Mitsubishi Electric FR-A800, Instruction Manual

Page: 575 / 1042

Parameters (T) Multi-Function Input Terminal Parameters
FR-A800 5 - 395
●
Terminal 4 functions by control
This function is valid under vector control.
Invalid when Pr. 868 = "1"
Invalid when Pr. 868 = "4"
5.12.3 Analog input compensation
Addition compensation or fixed ratio analog compensation (override) with terminal 2 set to auxiliary
input is applicable to the multi-speed operation or terminal 2/terminal 4 speed setting signal (main
speed).
Pr. 858
setting
V/F control
Advanced magnetic
flux vector control Real sensorless vector control, vector control, PM sensorless vector control
Speed control Torque control Position control
0
(initial
value)
Frequency command
(AU signal-ON) Speed command
(AU signal-ON) Speed limit
(AU signal-ON)
⎯
1
⎯
Magnetic flux command Magnetic flux command Magnetic flux command
4
Stall prevention operation
level input
Torque limit
(Pr. 810 = 1)
⎯
Torque limit
(Pr. 810 = 1)
9999
⎯ ⎯ ⎯ ⎯
⎯
: No function
Tab. 5-153: Function of terminal 4 according to the control mode
NOTE When Pr. 868 = "1" (magnetic flux command) or "4" (stall prevention/torque limit), the terminal 4
function is enabled whether the AU terminal is turned ON/OFF.
Parameters referred to
Advanced magnetic flux vector control => page 5-67
Real sensorless vector control => page 5-56
Pr. 804 Torque command source selection => page 5-132
Pr. 807 Speed limit selection => page 5-136
Pr. 810 Torque limit input method selection => page 5-84
Pr. 840 Torque bias selection => page 5-113
Pr. Name Initial value Setting range Description
73
T000
Analog input selection 1
0 to 3, 6, 7, 10 to 13,
16, 17
Addition compensation
4, 5, 14, 15 Override compensation
242
T021
Terminal 1 added compensation
amount (terminal 2)
100% 0 to 100%
Set the percentage of addition
compensation when terminal 2 is set
to the main speed.
243
T041
Terminal 1 added compensation
amount (terminal 4)
75% 0 to 100%
Set the percentage of addition
compensation when terminal 4 is set
to the main speed.
252
T050
Override bias 50% 0 to 200%
Set the percentage of override
function bias side compensation.
253
T051
Override gain 150% 0 to 200%
Set the percentage of override
function gain side compensation.