Toshiba VF-SX - Manual (Page 118)

TOSHIBA
11-11
11.6 Electronic Thermal Protective Level [t Hr]
The electronic thermal operation level [ b H C ] can be adjusted according to
the motor rating and characteristics. The range of values for this parameter can
be set between 10 and 100* of the drive’s rated output current.
Time
One
Minute
Figure 11.3 Electronic Thermal Operation Characteristics
11.7 Stall Prevention Function Activation Level [5 11]
The stall prevention parameter [
5 t L
] can be set between 10% and 150% of the
rated output current. The stall prevention parameter is NOT activated when set
to 200*. If the current exceeds this stall prevention operation level, the
frequency and voltage will be retarded and drive tripping will be prevented.
When this parameter operates the acceleration and deceleration times will be
slightly longer than their set values.
11.8 Electronic Thermal Protection
Characteristic Selection
[0 til]
The electronic thermal characteristics [ O L f l ] can be changed frora/to
"standard motor" or "VF motor", according to the type of motor to be driven by
the drive. Furthermore, the stall feature can also be selected in conjunction
with the
[ 0 L r i ]
function.