Mitsubishi Electric FR-V500 Series Instruction Manual page 56

(4) Set the gain speed in Pr. 903 and display the analog voltage value across terminals 2-5 in %.
(To change to 1000r/min)
Currently set gain speed
FR-DU04
-1 CONTROL PANEL
Hz/r
A
V
MON EXT PU
REV FWD
• When not adjusting the gain voltage → To (5)-1
• When adjusting any point by application of voltage → To (5)-2
• When adjusting any point without application of voltage → To (5)-3
(5)-1 Method to adjust only the gain speed and not to adjust the voltage
Analog voltage value
(%) across terminals 2-5
FR-DU04
-1 CONTROL PANEL
MON EXT
REV
(5)-2 Method to adjust any point by application of voltage to across terminals 2-5 (e.g. applied from external potentiometer)
Analog voltage value
(%) across terminals 2-5
FR-DU04
CONTROL PANEL
-1
MON EXT
REV
(5)-3 Method to adjust any point without application of voltage to across terminals 2-5(To change from 80% to 100%)
Analog voltage value
(%) across terminals 2-5
FR-DU04
CONTROL PANEL
-1
MON EXT
REV
(6) Pressing shifts to the next parameter.
SET
(7) Re-set the Pr. 79 "operation mode selection" value according to the operation mode being used.
CAUTION
1. Changing the Pr. 903 or Pr. 905 (gain adjustment) value will not change the Pr. 20 "acceleration/
deceleration reference speed" value. (Refer to page 58 for Pr. 20.) The input of terminal 1 (speed
setting auxiliary input) is added to the speed setting signal.
2. For the operating procedure using the parameter unit (FR-PU04V), refer to the FR-PU04V instruction manual.
3. When applying voltage for calibration, the difference of the set input voltage of bias and gain should
be 5% or more. If the difference is 5% or less, a setting error will occur.
Take care when setting any value other than "0" as the bias speed at 0V. Even if a speed command is
not given, merely turning on the start signal will start the motor at the preset speed.
Gain speed changing
Press for
FR-DU04
-1 CONTROL PANEL
1.5 s
Hz/r
SET
A
V
MON EXT PU
REV FWD
In any of the following methods in (5)-1 to (5)-3, continue the setting
Use to change the
until the analog voltage value flickers.
preset speed.
If you end the setting here, the gain speed changing is not reflected.
Press or
current analog voltage adjustment value.
Hz/r
A
V
PU
FWD
Example: When the analog
Apply a 10V voltage.
(Turn the external potentiometer connected
across terminals 2-5 to the maximum position.)
Press for 1.5 s
Hz/r
A
V
PU
FWD
Press or once to
display the current analog
voltage adjustment value.
Hz/r
A
/
V
PU
FWD
CAUTION
Biases and gains of speed setting terminals
(Pr. 902 to Pr. 905, Pr. 917 to Pr. 920)
Analog voltage value (%) across terminals 2-5
FR-DU04
-1 CONTROL PANEL
Hz/r
A
V
MON EXT PU
REV FWD
once to display the
Press for 1.5 s.
SET
Flicker
voltage adjustment
value is 100% (10V)
SET
Flicker
/
Press to set the gain voltage (%).
"0V = 0(%), 10V = 100(%)"
Press for 1.5 s
SET
Flicker
53
In the maximum position of the
potentiometer, the value is nearly
100(%).
4