Mitsubishi Electric FR-E700 Instruction Manual page 153

Basic settings
5.3.6 Change the frequency (40 Hz) of the maximum value of potentiometer (at 20 mA)
Example
The frequency of the maximum analog current of the potentiometer (at 20 mA) has to be changed
from the initial setting of 50 Hz to 40 Hz. Set 40 Hz in Pr. 126.
Turn the digital dial until P.126 (Pr. 126) appears.
Press the SET key to show the currently set value.
The initial value "50.00" (50.00 Hz) appears.
Turn the digital dial to change the set value to
"40.00" (40.00 Hz).
Press the SET key to set.
Press the MODE key twice to choose monitor/
frequency monitor.
Turn the start switch STF or STR on to allow 20 mA
current to flow.
(Refer to Fig. 5-30, step
Fig. 5-31: Change the frequency of the maximum analog value
NOTES Set the frequency at 4 mA using calibration parameter C5.
As other adjustment methods of frequency setting current gain, there are methods to adjust with
a current flowing in the terminals 4-5 and adjust at any point without a current flowing. (Refer to
section 6.16.3 for the setting method of calibration parameter C7.)
When performing a high speed operation at 120 Hz or more, setting of Pr. 18 "High speed maxi-
mum frequency" is necessary. (Refer to section 6.4.1.)
FR-E700 SC EC/ENE
Operation
to ).
Initial value
50 Hz
Bias C5 (Pr. 904)
0 20
Frequency
0 4
setting signal
C6 (Pr. 904)
Gain Pr. 126
100%
20 mA
C7 (Pr. 905)
External operation
Display
Flicker ... 40 Hz output at 20 mA
input complete!.
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