
NORMA 6003/NORMA 6003+/
NORMA 6004/NORMA 6004+
User Manual
22
Note
The 10 kHz anti-aliasing filter is in the measurement channel. The anti-aliasing filter is
necessary to analyze Fast Fourier Transform (FFT) data correctly and can be used to
ensure that the
measurement bandwidth is much less than 1⁄2 sample rate to avoid
signal aliasing.
650 Hz low-pass filtering is implemented by a digital filter that helps distinguish the
synthesis frequency and carrier signals of the variable frequency system. Turn on this
filter to easily observe the synthesis frequency of the frequency conversion system.
If measuring a 3-phase system, Fluke recommends that the line filter settings for each
channel in the 3-phase system should be consistent.
The filter is off by default.
Motor Speed / Torque Channel Configuration
1. From the Main screen of any view mode select
A
(
Configure
) >
A
(
Range
) >
E
(
Motor
).
2. The Configuration interface of Motor Speed / Torque is as shown in
Table 9. Motor Speed / Torque Channel Configuration
Item
Description
Speed
Mode
Speed signal mode options:
-
10V
(default):
Use for speed sensor for analog voltage output. If the
sensor uses current, frequency or other analog output, it must be
converted to voltage before input.
-
A:
For encoders with single pulse, only the speed value is measured
and recorded, the direction of rotation is not measured and recorded.
-
AB:
For encoders with AB double-pulse, both speed value and direction
are measured and recorded.
-
ABZ:
For ABZ absolute encoder, both speed value and direction are
measured and recorded.
Ratio
Speed sensor ratio.
When “
Mode
” is set to “
10V
”, the ratio is in V/rpm, which indicates that how
much voltage (V) it is related to the motor speed (rpm). The formula for the
Analyzer to calculate the actual speed is as follows:
Speed = Voltage/ Ratio
When “
Mode
” is set to another option, the unit of the ratio is the number of
pulses per revolution (PPR). The formula for the Analyzer to calculate the
actual speed is as follows:
Speed (rpm) = Pulses per Minute / Ratio
Summary of Contents for NORMA 6003
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