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4
SETTING AND ADJUSTMENT OF OUTPUT SIONAL FOR MONlTORlNQ
I
Frequency meter
Frequency meter connected to the inverter can be calibrated,
without using a calibration potentiometer, by operating PU.
(See
page 64 for details of the metho
In function number C-1, p r e s s a or
[?I
to vary the pulse train
cycle. Then average output voltage changes, and the frequency
meter is calibrated. (See diagrams below.)
Notes: 1. When the inverter is shipped, it is set
so
that terminal FM outputs 1440 Hz signal at
'
60 Hz of output frequency.
approximately 5 V at the maximum output frequency. (Without the frequency
indicator.)
2. When measured with a multimeter, voltage across terminals FM and SD indicates
Pulse Signal Output from Terminal FM
Connection of a digital counter allows for digital indication of frequency (Hz) and speed
(mhin). (Not actual speed.)
d
0.41 msec
(fixed)
Approx.
8
V
f
Variable by parameter
C-1
L
60
Hz
64
Hz
360
Hr
(Max. pulse rate :
1536
cyclelsec.)
initial setting)
-96-
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