Application On Ships And Maritime Systems - ABB RLM01 Inbetriebnahmeanweisungen

Commissioning

3.6 Application on ships and maritime systems

RLM01 is certified for applications on ships and maritime systems by the Germanic
Lloyd (GL). To meet the increased requirements regarding EMC and overvoltage,
RLM01 must have one or two "24 VDC power supply filters (surge)" depending on
the supply (single / redundant). The supply of several RLM01 behind one filter is not
admissible. The max. length of the lines between filter and RLM01 must not exceed
1 m. Possibly needed fuse elements have to be arranged before the filter. The elec-
trical connection to ground potential is effected via the module attachment as with
RLM01. The following example shows the interconnection in case of a redundant
supply of RLM01. For a single supply of RLM01, the L2+ terminal has to be bridged
with the second L1+ terminal.
Fig.: RLM01 with 24 VDC power supply filter
3BDD011600R05 15