Biases And Gains Of The Frequency Setting Voltage (Current) - Mitsubishi FR - S500 Instruction Manual

2
.3.18

Biases and gains of the frequency setting voltage (current)

You can set the magnitude (slope) of the output frequency as desired in relation
to the external frequency setting signal (0 to 5V, 0 to 10V or 4 to 20mA DC).
The "bias" and "gain" functions are used to adjust the relationship between the
input signal entered from outside the inverter to set the output frequency, e.g. 0
to 5VDC, 0 to 10VDC or 4 to 20mADC, and the output frequency.
60Hz<50Hz>
( Pr.38 )
0Hz( C2 )
0V
(0% C3 )
Frequency setting voltage signal
Parameter
Frequency setting voltage gain
38
frequency
Frequency setting current gain
39
frequency
Frequency setting voltage bias
C2 (902)
frequency
C3 (902) Frequency setting voltage bias
C4 (903) Frequency setting voltage gain
Frequency setting current bias
C5 (904)
frequency
C6 (904) Frequency setting current bias
C7 (905) Frequency setting current gain
* Settings may differ because of calibration parameters.
The parameter numbers within parentheses are those for use of the parameter unit (FR-PU04).
When the parameter unit (FR-PU04) is used, operation from the operation panel is not accepted.
POINT
Bias setting for 0-5VDC (0-10VDC) input Use calibration parameters C2, C3 for setting.
Gain setting for 0-5VDC (0-10VDC) input
Bias setting for 4-20mADC input
Gain setting for 4-20mADC input
(For 4 to 20mADC input, set "4" in any of Pr. 60 to Pr. 63 (input terminal function
selection) and assign AU (current input selection) to any of terminals RH, RM, RL
and STR, and turn on the AU signal.)
to
Factory setting
(Across
terminals
2-5)
5V or 10V
(100% C4 )
Name
60Hz<50Hz>
( Pr.39 )
0Hz( C5 )
4mA
(20% C6 )
Pr.73
Frequency setting current signal
Factory Setting Setting
<EC version>
60Hz
1 to 120Hz
<50Hz>
60Hz
1 to 120Hz
<50Hz>
0Hz 0 to 60Hz
0% * 0 to 300%
96% * 0 to 300%
0Hz 0 to 60Hz
20% * 0 to 300%
100% * 0 to 300%
Use Pr. 38, calibration parameter C4 for
setting.
Use calibration parameters C5, C6 for
setting.
Use Pr. 39, calibration parameter C7 for
setting.
74
Factory setting
(Across
terminals
4-5)
20mA
(100% C7 )
Remarks
Range
Setting is enabled
when Pr. 30 = "1".