BENSHAW RSi GX Series, Hardware Manual

Page: 86 / 168

F53: Electronic Thermal Characteristic Selection (Motor Type)
Range:
0 - 1 (Default: 0)
Description:
To make the ETH function (Motor Type) work correctly, motor cooling
method must be selected correctly according to the motor.
Display: Function:
0 Self-cool
1 Forced-cool
Self-cool:
This is a motor that has a cooling fan connected directly to the motor shaft.
The cooling effects of this type of motor decrease when the motor is running
at low speed. The motor current is derated as the motor speed decrease.
Forced-cool:
This is a blower cooled motor/drive duty motor. The cooling effects of this
type of motor do not change as the motor speed changes.
z
Note:
Even though the motor current changes frequently due to load
fluctuation or acceleration and deceleration, drive calculates the Motor Type
and accumulates the value to protect the motor.
Related functions: H33 [Rated Motor Current, page 92]
F54: Overload Warning Level
Range:
30-150% (Default: 150%)
Description:
This parameter sets the amount of current to issue an alarm signal when the
output current has fallen below the level in F54 [Overload Warning Level].
The alarm signal persists for parameter F55 [Overload Warning Time] even
though the current has become the level below parameter F54 (see I54, I55 -
page 119). The set value is a percentage of H33 [Motor rated current].
Multi-function output terminal (MO-MG) is used as the alarm signal output.
To output the alarm signal, set I54 [Multifunction Output Define, page 119]
to ‘OL’.
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Note:
The drive is not tripped by this function, it is only a warning.
Related functions: H33 [Rated Motor Current], I54 [Multi-function Output
Define]
•
Select one output terminal for this function between MO and 3AC.
•
If selecting MO as output terminal, set I54 to 5 [Overload:OL].
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6 - Parameter Descriptions