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Frequency setting by analog input (terminal 2, 4)
4
PARAMETERS
(c) Adjusting only the frequency without adjusting the gain voltage (current).
(When changing the gain frequency from 60Hz to 50Hz)
Operation Display
1.
Turn until (Pr. 125) or
(Pr. 126) appears
Terminal 2 input
is selected
or
Terminal 4 input is
selected
2. Press to show the present set value.
(60.00Hz)
3. Turn to change the set value to
" ". (50.00Hz)
4. Press to set.
Terminal 2 input is
selected
Terminal 4 input is
selected
Flicker...Parameter setting complete!!
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 83)
Make the bias frequency setting using the calibration parameter C2 (Pr. 902) or C5 (Pr. 904). (Refer to page 154)
CAUTION
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 Refer to page 96
Pr. 73 Analog input selection, Pr. 267 Terminal 4 input selection Refer to page 150
Pr. 79 Operation mode selection Refer to page 165
Bias and gain of built-in frequency setting potentiometer Refer to page 244