5 Installation and Commissioning
77
Table 8 Cables recommended for external power supply for the corrector and the modem
5.6.6.1 External Power Supply for the Corrector (Measurement Part)
External power supply can be used with ELCORplus or ELCORplus Indexer. If external power
supply is used for the corrector (i.e. its measurement part), the S3-PWR1 module must be
installed in SLOT 3. Power from an external intrinsically safe PS-E source is fed to the PWR1
terminals. In the event of a power failure, the corrector battery (B-03) performs the power backup
function.
If the corrector is powered from an external power supply, it is necessary for the
device to operate correctly that the batteries (B-03) of the corrector are inserted
and connected in the device.
Fig. 34 Connecting the external power supply of the corrector
5.6.6.2 External Power Supply for the Internal Modem
The external power supply for the modem is ensured by the S4-PWR2 module in conjunction with
Unitronic LiYCY 2 x 1.0
Lappkabel
External power supply of
the convertor and the
modem
Unitronic LiYCY 4 x 1,0
Lappkabel
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