Rockwell Automation 140G-NTK-E12 LSIG and LSIG-MM Release User Manual
Page 18
DIR 1000587R0002 (L3821)
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3.2 Commissioning
3.2.1 Connections
For the connections provided by user, the recommendations contained in this document must be strictly complied with. This will enable
us to meet all international reference standards and ensure perfect relay operation even under severe environmental and electromagnetic
conditions. Pay special attention to types of cables, connections to earth and recommended maximum distances.
3.2.1.1 Current sensor connection for external neutral conductor
When the current sensor for the external neutral conductor has to be connected to a three-pole circuit breaker, remember to set I
n
N
accordingly. During this procedure, the circuit breaker must be open and preferably isolated.
3.2.2 CS and TC connection check
If the LSIG-MM was installed by user, it is important, before closing the CB, to check the last line on the display when the relay
is turned on for the first time via a battery power-supply unit. No CS and/or TC disconnected messages must appear; if they
do, do not close the circuit-breaker immediately and connect correctly.
3.2.3 Test
Before commissioning, a test can be conducted by means of the specific “Auto test” function which can
be activated on the LSIG-MM. A positive result is shown on the display.
Then a test can be conducted on the whole TC chain, again using a specific function (Trip test). A positive
result is shown by circuit-breaker opening. To run a Trip Test, press the “i Test” button and the “Enter”
button simultaneously.
Check open or closed state of circuit-breaker on the same “CB status” screen, by checking whether CB
is closed and off.
3.2.4 Initial settings
If the LSIG-MM is supplied installed in the circuit-breaker, AB will set all variables referring to the circuit-breaker or specific application correctly
(e.g. type of circuit breaker, Rating Plug size, mains frequency ...).
If the unit is supplied separately, user will set all necessary parameters correctly.
Note that AB defines each possible setting according to the content of the paragraph of default parameters (see par. 3.3.4).
Apart from this, it is absolutely indispensable for user to change the password and carefully define each parameter that can
be changed, before commissioning the LSIG-MM.
3.2.5 Password management
Specify a password? [0***]
To enter “EDIT” mode it is necessary to enter a four-figure numerical password. The values of the password that can be set range from 0000 to
9999. For the default password see par. 3.3.4.
Select the value of the first figure ( ‘0’ to ‘9’ ) by means of the ↑ and ↓ keys and press ↵ to confirm the figure and then proceed to enter the next one.
After entering the fourth figure, check the password you have entered. If the password is correct, “READ” state shifts to “EDIT” state.
If the password is wrong, the message
Wrong password
appears and remains until the ESC key is pressed (or until an interval of 5 seconds has elapsed).
It is also possible to discontinue password entry procedure by pressing the ESC key.
Disabling the Password.
By setting the value of the password to [0000] (on the “Unit Configuration” menu) password prompt is disabled; therefore “READ” can always
shift to “EDIT”.
To enter a new password, select “New Password” from “Settings/System” menu.
3.2.6 Replacing an electronic release
3.2.6.1 Installation
To complete the procedure for installing LSIG-MM, take the following steps:
1.
With the circuit breaker open and preferably isolated, install the protection unit on the circuit breaker
2.
Power the unit ONLY from the battery unit
3.
If there are no other errors, the display will show a
Configuration message (configuration error) and the yellow led glows permanently
(warning)
4.
Enter the unit’s “Settings” menu
5.
Select “Circuit breaker”
6.
Select “Unit installation”
7.
Input the password
8.
Select “Install” and press “ENTER”
9.
When the red led flashes on and off and
Installation message (installation error) is displayed, remove the battery unit
10.
Power the relay from any other source
Check that there are no configuration errors.
1/6
CB open
Auto Test
Trip Test (disabled)
CB status
Test