17-10
IM DL850E-01EN
• Torque (Torque)
Select the real time math channel set to math “Torque.”
• Coefficient (K)
Set scaling coefficient K.
Range: –9.9999E+30 to +9.9999E+30. The default value is 1.0000.
• Pm Type (Pm Type)
Select the type of rotating speed.
RotationAngle: Rotation angle (rad/s)
Speed: Rotating speed
When the Pm Type Is RotationAngle
• Rotation Angle (Rotation Angle
)
Select the real time math channel set to math “Rotary Angle.”
When the Pm Type Is Speed
• Speed
Select the input channel of the module measuring the number of rotations.
• Scaling (Scaling)
Select the unit that is used on the vertical scale.
rps: The unit is set to revolutions per second.
rpm: The unit is set to revolutions per minute.
Harmonic Analysis (Harmonics)
Harmonics refer to sine waves whose frequency is an integer multiple (2 and higher) of the fundamental wave
except for the fundamental wave itself.
When the fundamental is mixed with harmonics, waveform distortion results.
The DL850E/DL850EV analyzes the harmonics of rms values (voltage and current) and active power.
The DL850E/DL850EV analyzes harmonic orders 1 to 40 for rms values and 1 to 35 for active power.
This is a feature available on the /G5 option.
• Harmonic analysis can be performed when any of the following modules is installed in a slot other than slot 8.
701250 (HS10M12), 701251 (HS1M16), 701255 (NONISO_10M12), 701267 (HV (with RMS)),
720210 (HS100M12), 701261 (UNIVERSAL), 701262 (UNIVERSAL (AAF)), 701265 (TEMP/HPV),
701275 (ACCL/VOLT)
• Channels that can be used for harmonic analysis are CH15 and CH16. Harmonic analysis results are output
to the subchannels of CH15 and CH16.
The number of calculations performed in one analysis is equal to the total number of subchannels of CH15
and CH16.
• The maximum number of harmonic analysis parameters that can be calculated is as follows.
Harmonic analysis of rms values: 123 parameters
Harmonic analysis of active power: 121 parameters
• The harmonic analysis result waveform can be used as a trigger source, but it cannot be used as a real time
math source.
Measurement Functions and Source Channels
For the terminology definitions, see “
Analysis section.
17 Power Math