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CARLO GAVAZZI
A u t o m a t i o n C o m p o n e n t s
Measuring
mode
PAY ATTENTION
!
Join or divide the
modules ONLY
when the WM30
is NOT power
supplied.
NOTE
10 CHANGE PAS: this function allows the user to modify the PASS value
with a new value (from 0 to 9999).
20 BACKLIGHT: backlight time from 0 (always on) to 255 minutes.
30 MODULES: the WM30 96 supports either automatic (A) or manual (M)
acknowledgment of the installed modules depending on the kind of
module.
40 APPLICAT.: this function which enables a simple, quick, clear and
immediate visualization of the instrument measurements, making available
only specific variables (page 4/5) depending on the application of the
instrument. 50 SYSTEM: this function allows the user to select the type of
electrical system. 60 CT RATIO: this function allows the user to select the
value of the CT ratio (primary/secondary ratio of the current transformer
being used). Example: if the CT primary (current transformer) has a current
of 300A and the secondary a current of 5A, the CT ratio corresponds to 60
(obtained using the following calculation: 300/5.
70 PT RATIO: this function allows you to select the value of the VT-PT ratio
(primary/secondary ratio of the voltage transformer being used). Example:
P P R R O O G G R R A A M M M M I I N N G G W
W M M 3 3 0 0 - - 9 9 6 6
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if the primary of the connected VT (voltage transformer/potential trans-
former) is 20kV and the secondary is 100V, then the VT-PT ratio corre-
sponds to 200 (obtained carrying out the following calculation:
20000/100).
80 DMD: This function allows the user to select the calculation method of
the DMD/AVG value of the selected variable. 81 TYPE: select the type of
calculation mode to be used for the DMD/AVG calculation FIXED: if, for
example, a time interval of 15 minutes has been selected, the instrument
will calculate the AVG/DMD value of the measured variable and updates
its value every 15 minutes, after that resets and starts a new calculation.
SLIDE: if for example a time interval of 15 minutes has been selected, the
instrument calculates the AVG/DMD value and updates its value at the
beginning after the first 15 values and then after every minute, thus gener-
ating a window whose width is of 15 minutes and that moves forward
every minute. 82 TIME: select the time interval for the DMD/AVG calcula-
tion 83 SYNC: select the synchronization mode, that is the method that
controls the calculation method of the average/demand according to the
Some specific menus display only if the relevant
modules are installed.
* Self-recognize.
See details on the next
page.
selected time.
90 SET POWER: This menu allows you to set a power value (installed power)
that, in the measuring phase, will represent 100% of the graph indicator.
100 HOME PAGE: This function allows the user to select the variables to
be displayed on first page (home page). 101 TYPE: A, you can select the
variable for each row. B, you can select a preset combination of variables
(see relevant chapter to next page). 106 PAGE: select a preset series of
variables (see relevant chapter to next page).
110 FILTER: with the digital filter it's possible to stabilize the measure-
ments which are too instable when displaying the relevant values. 111 FIL-
TER S: set the operating range (span) of the digital filter. The value is
expressed as a % (filter to 0.0 means filter excluded). 112 FILTER CO: set
the filtering coefficient of the instantaneous measures. By increasing the
value, also the stability and the settling time of the measures are
increased.
Some specific menus display only if the relevant modules are installed
8
Key-pad
Push for at
least 2 s
.
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