Santerno Sinus M, User Manual

Page: 165 / 219

12-1
CHAPTER 12 - PROTECTIVE FUNCTIONS
12.1 Electronic Thermal Protection
Group Code Parameter Set Range Initial Unit
Function
group 1
F50
[ETH (Electronic thermal)
select]
1 0 ~ 1 0
F51
[Electronic thermal level for 1
minute]
-
50 ~ 200
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. 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 a standard fan cooled motor, cooling effects decrease when a motor is running at low speed. A
forced cooled motor is a motor that uses a separately powered cooling fan maximize cooling effect even
in low speed.
F53 [Motor type]
0
Standard fan cooled motors having a cooling fan
directly connected to the shaft
1
Forced cooled motor that uses a separately powered
cooling fan.
Current [%]
100
95
65
20 60
Freq [Hz]
F53 = 1
F53 = 0