Mitsubishi Electric fr-e700 series, Instruction Manual

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Basic settings External operation
FR-E700 SC EC/ENE 5 - 41
5.3.6 Change the frequency (40 Hz) of the maximum value of potentiometer (at 20 mA)
쑶
Example
쑴
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.
I001783E
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.)
햲
Turn the digital dial until P.126 (Pr. 126) appears.
햳
Press the SET key to show the currently set value.
The initial value "50.00" (50.00 Hz) appears.
햴
Turn the digital dial to change the set value to
"40.00" (40.00 Hz).
햵
Press the SET key to set.
햶
Press the MODE key twice to choose monitor/
frequency monitor.
햷
Turn the start switch STF or STR on to allow 20 mA
current to flow.
(Refer to Fig. 5-30, step
햳
to
햶
).
Operation Display
Flicker ... 40 Hz output at 20 mA
input complete!.
Gain Pr. 126
Initial value
Bias C5 (Pr. 904)
50 Hz
Output fr
equenc
y [H
z]
Frequency
setting signal
0
0
C6 (Pr. 904) 100%
20 mA
C7 (Pr. 905) 20
4