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7 Other Functions
7 - 74
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
• Setting the Motor Electronic Thermal Selection (b910) to 00 (Disabled) enables the electronic thermal
function to simultaneously detect the inverter and the motor.
This has the same characteristics as those of the conventional electronic thermal function, which the
electronic thermal detection characteristics for the inverter are the basic characteristics. Specifically,
the rated output current that serves as the reference value for overload detection changes to the set
b012/b212 value. The detection characteristics also change depending on whether the inverter is in
the heavy or light load mode.
For details on the electronic thermal detection function of the inverter, refer to
5-3-2 Electronic Ther-
mal Function
on page 5-16. Note that the subtraction ratio is the same as when b911 is set to 01.
z
b910=01: Enabled (Fixed subtraction rate)
The electronic thermal function is separated for the motor and for the inverter. For the motor, the
heat radiation is calculated with a fixed subtraction ratio.
This subtraction ratio is fixed and applied to electronic thermal values from 100% to 0% for 10 min-
utes.
• If 150% of overload capacity of your motor is large:
Set a small value for 1 minute relative to the time during which 150% of the overload capacity of
your motor is applied.
• If 150% of overload capacity of your motor is small:
Set a large value for 1 minute relative to the time during which 150% of the overload capacity of
your motor is applied.
Parameter
No.
Function name
Data
Default
data
Unit
b012/b212
1st/2nd Electronic Thermal
Level
0.20
×
Rated current to 1.00
×
Rated current
Rated
current
A
b013/b213
1st/2nd Electronic Thermal
Characteristics Selection
00: Reduced torque characteristics
01
−
01: Constant torque characteristics
02: Free setting
b910
Motor Electronic Thermal
Selection
*1*2
*1. When b910 is set to 01 to 03, the electronic thermal function is separated for the motor and for the inverter.
The electronic thermal function for the inverter works based on the constant torque characteristics with refer-
ence to the rated output current of the inverter, independent of the b012/b212 setting. For details on the elec-
tronic thermal detection function of the inverter, refer to
5-3-2 Electronic Thermal Function
on page 5-16.
*2. When b910 is set to 01 to 03, the overload trip error is divided into the motor overload E05.
and the inverter
overload E38.
.
00: Disabled
03
−
01: Enabled (Fixed subtraction rate)
02: Enabled (b911 subtraction rate)
03: Enabled (b912 time parameter subtraction)
b911
Motor Electronic Thermal
Subtraction Ratio
0.10 to 100000.00
(Displays upper 4 digits)
600.00
s
b912
Motor Electronic Thermal
Subtraction Time Constant
0.10 to 100000.00
(Displays upper 4 digits)
120.00
s
b913
Motor Electronic Thermal
Integration Gain
1.0 to 200.0
100.0
%
100
[%]
10 [min]
Electronic thermal heat radiation total counter
Overload detection level
Time
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 ...