![Omron SYSDRIVE MX2 SERIES User Manual Download Page 371](http://html.mh-extra.com/html/omron/sysdrive-mx2-series/sysdrive-mx2-series_user-manual_741918371.webp)
7 - 61
7 Other Functions
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
7-7 R
est
ar
t Fu
nct
ion
s
7
7-7
-1 F
requency Matching R
est
art and F
requ
ency Pull-
in
Rest
ar
t
7-7
Restart Functions
This section describes the restart-related functions and their operations.
The 3G3MX2-V1 Series Inverter supports two restart methods, which can be selected using the follow-
ing functions.
Frequency matching restart and frequency pull-in restart are both intended to enable the inverter to restart
without stopping the motor in a free-run state. After output is shut off, the Digital Operator displays
until the inverter restarts.
z
Frequency matching restart
Frequency matching restart causes the inverter to restart by recognizing the frequency from the volt-
age between the motor terminals during free-run stop and adjusting to it. The inverter restarts at 0
Hz if the voltage between the motor terminals is insufficient.
Use this setting if the inverter is in a free-run stop for a few seconds.
Precautions for Correct Use
When a PM motor is controlled in the PM motor mode, frequency matching restart may cause
an overvoltage at high rotation speeds of 120 Hz or higher, or at low rotation speeds under a
low induction voltage.
If an overcurrent is detected, instead of using frequency matching restart, use an external
brake or DC injection braking to stop the motor before restarting.
7-7-1
Frequency Matching Restart and Frequency Pull-in Restart
Functions related to frequency match-
ing restart and frequency pull-in restart
Description
Default
data
Unit
b001
Power Interruption/Undervolt-
age Restart Selection
(P. 7-63)
Select the restart method after the inverter
shuts off its output.
00
−
b008
Overvoltage/Overcurrent
Restart Selection
(P. 7-63)
Select the restart method after the inverter
shuts off its output due to an overvolt-
age/overcurrent.
00
−
C103
Reset Restart Selection
(P. 5-45)
Restart after Resetting the inverter.
00
−
b088
Free-run Stop Selection
(P. 5-39)
Select the restart method after the free-run
stop input signal is canceled (turned OFF).
00
−
b003
0
Free-run
Motor
rotation
speed
Frequency matching start
FW input
(Forward)
Power
supply
Summary of Contents for SYSDRIVE MX2 SERIES
Page 1: ...Multi function Compact Inverter MX2 Series Type V1 User s Manual I585 E1 01 3G3MX2 A V1 ...
Page 32: ...CONTENTS 29 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 108: ...2 Design 2 48 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 176: ...4 Parameter List 4 42 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 538: ...10 Troubleshooting 10 22 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 598: ...12 Options 12 50 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 614: ...Appendices A 16 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 615: ...I 1 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 I Index ...