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7 Other Functions
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
7-
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7-8
-5 Ove
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unction
This function suppresses the overcurrent caused by a steep current increase due to an impact load etc.
It causes the inverter to stop accelerating when the output current reaches approximately 180% of the rated current.
• If setting the Overcurrent Suppression Selection (b027) to 01 (Enabled) still causes an overcurrent,
set it to 02 (Reduced voltage startup). This setting reduces the output voltage and moreover sup-
presses the overcurrent at the startup after a temporal stop.
• Although the overcurrent suppression function is enabled, an overcurrent trip may occur due to short
circuit or equivalent.
Use this signal to have the inverter trip via an error signal generated by a peripheral system. To do so,
set the Multi-function Input S1 to S7 Selection (C001 to C007) to 12 (EXT).
When the EXT terminal turns ON, the inverter trips with the alarm code E12 displayed and shuts off its output.
Once the inverter trips with the alarm code E12 displayed, the trip status will not be reset even if the
error signal is reset from external equipment (the terminal EXT is turned OFF).
In this case, perform the reset operation or cycle the power supply to reset the trip.
• Do not turn ON the terminal EXT when the power supply is off. Otherwise, the inverter may not store
the fault monitor data correctly.
7-8-5
Overcurrent Suppression Function
Parameter No.
Function name
Data
Default
data
Unit
b027
Overcurrent Suppression
Selection
00:
Disabled
01
*1
*1. The default data was changed from the previous model.
−
01:
Enabled
02:
Enabled (Reduced voltage startup)
7-8-6
External Trip (EXT)
Parameter No.
Function name
Data
Default
data
Unit
C001 to C007
Multi-function Input S1 to
S7 Selection
12:
EXT (External trip)
−
−
Output current
180% of rated
current
Time
Time
Output frequency
RUN command FW/RV
Input to terminal EXT
Free running
RS (Reset) input
Motor rotation speed
AL output
(Alarm signal)
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 ...