Hioki 3390 - Page 96

4.8 Viewing Motor Measurement Values (With Hioki 9791 or 9793 installed)
88
When [CHB input] is set to [Pulses], make these five settings to suit the rotation signal: [CHB unit],
[Max frequency], [No. of pulses], [Motor poles], and [CHZ].
When [Pulses] is selected
CHB unit Always select [r/min] when measuring motor power (Pm).
Hz, r/min
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 frequency Determine the full-scale measurement value for CH B.
(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.
• When using pulse synchronization with an electrical angle (motor input voltage, or the same
frequency as the current frequency), set the number of motor poles at CH B input to 2.
CHZ Make CH Z settings.
Enable (set to ON) to use the original rotation angle (usually called the Z phase) signal
to reset pulse division to zero.
ON Use CH Z.
OFF Ignore CH Z (no connection to CH Z jack)