14544WA600AG0-Z
Operating Instructions 06/2018 17
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