11
12
13
14
15
16
17
18
19
20
449
16. (G) Control Parameters
16.10 Slip compensation
16.10
Slip compensation
Under V/F control, the slip of the motor is estimated from the inverter output current to maintain the rotation of the motor
constant.
• Calculate the rated motor slip and set the value in
Pr.245
to enable slip compensation.
Slip compensation is not performed when
Pr.245
= "0 or 9999".
NOTE
• When the slip compensation is performed, the output frequency may become larger than the set frequency. Set
Pr.1 Maximum
frequency
higher than the set frequency.
• Slip compensation will be disabled in the following conditions:
Stall prevention (OLC, OLV) operation, regeneration avoidance operation, auto tuning, stop-on-contact control, acceleration/
deceleration, encoder feedback control operation
Parameters referred to
Pr.1 Maximum frequency
Pr.3 Base frequency
V/F
V/F
V/F
Pr.
Name
Initial value
Setting
range
Description
245
G203
Rated slip
9999
0.01% to
50%
Set the rated motor slip.
0, 9999
No slip compensation
246
G204
Slip compensation time
constant
0.5 s
0.01 to 10 s
Set the response time of the slip compensation. Reducing the
value improves the response, but the regenerative overvoltage
(E.OV[]) error is more likely to occur with a larger load inertia.
247
G205
Constant output range slip
compensation selection
9999
0
No slip compensation in the constant power range (frequency
range higher than the frequency set in
Pr.3
).
9999
Slip compensation is performed in the constant power range.
Synchronized speed at the time of base frequency - rated rotation speed
Synchronized speed at the time of base frequency
× 100 [%]
Rated slip
=
Содержание FR-E800
Страница 17: ...16 1 Introduction 1 3 Related manuals MEMO ...
Страница 51: ...50 2 Basic Operation 2 8 I O terminal function assignment MEMO ...
Страница 89: ...88 3 Parameters 3 4 Parameter list by function group number MEMO ...
Страница 135: ...134 5 Speed Control 5 9 Troubleshooting in the speed control MEMO ...
Страница 153: ...152 6 Torque Control 6 7 Troubleshooting in torque control MEMO ...
Страница 195: ...194 8 E Environment Setting Parameters 8 18 Current average value monitor signal MEMO ...
Страница 237: ...236 10 D Operation Command and Frequency Command 10 6 Operation by multi speed setting MEMO ...
Страница 339: ...338 13 T Multi Function Input Terminal Parameters 13 9 Start signal operation selection MEMO ...
Страница 455: ...454 16 G Control Parameters 16 13 Speed smoothing control MEMO ...
Страница 481: ...480 18 Appendix 18 4 Parameters functions and instruction codes under different control methods MEMO ...