Mitsubishi Electric FR-E8AXY E KIT Instruction Manual page 48

 Adjustment by only changing the frequency without adjusting the voltage (Example of changing the
gain frequency from 60 Hz to 50 Hz)
Operating procedure
1.
Selecting the parameter
Turn the setting dial or press the UP/DOWN key until "C14" (C14 (Pr.918) Terminal 1 gain frequency (speed)) appears.
Press the SET key to show the present set value. (60.00 Hz)
2.
Changing the maximum frequency
Turn the setting dial or press the UP/DOWN key to change the value to "50.00". (50.00 Hz)
Press the SET key to confirm the setting. "50.00" blinks.
3.
Selecting the mode and the monitor item
Press the MODE key three times to select the monitor mode and to monitor a frequency.
4.
Start
Turn ON the start switch (STF/STR signal), and turn the frequency setting potentiometer clockwise slowly to full.
The motor is operated at 50 Hz.
NOTE
• If the frequency meter (display meter) connected to terminal FM or terminal AM of the standard model does not indicate
exactly 60 Hz, set the calibration parameter C0 or C1. (Refer to the FR-E800 Instruction Manual (Function).)
• If the voltage values at the gain and bias frequencies are too close to each other, an error "Er3" may be indicated.
• Changing C15 (Pr.918) (gain adjustment) will not change Pr.20.
• To set the value to 120 Hz or higher, Pr.18 High speed maximum frequency needs to be 120 Hz or higher. (Refer to the
FR-E800 Instruction Manual (Function).)
• Use the calibration parameter C12 (Pr.917) to set the bias frequency.
• For operation outline of the parameter unit (FR-PU07), refer to the FR-PU07 Instruction Manual.
CAUTION
• When setting a value other than "0" as the bias frequency at 0 V, note that simply turning ON the start signal will start the motor at the preset
frequency even if a speed command is not given.
CONTROL CIRCUIT INPUT SIGNAL
3
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