12. Protective functions
12-1
SV-iC5
12. Protective functions
12.1 Electronic Thermal
Group LED display
Parameter Name Set value
Min/Max
setting
Factory
default
Unit
Function group
1
F50
[Electronic thermal
select]
1 0/1 0
F51
[Electronic thermal level for 1
minute]
-
50/150
150 %
F52
[Electronic thermal level for
continuous]
- 100 %
F53
[Motor type]
- 0/1 0
Select F50 – [Electronic thermal select] to 1.
It activates when the motor is overheated (time-inverse). If current greater than set in F51 flows, inverter output is
turned off for the preset time in F51- [Electronic thermal level for 1 minute].
F51: Enter the value of max current that is capable of flowing to the motor continuously for one
minute. It is set in percent of motor rated current. The value cannot be set lower than F52.
F52: Enter the amount of current for continuous operation. Normally motor rated current is used. It
cannot be set greater than F51.
F53: For an inductance motor, cooling effects decrease when a motor is running at low speed. A
special motor is a motor that uses a separately powered cooling fan maximize cooling effect even in
low speed. Therefore, as the motor speed changes, the cooling do not change.
F53 [Motor type]
0
Standard motors having a cooling fan directly
connected to the shaft
1
Special motor that uses a separately powered cooling
fan.
Current for
continuous [ %]
100
95
65
20 60
Freq [ Hz]
H53 = 1
H53 = 2
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