Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 484

 Relationship between the analog input terminal function and the
calibration parameter
• Calibration parameter according to the terminal 1 function
Pr.868
Terminal function
setting
0
Auxiliary Frequency (speed)
(initial
setting
value)
1 Magnetic flux command
Regenerative driving torque
2
limit
3 Torque command
Stall prevention operation
*1
4
level /
torque limit / torque command
Forward/reverse rotation speed
5
limit
6 Torque bias input
9999 No function
• Calibration parameter according to the terminal 4 function
Pr.858
Terminal function
setting
0
(initial Frequency command
value)
1 Magnetic flux command
Stall prevention operation level
*1
4
/
torque limit
9999 No function
*1 Use Pr.148 Stall prevention level at 0 V input or Pr.149 Stall prevention level at 10 V input to adjust bias or gain for setting the stall prevention
operation level.
 To change the frequency for the maximum analog input (Pr.125, Pr.126)
• Use Pr.125 (Pr.126) to change the frequency setting (gain) for the maximum analog input voltage (current).
(C2 (Pr.902) to C7 (Pr.905) settings do not need to be changed.)
 Analog input bias/gain calibration (C2 (Pr.902) to C7 (Pr.905), C12 (Pr.917)
to C15 (Pr.918))
• The "bias" and "gain" functions serve to adjust the relationship between a setting input signal and the output frequency. A
setting input signal is such as a 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mADC signal externally input to set the output
frequency.
• Set the bias frequency of the terminal 2 input using C2 (Pr.902). (It is initially set to the frequency at 0 V.)
• Use Pr.125 to set the output frequency to the frequency command voltage (current) set by Pr.73 Analog input selection.
• Set the bias frequency of the terminal 1 input using C12 (Pr.917). (It is initially set to the frequency at 0 V.)
• Set the gain frequency of the terminal 1 input using C14 (Pr.918). (It is initially set to the frequency at 10 V.)
• Set the bias frequency of the terminal 4 input using C5 (Pr.904). (It is initially set to the frequency at 4 mA.)
Bias setting
C2 (Pr.902) Terminal 2 frequency setting
bias frequency
C3 (Pr.902) Terminal 2 frequency setting
bias
C5 (Pr.904) Terminal 4 frequency setting
bias frequency
C6 (Pr.904) Terminal 4 frequency setting
bias
C16 (Pr.919) Terminal 1 bias command
(torque)
C17 (Pr.919) Terminal 1 bias (torque)
C16 (Pr.919) Terminal 1 bias command
(torque)
C17 (Pr.919) Terminal 1 bias (torque)
C12 (Pr.917) Terminal 1 bias frequency
(speed)
C13 (Pr.917) Terminal 1 bias (speed)
C16 (Pr.919) Terminal 1 bias command
(torque)
C17 (Pr.919) Terminal 1 bias (torque)
—
Bias setting
C5 (Pr.904) Terminal 4 frequency setting
bias frequency
C6 (Pr.904) Terminal 4 frequency setting
bias
C38 (Pr.932) Terminal 4 bias command
(torque)
C39 (Pr.932) Terminal 4 bias (torque)
C38 (Pr.932) Terminal 4 bias command
(torque)
C39 (Pr.932) Terminal 4 bias (torque)
—
Calibration parameter
Gain setting
Pr.125 Terminal 2 frequency setting gain
frequency
C4 (Pr.903) Terminal 2 frequency setting
gain
Pr.126 Terminal 4 frequency setting gain
frequency
C7 (Pr.905) Terminal 4 frequency setting
gain
C18 (Pr.920) Terminal 1 gain command
(torque)
C19 (Pr.920) Terminal 1 gain (torque)
C18 (Pr.920) Terminal 1 gain command
(torque)
C19 (Pr.920) Terminal 1 gain (torque)
C14 (Pr.918) Terminal 1 gain frequency
(speed)
C15 (Pr.918) Terminal 1 gain (speed)
C18 (Pr.920) Terminal 1 gain command
(torque)
C19 (Pr.920) Terminal 1 gain (torque)
—
Calibration parameter
Gain setting
Pr.126 Terminal 4 frequency setting gain
frequency
C7 (Pr.905) Terminal 4 frequency setting
gain
C40 (Pr.933) Terminal 4 gain command
(torque)
C41 (Pr.933) Terminal 4 gain (torque)
C40 (Pr.933) Terminal 4 gain command
(torque)
C41 (Pr.933) Terminal 4 gain (torque)
—
5.12 (T) Multi-function input terminal parameters
1
2
3
4
5
6
7
8
9
10
483
5. PARAMETERS