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Verifying safe isolation from supply
16.3 LRM system overview
Indication on LRM-ST
126
Fig. 211: LRM system at the panel
LRM-ST indication
Indication flashes
Indication lights up
Indication does not light
up or flash
NOTICE
Device system LRM
Before verifying safe isolation from supply with the LRM device system, do
absolutely check proper functioning of the LRM-ST voltage indicator.
Fig. 212: LRM-ST voltage indicator
(1)
(2)
(3)
(4)
Meaning
Phase not isolated from supply
Phase not isolated from supply
Phase isolated from supply
NXAIR M
Documentation to
repeat test of interface
condition
Cover of test socket for L1,
removed
LRM-ST, plugged in for L1
Covers of tests sockets for L2
and L3, fitted
139-2021.9 / 07
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