2.1.10 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 how
you prevent limit values according to IEC/EN61000-6-2 .... IEC/EN61000-6-4 for the drive
system (consisting of the machine and converter) from being exceeded.
• You must put appropriate EMC measures in place.
2.1.11 Special designs and construction versions
Before carry out any work on the machine, determine the machine version.
If there are any deviations or uncertainty, contact the manufacturer, specifying the type
designation and serial number (see the rating plate), or contact the ServiceCenter (Page12).
2.1.12 Certicate with special conditions
The certicate with special conditions is provided under the Quality documents press
(Page171). To do this, under eld "Enter search term", enter the certicate number and select
the appropriate document from the documents that are listed.
The machine has an "X" marking (for EACEx in the Ex marking, for ATEX, IECEx and UKCA, in
the certicate number). To ensure safe operation in potentially explosive zones, the special
conditions of the certicate specied on the nameplate must be strictly complied with:
EPS 18 ATEX 1 202 X, EPS 18 ATEX 1 203 X, IECEx EPS 18.0104X, RU C-
DE.AA81.B.00156-19, EPS 21 UKEX 1 250 X, EPS 21 UKEX 1 255 X:
• It is not permissible to operate groups of motors connected to a converter. The rated
converter current may correspond as a maximum to twice the rated motor current. It is only
permissible to operate the motor with a SINAMICS converter or a converter that is
comparable. When commissioning the system, with reference to the rated voltage (UN) of
the winding insulation, carefully ensure that no converter-related overvoltages with a peak
value exceeding (1.1 * √2 * UN) occur at the terminals of the electric motor.
• If anti-condensation heating is used, then an interlock circuit must ensure that the anti-
condensation heating can only be operated when the motor is shut down. Once the motor
has been shut down, the anti-condensation heating may only be switched on after a
specied wait time has elapsed.
• The information provided in the Operating Instructions must be strictly complied with.
Safety information
2.1General safety instructions
1MB..1/2/3/4 - shaft heights 63 ... 355
22 Operating Instructions, 11/2023, A5E52779900A
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