7 RCU Commissioning
The process described in this section assumes the switchgear has already been correctly installed
according to the relevant instructions [6] [7] [3] . This section covers the on-site configuration of an
RCU to couple with the available switchgear overhead using the RCU Connect PC application. The
overall process consists of four steps:
1 The user completes the RCU configuration template form (KMS-3100) and sends this to
Siemens. There are different versions of this form for Fusesaver and CMR installations.
2 Siemens creates two files and returns these to the user.
3 The user loads these files into the RCU Connect PC application.
4 The user chooses configuration settings for each site and loads these into the RCU using
RCU Connect.
Configuration of an RCU is carried out wirelessly using the RCU Connect PC application and a USB
antenna (the same one as used by PC utilities (Siemens Connect/CMRConnect) to communicate
with switchgear). Before this wireless connection is possible, either
o the operator must open the door of the RCU enclosure releasing the door switch.
o the SCADA master must send an “Enable ANT Radio” control.
This enables a 10 minute window during which wireless short range connection can be made to the
RCU with RCU Connect
It is advised to connect the USB antenna to the PC using a short USB extension cable so the antenna
can be placed away from the body of the Notebook computer and pointed towards the RCU.
This section will explain how to do the following:
1 Use RCU Connect to create and maintain templates for various installation scenarios,
including setting up the protocol mapping
2 Use RCU Connect to enter the required information for deployment at a site, and send
this information to the Remote Control Unit
3 Use RCU Connect to check the operation of a Remote Control Unit once configured
Radio communication between the RCU and RCU Connect
running on a PC can be disrupted by metal objects adjacent to
the USB antenna such as the body of the Notebook computer
or an adjacent USB memory stick.
Keep metal objects away from the RCU and USB
antenna.
Do not stand immediately below the RCU as the signals
may be blocked by the metal cabinet.
If the radio connection is lost during configuration, repeat
the process.
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