MITSUBISHI ELECTRIC FR-S520 - Manual (Page 85)

76
Changing example Changing the calibration parameter C4 "frequency setting
voltage gain" value
POINT
The calibration parameter C4 is an extended function parameter. Pr. 30 must be set to "1".
(2) Adjusting a deviation of the highest frequency from the Pr. 38
(Pr. 39) setting.
(2)-1) Making adjustment with a voltage applied directly across
terminals 2-5 (with a current flowing across terminals 4-5)
Confirm the RUN indication and operation
mode indication.
The inverter must be at a stop.
The inverter must be in the PU operation mode.
(Press the key) 1.
4.
5.
SET
2.
MODE
MODE
The parameter
number read
previously
appears.
6. Press the key to show the analog
voltage analog-to-digital conversion value (%).
SET
SET
7. Apply a 5V voltage.
(Turn the external potentiometer
connected to across terminals 2-5 to
the maximum (any position).)
1
2
3
4 5 6
7
8
9
10
Analog voltage
analog-to-digital
conversion value
(%) across
terminals 2-5
*
Press the key to choose the parameter
setting mode.
RUN
PU
EXT
*The value is nearly 100 (%) in the
maximum position of the potentiometer.
3. Turn the setting dial to show " ".
Pr. 30 must be set to "1".
(For the Pr. 30 setting method, refer to
the instruction manual (basic).)
PU
EXT
Turn the setting dial until the calibration
parameter C4 "frequency setting
voltage gain" appears.
SET
Press the key to show " ".
Display Operation
When adjusting Pr. 38
CAUTION
After performing operation in step 7, do not touch the setting dial until completion of calibration.
Flicker ... Parameter setting complete!!
*The value is nearly 100 (%) in the
maximum position of the potentiometer.
8. SET
(Adjustment complete)
*
SET Press the key to set the value.
By turning the setting dial , you can read another parameter.
SET Press the key to return to the indication (step 4).
SET Press the key twice to show the next parameter ( ).
The frequency meter (indicator) connected to across terminals FM-SD (AM-
5)does not indicate just 50Hz ... Why?
The calibration parameter C1 "FM (AM) terminal calibration" value must
be set. (For the setting method, refer to the instruction manual (basic).)
When write is performed, an error ( ) is displayed.
The gain and bias frequency settings are too close.