11
12
13
14
15
16
17
18
19
20
427
16. (G) Control Parameters
16.1 Manual torque boost
*1
The initial value differs depending on the inverter capacity as follows. For the LD rating (
Pr.570
= "1"), the initial value is changed. (Refer to
).
Starting torque adjustment
• Assuming
Pr.19 Base frequency voltage
is 100%, set the output voltage at 0 Hz to
Pr.0 (Pr.46)
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.
Setting multiple torque boosts (RT signal, Pr.46)
• When changing the torque boost depending on the application or when using single inverter switching between multiple
motors, use the second torque boost.
•
Pr.46 Second torque boost
is enabled when the RT signal is ON. To input the RT signal, set "3" in any parameter from
Pr.178 to Pr.189 (Input terminal function selection)
to assign the function.
NOTE
• The RT signal is the Second function selection signal which also enables other second functions. (Refer to
• Set a larger value when the distance between the inverter and the motor is long or when there is not enough motor torque in
the low-speed range. It may cause overcurrent trip when it is set too large.
• Setting for
Pr.0
and
Pr.46
becomes enabled only when the V/F control is selected.
• When the initial value is set in
Pr.0
, the
Pr.0
setting is automatically changed by changing the
Pr.71 Applied motor
or
Pr.81
Number of motor poles
setting. (Refer to
.)
• Changing the terminal assignment using
Pr.178 to Pr.189 (Input terminal function selection)
may affect the other functions.
Set parameters after confirming the function of each terminal.
Parameters referred to
Pr.3 Base frequency, Pr.19 Base frequency voltage
Pr.71 Applied motor
Pr.178 to Pr.189 (Input terminal function selection)
Inverter
Initial value
FR-E820-0050(0.75K) or lower
FR-E820S-0050(0.75K) or lower
FR-E840-0026(0.75K) or lower
6%
FR-E860-0017(0.75K)
5%
FR-E820-0080(1.5K) to FR-E820-0175(3.7K)
FR-E840-0040(1.5K) to FR-E840-0095(3.7K)
FR-E820S-0080(1.5K) or higher
4%
FR-E820-0240(5.5K) or higher
FR-E840-0120(5.5K) or higher
FR-E860-0027(1.5K) and FR-E860-0040(2.2K)
3%
FR-E860-0061(3.7K) or higher
2%
Output
voltage
Pr.0
Pr.46
Setting
range
Base
frequency
0
100%
Output
frequency
(Hz)
Summary of Contents for FR-E800
Page 17: ...16 1 Introduction 1 3 Related manuals MEMO ...
Page 51: ...50 2 Basic Operation 2 8 I O terminal function assignment MEMO ...
Page 89: ...88 3 Parameters 3 4 Parameter list by function group number MEMO ...
Page 135: ...134 5 Speed Control 5 9 Troubleshooting in the speed control MEMO ...
Page 153: ...152 6 Torque Control 6 7 Troubleshooting in torque control MEMO ...
Page 195: ...194 8 E Environment Setting Parameters 8 18 Current average value monitor signal MEMO ...
Page 237: ...236 10 D Operation Command and Frequency Command 10 6 Operation by multi speed setting MEMO ...
Page 339: ...338 13 T Multi Function Input Terminal Parameters 13 9 Start signal operation selection MEMO ...
Page 455: ...454 16 G Control Parameters 16 13 Speed smoothing control MEMO ...
