Mitsubishi Electric FR-S520E Series Instruction Manual page 103

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
PU
EXT
2. Press the to choose the parameter
MODE
setting mode.
3. Turn the to show "
Pr. 30 must be set to "1".
(For the Pr. 30 setting method, refer to
the instruction manual (basic).)
4.
Press the to show "
SET
When adjusting Pr. 38
Turn the until the calibration
5.
parameter C4 "frequency setting
voltage gain" appears.
Press the to show the analog
6.
SET
voltage 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
calibration.
8. Press the to set the value.
SET
• By turning the
• Press the
• Press the
The frequency meter (indicator) connected to across terminals FM-SD does
not indicate just 50Hz ... Why?
The calibration parameter C1 "FM 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
)
".
".
, you can read another parameter.
to return to the
SET
twice to show the next parameter (
SET
Explanation of functions (parameters)
MODE
SET
SET
4 5 6
3 7
2
8
1
9
10
*The value is nearly 100 (%) in the
maximum position of the potentiometer.
SET
Flicker ... Parameter setting complete!!
(Adjustment complete)
*The value is nearly 100 (%) in the
maximum position of the potentiometer.
indication (step 4).
) is displayed.
93
Display
RUN
PU
EXT
The parameter
number read
previously
appears.
Analog voltage
value (%) across
terminals 2-5
*
until completion of
*
).
2