IM 253401-01E
10-13
10
Using External In / Output
Setting the harmonic order (corresponds to column C in the procedure)
Setting range: 01 to 50
Initial value: refer to the following.
The maximum order of harmonic analysis data varies by the fundamental frequency. Therefore,
there might be cases where no analysis data are present up to the 50th order (and the display
will show bars). In such a case, even if you set an harmonic order, determination will not be
carried out. Therefore, before setting, verify the maximum order (chapter 15) and the
fundamental frequency of the object of measurement.
• Setting the limit value
No element setting is available on the WT110.
Setting range
: 0.000 to
±
9999
Initial setting
:
ch1 : V (type)
: 1 (element) : 600.0 (value) : E+0 (exponent) [ 600V voltage limit of
element 1 for channel 1]
ch2 : A (type)
: 1 (element) : 20.00 (value) : E+0 (exponent) [ 20.00A current limit
of element 1 for channel 2]
ch3 : P (type)
: 1 (element) : 1.200 (value) : E+3 (exponent) [ 1.2kW active power
limit of element 1 for channel 3]
ch4 : PF (type)
: 1 (element) : 1.000 (value) : E+0 (exponent) [ Power factor 1 limit
of element 1 for channel 4]
• Setting the exponent
The following selections are available. The initial value is as described above.
E–3 (10
–3
), E+0 (10
0
), E+3 (10
3
), E+6 (10
6
)
Note
• When you use limit values based on harmonic analysis data, make sure to set the harmonic analysis
function to ON (page 8-5) before you set the comparator function ON (page 10-16).
• Although the four relays used in case of normal measurement and in case of harmonic analysis are the
same, the contents of the settings will be kept for both seperately. For example, even after setting a limit
for ch1 in case of harmonic analysis after previously having set a limit for ch1 in case of normal
measurement, will result in keeping both values.
• The determination method does not change as a result of – (minus) limit values. For example, if a limit
of –1 is set, the relay will not be activated when the input signal value reaches –2 coming from an even
lower value, but will be activated when the input signal value becomes 0.
• Make sure to set the polarity of the phase angle as well, + for phase lead (and can be ignored), – for
phase lag.
10.6 Setting the Comparator Limit Values (optional)
