
12163230-216-229-B1
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© 2007 Schneider Electric. All Rights Reserved.
Commissioning
General Examination and
Preliminary Actions
E
n
Checks Performed Prior to Energizing
Check the following for correct status:
b identification of Sepam™ and accessories
determined by the contractor
b proper grounding of Sepam™ through terminal
13 of the 20-pin connector (see page 20)
and the functional grounding terminal located on
the back of the Sepam™ unit
b
auxiliary voltage properly connected
v
terminal 1: positive polarity
v
terminal 2: negative polarity
b presence of the detection of plugged connectors
(DPC) bridge on terminals 19-20 of the 20-pin
connector
b presence of a residual current measurement
zero sequence CT and/or additional modules
connected to Sepam™ when applicable
b presence of test terminal boxes upstream from
the current inputs and voltage inputs
b conformity of connections between Sepam™
terminals and the test terminal boxes
You can use the supplied diagrams and Bills of Material
(BOMs) as additional sources to verify the information.
Connections
Before you apply power to the equipment:
b ensure the connections are tightened to 6.2 to
8.8 in/lb
b the Sepam™ connectors are correctly plugged in
and locked
Energizing
Turn on the auxiliary power supply and monitor
Sepam’s initialization sequence:
b green ON and red indicators ON
b red indicator OFF
b "watchdog" contact pick-up
b the first screen displayed is the phase current
measurement screen
This initialization sequence lasts approximately six
seconds.
Implementing the SFT2841 Software
1 Turn on the PC and use local login procedures as
necessary.
2 Connect the PC RS232 serial port to the
communication port on the front panel of Sepam™
using the CCA783 cord.
3 Start the SFT2841 software by clicking on the
related icon.
4 Connect to the Sepam™ you want to check.
Identifying Sepam™ Components
Enter the following items on the test sheet:
b the Sepam™ serial number found on the label on
the right side plate of the base unit
b the references that define the type of application
indicated on the adhesive label on the Sepam™
cartridge
b the Sepam™ type and software version using
the SFT2841 software, Sepam™ Diagnosis
screen
Determining Parameter and Protection Settings
The design department in charge of the application determines all Sepam™
parameter and protection settings . These settings are approved by the customer.
It is presumed the installation protection system study has been carried out with all
due diligence, and/or consolidated by a network coordination study.
All Sepam™ parameter and protection settings should be available at the time of
commissioning:
b in paper file format (with the SFT2841 software, the parameter and protection
settings file for a Sepam™ may be printed directly)
b and, when applicable, in the format of a file to be downloaded into Sepam™
using the SFT2841 software
Settings Check
There may be an occasion when Sepam™ parameter and protection settings have
not been entered or downloaded during commissioning testing. Perform the
following steps to validate the settings entered are those determined during the
installation protection system study:
1 Go through all the parameter and protection setting screens in the SFT2841
software, in the order proposed in guided mode.
2 For each screen, compare the values entered in the Sepam™ with the values
recorded in the parameter and protection setting file.
3 Correct any parameter and protection settings that have not been entered
correctly, proceeding as indicated in the SFT2841 section of the Use chapter of
this manual.
Note: This check does not confirm the relevance of the parameter and protection settings.
Conclusion
Once the checks are complete and conclusive for that phase, the parameter and
protection settings are considered final and should not be changed any further.
To be conclusive, you must perform the following tests with these parameter and
protection settings. Temporary modifications of any values to facilitate a test is not
allowed.
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