Omron SYSDRIVE MX2 SERIES, User Manual

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7 - 75
7 Other Functions
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
7-
8 Fu
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7
7-8
-3 Electr
onic T
hermal W
arning
z b910=02: Enabled (b911 subtraction rate)
The electronic thermal function is separated for the motor and for the inverter. The heat radiation is
calculated with the subtraction ratio set in b911.
Set the b911 value according to the thermal time constant of the motor.
z b910=03: Enabled (b912 time parameter subtraction)
The electronic thermal function is separated for the motor and for the inverter. The heat radiation is
calculated with the time parameter set in b912.
Set the b912 value according to the thermal time constant of the motor.
Use this function to output a warning signal before the motor electronic thermal function executes an
overload protection. In C061, set the warning level.
Set the Multi-function Output P1/P2 Selection (C021/C022) or Multi-function Relay Output (MA, MB)
Function Selection (C026) to 13 (THM).
7-8-3 Electronic Thermal Warning
Parameter
No.
Function name Data
Default
data
Unit
C061 Electronic Thermal Warning Level
0.
Electric thermal warning disabled
90. %
1. to 100.
*1
Set the output level of the thermal
warning signal.
*1. Set this in units of percentage as 100% of the overload trip level (E05).
C021, C022,
C026
Multi-function Output P1/P2
Selection
Multi-function Relay Output (MA,
MB) Function Selection 13: THM (Electronic thermal
warning)
− −
b911
100
[%]
Electronic thermal heat radiation total counter
Overload detection level
Time
b912
b912
×
5
100
[%]
40
[%]
Electronic thermal heat radiation total counter
Time