5 Basic Settings
5 - 46
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
Additional Information
If the reset signal is input during the restart standby time, the “frequency at shutoff” data stored
in the inverter will be cleared, as a result the inverter restarts from 0 Hz after the reset is cleared.
(Example 1) Frequency matching restart
When the Restart Standby Time (b003) elapses, the inverter detects the motor frequency
and executes the frequency matching restart function without stopping the motor rotation.
If an overcurrent trip occurs during a frequency matching restart, increase the restart
standby time.
Even when the Free-run Stop Selection is set to 01 (Frequency matching start), the
inverter may restart at 0 Hz in the following cases.
• The motor rotation speed is equal to or lower than 1/2 of the base frequency.
• The motor induction voltage decays quickly and the motor rotation speed cannot be
detected.
• The inverter recognizes that the detected frequency is equal to or less than the value set
in the Frequency Matching Lower Limit Frequency (b007).
(Example 2) Frequency pull-in restart
When the set Restart Standby Time (b003) elapses, the inverter starts output at the fre-
quency set in the Starting Frequency Selection at Frequency Pull-in Restart (b030).
Then, the inverter decelerates the motor according to the Frequency Pull-in Restart
Parameter (b029) setting, while suppressing the output current to the value set in the Fre-
quency Pull-in Restart Level (b028).
When the current decreases to or below the Frequency Pull-in Restart Level (b028), the
inverter accelerates again to return to the original frequency.
If this method causes an overcurrent trip, decrease the value set in the Frequency Pull-in
Restart Level (b028).
b003
0
Free-run
Motor
rotation
speed
Frequency matching start
FW
RS input
b028
b003
FW input
(Forward)
RS input
(Reset)
Inverter output
frequency
Decelerates according to b029
Output current
Motor rotation
speed
Frequency selected
in b030
Trip occurs.
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 ...