Siemens 9700, Руководство по установке, Страница: 39 / 45

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Entering Your Password
You must enter the user password before you can change any settings. The
password is factory set at ‘zero’ (0).
The first time you attempt to change a setup register’s value, you will be
presented with the keypad screen where you enter your password.
In the keypad screen, the left-hand keypad graphic represents the MGT’s
actual keypad, and the keypad graphic on the right shows the current value
assigned to each keypad button. The left and right arrow buttons on the
MGT allow you to scroll through different key assignments until you find the
one that contains the value you want to enter. In the example keypad
screen shown above, pressing ‘0’ will enter ‘K’.
Using the MGT’s left or right arrow buttons, scroll through the different
keypad configurations until you find the one with the zero character (0).
Using the keypad, enter 0, then press the MGT’s
ENTER
button. Note that the
value you are entering appears on the MGT screen, so you can verify that
you have entered the correct password before you hit
ENTER
.
PT/CT Settings
Press the button labeled PT/CT to set basic operating parameters. The
following setup registers and their current settings are displayed:
Setup Register Factory Default Function
Volts Mode 4W-WYE The power system’s configuration – WYE, DELTA, Single, etc
PT Prim 120/277/347 * The Potential Transformer’s primary winding rating for V1, V2 and V3
PT Sec 120/277/347 * The Potential Transformer’s secondary winding rating for V1, V2 and V3
CT Prim 5000 The Current Transformer’s primary winding rating for I1, I2 and I3
CT Sec 5 The Current Transformer’s secondary winding rating for I1, I2 and I3
I4 CT Prim 5000 The Current Transformer’s primary winding rating for I4
I4 CT Sec 5 The Current Transformer’s secondary winding rating for I4
NomVolts 0 ** The nominal power system voltage (used for power quality calculations)
Phase Lbls ABC The phase label format assigned to the outputs (ABC, RST, XYZ, RYB or 123)
* PT Prim and PT Sec are set to 120, 277 or 347 depending on the voltage input ordering option
specified. Both
PT Prim and the PT Sec are factory set to the same value.
** NomVolts is factory-set to zero, disabling all Power Quality functions of the meter. Set it to
your nominal system voltage to enable Power Quality functions (i.e. Transient and Sag/Swell
detection).
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The MGT’s user password
is factory set at 0. Scroll
through the keypad
assignments until 0 appears
on both left and right
keypad graphics.
The left side represents
the actual buttons on
the MGT keypad.
The right side shows what will
be entered when the
corresponding keypad button
is pressed.