Installation and commissioning
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D000011142 en k – E65C CU-B1, B2, B4 – User Manual
© Gyr
5.
Insert the communication unit carefully at the place provided in the
meter. Ensure correct fitting of the connectors.
Fig. 16 Fitting communication unit CU-Bx in meter
6.
Close and seal the front door.
5.4
Connecting the communication unit CU-Bx
Connection conductors without supply during installation
The connecting conductors must not be connected to the supply during
installation of the communication unit CU-Bx. Contact with live parts is
dangerous to life. Remove the corresponding fuses and keep these in a
safe place until completing the work, so that other persons cannot replace
them unnoticed.
Open the voltage connections in the test terminal block (e.g. TVS14). For
this purpose release the screw of the relevant jumper with an insulated
screwdriver, move the jumper away from the terminal on the voltage trans-
former side and then retighten the screw.
If no test terminal block is present, the primary voltage must be interrupted,
i.e. the system switched off.
+
-
+
-
23
20
21
22
S01
S02
DC
DC
72 620 548-2
Gyr Dialog CU-B1/+
CON
Rx
Tx