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Safety information
2.7 Interference immunity
The necessary ESD protective measures for electrostatic sensitive devices are illustrated once
again in the following drawings:
a = conductive floor surfaceb = ESD table
d = ESD overall
2.7
Interference immunity
By selecting suitable signal cables and evaluation units, ensure that the interference immunity
of the machine is not diminished.
2.8
Interference voltages when operating the converter
Interference voltages when operating the converter
When a converter is in operation, the emitted interference varies in strength depending on the
converter (manufacturer, type, interference suppression measures undertaken). On machines
with integrated sensors (e.g. PTC thermistors), interference voltages caused by the converter
may occur on the sensor lead. This can cause faults which can result in eventual or immediate
death, serious injury or material damage.
● Comply with the EMC information provided by the manufacturer of the converter. This is
● You must put appropriate EMC measures in place.
2.9
Electromagnetic fields when operating electrical power engineering
installations
Electrical power equipment generate electromagnetic 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.
● Protect the personnel working in the plant by taking appropriate measures, such as erecting
● Observe the nationally applicable health and safety regulations.
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how you prevent the limit values stipulated by IEC/EN 61000-6-3 for the drive system
(consisting of the machine and converter) from being exceeded.
identifying markings, safety barriers and warning signs and giving safety talks.
e = ESD wristband
SIMOTICS T-1FW4 Heavy Duty 1FW4407-1KM81-1BC0-Z
c = ESD shoes
f = cabinet ground connection
Operating Instructions 11/2018
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