Hioki PW3390 - Page 109

4.8 Viewing Motor Measurement Values (Model PW3390-03 only)
101
4
Chapter 4 Viewing Measurement Values
The measurement range when CH B units are set to Hz is 0.5 Hz to 5 kHz.
Measurement values are calculated as
When the pulse signal input frequency is higher than the measurement range, set the
appropriate pulse count.
No. of Poles × Pulse Input Frequency
2 × Pulse Count Setting
Max fre-
quency
Determine the full-scale measurement value for CH B.
For the digits displayed for rotation and motor power, the value calculated under the
frequency set here is determined as full-scale.
Select a higher value closest to the maximum value of the voltage frequency inputted
in the motor.
E.g., when a maximum voltage of 133 Hz inputs in the motor, select 500 Hz.
(When CH B is set for D/A Output, this setting is the full-scale value.)
100 Hz, 500 Hz, 1 kHz, 5 kHz
Pulse Count Set the number of pulses per mechanical rotation, from 1 to 60,000.
Available setting values are multiples of half the number of motor poles.
(For a incremental type rotary encoder that provides 1000 pulses per rotation, set to 1000.)
+1/2 the number of motor poles,
-1/2 the number of motor poles
Increment or decrement by 1/2 the number
of motor poles.
+1/2 × 10 times the number of motor poles,
-1/2
× 10 times the number of motor poles
Increment or decrement by 1/2 × 10 times
the number of motor poles.
+1/2 × 100 times the number of motor poles,
-1/2
× 100 times the number of motor poles
Increment or decrement by 1/2 × 100 times
the number of motor poles.
No. of Motor
Poles
Set the number of motor poles as an even number between 2 and 98.
(The slip calculation and the rotation signal input as the frequency corresponding to
the mechanical rotation angle are converted to the frequency corresponding to the
electrical angle.)
+2, -2 Increment or decrement by 2.
+10, -10 Increment or decrement by 10.
The motor pole setting is enabled by pressing (Set). Be sure to press
(Set) after changing the setting.
CH Z Input Select the signal to input in CH Z
OFF Ignore CH Z (no connection to CH Z jack).
Z Phase Select this when inputting the original signal (generally known as Z
Phase) pulse of the rotating angle.
Used in "4.8.2 Measuring Motor Electrical Angle" and zero-clear the
pulse counts of the CHB with this pulse when using multiple pulses of the
CHB.
B Phase Select this when inputting the B Phase pulse of the rotary encoder. Used
in "4.8.3 Detecting the Motor Rotation Direction"
Phase Zero
Adjustment
Set the phase zero adjustment correction value as desired. To set the correction value
based on signal input, use the phase zero adjustment function on the Measurement
screen ( + ).
See "Setting the phase zero adjustment correction value manually" (p. 104)