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Frequency/torque setting by analog
input (terminal 1, 2, 4)
(c) Method to adjust only the frequency without adjustment of a gain voltage (current).
(When changing the gain frequency from 60Hz to 50Hz)
Operation
1.
(Pr. 126) appears.
2.
Press
to show the present 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 and 5 (across 4 and 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. The input of terminal 1 (frequency
setting auxiliary input) is added to the frequency setting signal.
For the operating procedure using the parameter unit (FR-PU04/FR-PU07), refer to the FR-PU04/FR-PU07 instruction manual.
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 159)
Make the bias frequency setting using calibration parameter C2 (Pr. 902) or C5 (Pr. 904). (Refer to page 301)
Be cautious when setting any value other than "0" as the bias frequency at 0V (0mA). Even if a speed command
is not given, simply 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
304
Pr. 125) or
Flicker...Parameter setting complete!!
CAUTION
Refer to page 175
Refer to page 291
Refer to page 321
Display
or
Terminal 2 input
Terminal 4 input
Terminal 2 input
Terminal 4 input
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