(G) Control parameters
Parameters
5 - 688
5.16.1 Manual
torque
boost
Voltage drop in the low-frequency range can be compensated, improving reduction of the motor
torque in the low-speed range.
●
Motor torque in the low-frequency range can be adjusted according to the load, increasing the
motor torque at the start up.
●
By using the RT signal or X9 signal, it is possible to switch between 3 types of torque boost.
Initial value for the FR-A820-00077(0.75K) or lower and FR-A840-00038(0.75K) or lower.
Initial values for the FR-A820-00105(1.5K) to FR-A820-00250(3.7K), FR-A840-00052(1.5K) to
FR-A840-00126(3.7K).
Initial values for the FR-A820-00340(5.5K), FR-A820-00490(7.5K), FR-A840-00170(5.5K), FR-A840-
00250(7.5K).
Initial values for the FR-A820-00630(11K) to FR-A820-03160(55K), FR-A840-00310(11K) to FR-A840-
01800(55K).
$
Initial value for the FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher.
Starting torque adjustment
●
Assuming Pr. 19 "Base frequency voltage" is 100%, set the output voltage at 0 Hz to Pr. 0 (Pr. 46,
Pr. 112) in percentage.
●
Perform the adjustment of the parameter little by little (approximately 0.5%), and confirm the
status of the motor each time. The motor may overheat when the value is set too high. Do not use
more than 10% as a guideline.
Pr.
Name
Initial
value
Setting
range
Description
0
G000
Torque boost
0 to 30%
Set the output voltage at 0 Hz in %.
46
G010
Second torque boost
9999
0 to 30%
Set the torque boost value at when RT signal is ON.
9999
Without second torque boost
112
G020
Third torque boost
9999
0 to 30%
Set the torque boost value at when X9 signal is ON.
9999
Without third torque boost
Fig. 5-339:
Relationship between output frequency and
output voltage
I002748E
V/F
V/F
V/F
0
100%
Output
voltage
Setting
range
Output
frequency
(Hz)
Base
frequency
Pr. 0
Pr. 46
Pr. 112
Summary of Contents for FR-A820-00046 (0.4K)
Page 2: ......
Page 4: ......
Page 144: ...System configuration for Ethernet communication FR A800 E Installation and wiring 2 114 ...
Page 202: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 1090: ...Check first when you have a trouble Protective functions 6 50 ...
Page 1189: ...Appendix EC Declarations of Conformity FR A800 A 49 ...
Page 1190: ...EC Declarations of Conformity Appendix A 50 ...
Page 1191: ...Appendix EC Declarations of Conformity FR A800 A 51 ...
Page 1192: ...EC Declarations of Conformity Appendix A 52 ...
Page 1193: ...Appendix EC Declarations of Conformity FR A800 A 53 ...
Page 1194: ...EC Declarations of Conformity Appendix A 54 ...
Page 1195: ...Appendix EC Declarations of Conformity FR A800 A 55 ...
Page 1196: ...EC Declarations of Conformity Appendix A 56 ...
Page 1197: ...Appendix EC Declarations of Conformity FR A800 A 57 ...
Page 1198: ...EC Declarations of Conformity Appendix A 58 ...
Page 1199: ...Appendix EC Declarations of Conformity FR A800 A 59 ...
Page 1200: ...EC Declarations of Conformity Appendix A 60 ...
Page 1201: ...Appendix EC Declarations of Conformity FR A800 A 61 ...
Page 1202: ...EC Declarations of Conformity Appendix A 62 ...
Page 1203: ...Appendix EC Declarations of Conformity FR A800 A 63 ...
Page 1204: ...EC Declarations of Conformity Appendix A 64 ...
Page 1205: ...Appendix EC Declarations of Conformity FR A800 A 65 ...
Page 1206: ...EC Declarations of Conformity Appendix A 66 ...
Page 1207: ...Appendix EC Declarations of Conformity FR A800 A 67 ...
Page 1208: ...EC Declarations of Conformity Appendix A 68 ...
Page 1209: ...Appendix EC Declarations of Conformity FR A800 A 69 ...
Page 1210: ...EC Declarations of Conformity Appendix A 70 ...
Page 1211: ...Appendix EC Declarations of Conformity FR A800 A 71 ...
Page 1212: ...EC Declarations of Conformity Appendix A 72 A 7 2 FR A846 series ...
Page 1213: ...Appendix EC Declarations of Conformity FR A800 A 73 ...
Page 1214: ...EC Declarations of Conformity Appendix A 74 ...
Page 1215: ...Appendix EC Declarations of Conformity FR A800 A 75 ...
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