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● For inverters with rated input currents> 125 A referred to LO, use a type B MRCD (for
example, from the Bender company).
An MRCD comprises an RCM (differential current monitoring device), a measuring current
transducer and a circuit breaker with additional undervoltage release, listed in the Technical
data. An example of an MRCD design is provided in the following diagram.
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Figure 5-1
MRCD
● A dedicated RCD is used for every inverter.
● The motor cables are shorter than 50 m (164 ft) shielded, or 100 m (328 ft) unshielded.
Additional information about motor cables
Length of the motor cable (Page 59)
Further protection and monitoring equipment (
https://support.industry.siemens.com/cs/ww/en/
Connecting-up
Power Module PM240-2
Hardware Installation Manual, 08/2017, A5E33294624B AG
49
Содержание SINAMICS G12
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Страница 8: ...Table of contents Power Module PM240 2 8 Hardware Installation Manual 08 2017 A5E33294624B AG ...
Страница 10: ...Changes in this manual Power Module PM240 2 10 Hardware Installation Manual 08 2017 A5E33294624B AG ...
Страница 118: ...Spare parts Power Module PM240 2 118 Hardware Installation Manual 08 2017 A5E33294624B AG ...
Страница 156: ...Appendix A 4 Abbreviations Power Module PM240 2 156 Hardware Installation Manual 08 2017 A5E33294624B AG ...
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