Mitsubishi FR - S500 Instruction Manual page 85

Changing example Changing the calibration parameter C4 "frequency setting
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
1.
mode indication.
The inverter must be at a stop.
The inverter must be in the PU operation mode.
(Press the
2. Press the
MODE
setting mode.
3. Turn the setting dial
Pr. 30 must be set to "1".
(For the Pr. 30 setting method, refer to
the instruction manual (basic).)
4.
Press the
SET
When adjusting Pr. 38
Turn the setting dial
5.
parameter C4 "frequency setting
voltage gain" appears.
6. Press the
SET
voltage analog-to-digital conversion value (%).
7. Apply a 5V voltage.
(Turn the external potentiometer
connected to across terminals 2-5 to
the maximum (any position).)
CAUTION
After performing operation in step 7, do not touch the setting dial
8. Press the key to set the value.
SET
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 (
The gain and bias frequency settings are too close.
voltage gain" value
Operation
PU key)
EXT
key to choose the parameter
to show "
key to show "
until the calibration
key to show the analog
By turning the setting dial
Press the
SET
Press the
SET
MODE
".
".
SET
SET
4 5 6
3
2
1
*The value is nearly 100 (%) in the
maximum position of the potentiometer.
SET
Flicker ... Parameter setting complete!!
*The value is nearly 100 (%) in the
maximum position of the potentiometer.
, you can read another parameter.
key to return to the
key twice to show the next parameter (
) is displayed.
76
Display
The parameter
number read
previously
appears.
Analog voltage
analog-to-digital
conversion value
(%) across
terminals 2-5
*
7
8
9
10
until completion of calibration.
*
(Adjustment complete)
indication (step 4).
RUN
PU
EXT
).