448
16. (G) Control Parameters
16.9 Regeneration avoidance function
NOTE
• During the regeneration avoidance operation, the stall prevention (overvoltage) "OLV" is displayed and the Overload warning
(OL) signal is output. Set the operation pattern at an OL signal output using
Pr.156 Stall prevention operation selection
.
Use
Pr.157 OL signal output timer
to set the OL signal output timing.
• The stall prevention is enabled even during regeneration avoidance operation.
• The regeneration avoidance function cannot decrease the actual deceleration time for the motor to stop. Since the actual
deceleration time is determined by the regenerative power consumption performance, consider using a regeneration unit (FR-
BU2, BU, FR-BU, FR-XC, FR-CV, FR-HC2) or brake resistor (FR-ABR, etc.) to decrease the deceleration time.
• When using a regeneration unit (FR-BU2, BU, FR-BU, FR-XC, FR-CV, FR-HC2) or brake resistor (FR-ABR, etc.) to consume
the regenerative power at constant speed, set
Pr.882
= "0 (initial value)" (the regeneration avoidance function is disabled).
When consuming the regenerative power at the time of deceleration with the regeneration unit, etc., set
Pr.882
= "2" (enables
regeneration avoidance function only at the constant speed).
• When using the regeneration avoidance function under Vector control, noise may be generated from the motor during
deceleration. In such case, adjust the gain. (Refer to
.)
Parameters referred to
Pr.1 Maximum frequency
Pr.8 Deceleration time
Pr.22 Stall prevention operation level
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 ...