Mitsubishi Electric FR-E720-0.1 K Instruction Manual page 180

Frequency setting by analog input (terminal 2, 4)
(c) Adjusting only the frequency without adjusting the gain voltage (current).
(When changing the gain frequency from 60Hz to 50Hz)
Operation
1.
Turn until
(Pr. 126) appears
2.
Press to show the currently set value.
(60.00Hz)
3.
Turn to change the set value to
" ". (50.00Hz)
4.
Press to set.
5.
Mode/monitor check
Press twice to choose the monitor/
frequency monitor.
6.
Apply a voltage across the inverter terminals 2-
5 (across 4-5) and turn on the start command
(STF, STR).
Operation starts at 50Hz.
REMARKS
Changing C4 (Pr. 903) or C7 (Pr. 905) (gain adjustment) value will not change the Pr. 20 value.
For operation from the parameter unit (FR-PU04/FR-PU07), refer to the instruction manual of the FR-PU04/FR-PU07.
When setting the value to 120Hz or more, it is necessary to set Pr. 18 High speed maximum frequency to 120Hz or more. (Refer to
page 92)
Make the bias frequency setting using the calibration parameter C2 (Pr. 902) or C5 (Pr. 904). (Refer to page 175)
Refer to page 267 to use the FR-E500 series operation panel (PA02).
Be cautious when setting any value other than "0" as the bias frequency at 0V (0mA). Even if a speed
command is not given, merely turning on the start signal will start the motor at the preset frequency.
Parameters referred to
Pr. 20 Acceleration/deceleration reference frequency
Pr. 73 Analog input selection, Pr. 267 Terminal 4 input selection
Pr. 79 Operation mode selection
Bias and gain of built-in frequency setting potentiometer
178
(Pr. 125) or
Flicker...Parameter setting complete!!
Refer to page 186
Display
or
Terminal 2 input
is selected
CAUTION
Refer to page 105
Refer to page 171
Refer to page 267
Terminal 4 input is
selected
Terminal 2 input is Terminal 4 input is
selected selected