Flowserve LRR1-40 TDS Control Unit Manual do Utilizador descarregar pdf (Página 30)

System Faults – continued –

Action against high frequency interference

Due to the digital signal evaluation we recommend the following measures for

interference suppression in installations susceptible to electromagnetic interference

(e.g. interference caused by phase asynchronous switching operations):

H. F. Interference suppression of voltage supply

Install ferrite ring just before the control equipment. Loop supply lines L and N as often

as possible (5-10 times) through the ring. Several control units that are located next to

each other can also be fed by this supply line.

Fig. 7

Ferrite ring

230V

Control unit

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Flowserve LRR1-40 TDS Control Unit Manual do Utilizador Página 30