5-112
5-9 Functions Relating to Protections, Warnings and Various Output Signals
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
Free Setting
Desired electronic thermal characteristics (reduction multiple characteristics) can be set
according to the load for the purpose of protecting the motor.
The setting range is shown below.
Reference
If the rated current value is set to (b016), (b018) and (b020), the reduction multiple becomes
× 1.0.
Example) 3-phase 200 V, 1.5 kW (CT rating 8 A)
b012 = 8 (A), b015 = 30 (Hz), b016 = 8 (A)
Since the reduction multiple is 8/8 = 1.0, the trip characteristic at 30 Hz is 60 s at 12 A.
Parameter
No.
Function name Data
Default
setting
Unit
b015
Free-electronic
Thermal
Frequency 1
0 to Free-electronic Thermal Frequency 2
0. Hzb017
Free-electronic
Thermal
Frequency 2
Free-electronic Thermal Frequency 1 to
Free-electronic Thermal Frequency 3
b019
Free-electronic
Thermal
Frequency 3
Free-electronic Thermal Frequency 2 to
400.
b016/b018/
b020
Free-electronic
Thermal Current
1/2/3
0.0 to Rated current
Set current values for each break point. 0.00 A
Reduction
multiple
Inverter output frequency (Hz)
×
1.0
×
0.8
0
3
400
Output current
value (A)
b020
b018
b016
0
b015 b017 b019
A004/A204
Maximum frequency (Hz)
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