
Chapter 5 - Parameter Description (Function Group)
58
FUN
¢º
OC lim. time
50 60.0sec
Setting Range:
0 to 60sec
Factory Default:
60sec
[FUN 49] and [FUN 50] turn off the output current
or the inverter when the motor reaches Over Current-
Limit Trip Level and has timed out. These functions
protect against abnormal load conditions.
[Over Current-Limit Trip]
FUN 51: Electronic Thermal (ETH) Selection
FUN 52: Electronic Thermal Level
FUN 53: Motor Type
FUN
¢º
ETH select
51 --- No ---
Setting Range:
No, Yes
Factory Default:
No
FUN
¢º
ETH level
52 150 %
Setting Range:
30 to 150%
Factory Default:
150%
FUN
¢º
Motor type
53 General
Setting Range:
General, Special
Factory Default:
General
These functions are to protect the motor from
overheating without using additional thermal
overload relay. Inverter calculates the temperature
rising of the motor using several parameters and
determines whether or not the motor is overheated.
Inverter will turn off its output and display a trip
message when the electronic thermal feature is
activated.
[FUN 51] activates the ETH parameters by setting
‘Yes’.
[FUN 52] establishes the reference current when the
inverter determines the motor has overheated. It trips
in one minute when 150% of rated motor current
established in [FUN 39] flows for one minute.
[FUN 53] makes the ETH function (Motor i
2
t) work
correctly. The motor cooling method must be
selected correctly according to the motor. The
selections are either ‘General’ or ‘Special’.
A
‘General’
motor is a motor that has a cooling fan connected
directly to the shaft of the motor. Cooling effects of a self-cooled
motor decrease when a motor is running at low speeds. The
motor current is derated as the motor speed decreases.
A
‘Special’
motor is a motor that uses a separate motor to
power a cooling fan. As the motor speed changes, the cooling
effects do not change.
Output Current
Time
Time
FUN 49
[OC lim. level]
FUN 49
[OC lim level]
Output Frequency
FUN 50 [OC lim. time]
OC limit trip
Содержание SV030iH-2U
Страница 13: ...Chapter 1 Installation 11 STARVERT iH VARIABLE FREQUENCY DRIVE STARVERT IH SV132iH 4U SV160iH 4U...
Страница 26: ...Chapter 2 Operation 24 Blank Page...
Страница 34: ...Chapter 3 Quick Start Procedures 32 Blank Page...
Страница 42: ...Chapter 4 Parameter List 40 Blank Page...
Страница 66: ...Chapter 5 Parameter Description Function Group 64...
Страница 67: ...Chapter 5 Parameter Description Function Group 65 Blank Page...
Страница 81: ...Chapter 5 Parameter Description I O Group 79 Blank Page...