Mitsubishi Electric FR-S500 Series Instruction Manual page 47

Changing the output frequency setting of the frequency setting
potentiometer (bias and gain of frequency setting voltage (current))
Changing example Changing the calibration parameter C4 "frequency setting voltage gain"
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)
Operation
1.
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
2.
Press the
MODE
parameter setting mode.
3.
Turn the until "
appears.
Pr. 30 must be set to "1".
(For details, refer to steps 3 to 6 on
4.
Press the
SET
When adjusting Pr. 38
5.
Turn the until the
calibration parameter C4 "frequency
setting voltage gain" appears.
6.
Press the to show the
SET
analog 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
8.
Press the to set the value.
SET
By turning the
Press the
Press the
The frequency meter (indicator) connected to across terminals AM-5 does not
indicate just 50Hz ... Why?
The calibration parameter C1 "AM terminal calibration" value must be set.
(Refer to page 43.)
When write is performed, an error (
The gain and bias frequency settings are too close.
PU
.)
EXT
to choose the
"
page 48
" "
to show .
4
3
2
1
*The value is nearly 100 (%) in
, you can read another parameter.
to return to the "
SET
twice to show the next parameter (
SET
Display
MODE
.)
SET
SET
5 6
7
8
9
*The value is nearly 100 (%) in the maximum
10
position of the potentiometer.
until completion of calibration.
SET
Flicker ... Parameter setting complete!!
(Adjustment complete)
the maximum position of the potentiometer.
" indication (step 4).
) is displayed.
42
RUN
PU
EXT
The parameter
number read
previously
appears.
Analog voltage
value (%) across
terminals 2-5
*
*
).