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Safety Instructions
If personnel protection is required during installation of the system the frequency
RCD
inverters must be protected according to EN 50178 (VDE 0160):
(FI-Protective
Switch)
– 3-phase inverters by RCMA's with separation (used privileged) or RCD's type
B (all-current sensitive FI's)
The tripping current should be 300mA or more, in order to avoid a premature
triggering of the inverter by discharge currents (about 200mA).
Dependent on the load, the length of the motor cable and the use of a radio
interference filter, substantially higher leakage current can occur.
The connection instructions from the manufacturer and the valid local reqirements
must be observed.
Dependent on the available mains form (TN, IT, TT) further protective measures
are necessary in accordance with VDE Part 410 (Part 4; Chapter 41). For example,
with TN-mains this protection is made with overcurrent protective devices. With
IT-mains it is insulation monitoring with a pulse-code measuring method. A
protective separation can be used with all mains forms as long as the required
power and cable lengths permit this.
Operating Instuctions
Before starting, all respective enclosures must be secured again, as well as the
terminals and screws must be checked to see that they are securely fixed.
GB - 7
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