Biases And Gains Of Speed Setting Terminals (Pr. 902 To Pr. 905, Pr. 917 To Pr. 920) - Mitsubishi Electric FR-V500 Series Instruction Manual

4.7 Biases and gains of speed setting terminals
(Pr. 902 to Pr. 905, Pr. 917 to Pr. 920
Adjust the biases and gains of the speed setting terminal 2, torque command terminal 3 and multi-function
terminal 1.
The "bias" and "gain" functions are designed to adjust the relationship between the 0 to 10V input signal,
which is externally input for the setting of output speed, torque or magnetic flux.
Parameter Name
902 Speed setting terminal 2 bias
903 Speed setting terminal 2 gain
Torque command terminal 3
904
bias
Torque command terminal 3
905
gain
917 Terminal 1 bias (speed *1)
918 Terminal 1 gain (speed *1)
Terminal 1 bias
919
(torque/magnetic flux)
Terminal 1 gain
920
(torque/magnetic flux)
*1 For calibration of forward/reverse rotation limit, PID control deviation and measured value.
*2 Factory settings may differ because of calibration parameters.
Speed Command/Speed Limit
(Pr. 807, Pr. 868, Pr. 73)
Calibration
Parameter
Terminal
Speed
(main
speed+
auxiliary)
902
terminal 2
(+terminal
903
1)
904
terminal 3
905 only
917
918
919
terminal 1
only
920
Factory setting
(1500r/min)
Bias
Pr. 902
0
Setting signal
CAUTION
Torque command bias and gain can not be set by applying an external negative setting signal to the
torque command terminal 3 or 1.
Factory Setting (*2)
0V
10V
0V
10V
0V
10V
0V
10V
Forward/
Reverse
Rotation
Speed
Limit
Magnetic
Compensation
Override flux
input
command
(terminal
1)
(Pr. 868)
(regenerative
torque limit
(Pr. 868))
Gain Pr. 903
10V
Biases and gains of speed setting terminals
(Pr. 902 to Pr. 905, Pr. 917 to Pr. 920)
)
Setting Range
0r/min 0 to 10V
1500r/min 0 to 10V
0% 0 to 10V
150% 0 to 10V
0r/min 0 to 10V
1500r/min 0 to 10V
0% 0 to 10V
150% 0 to 10V
Torque
Torque Torque
Torque limit
command bias
(Pr. 810)
(Pr. 804) (Pr. 840)
(1500r/min)
(150%)
-10V
51
Remarks
0 to 3600r/min
0 to 3600r/min
0 to 400%
0 to 400%
Extended mode
0 to 3600r/min
0 to 3600r/min
0 to 400%
0 to 400%
Magnetic PID Control
Flux (Pr. 128 to Pr. 134)
Magnetic Measured
Deviation Set point
command
(Pr. 868)
Gain
Bias
Pr. 905
Pr. 904 Pr. 919
Pr. 918
Pr. 917
Pr. 920
10V
Setting signal
Inclination is as set in
Pr. 904 (Pr. 917, Pr. 919)
and Pr. 905 (Pr. 918, Pr. 920).
value
4