Toshiba TOSVERT VF-AS1 Instruction Manual page 89

Setting of motor electronic thermal protection level 1
If the capacity of the motor is smaller than the capacity of the inverter, or the rated current of the motor is smaller
than the rated current of the inverter, adjust the electronic thermal protection level 1
rated current.
* If the indications are in percentages[%], then 100% equals the inverter's rated output current [A].
Output current reduction factor [%]/[A]
Setting the motor overload starting level
2) Motor 150%-overload time limit
The motor 150%-overload time limit parameter
a load of 150% (overload trip
Operation frequency
0.01Hz *1
Motor overload
time [s]
Motor 150%-
overload time limit
0
×0.6
[Parameter setting]
Title
Motor 150%-overload time limit
×1.0
×0.6
0
=
is used to set the time elapsed before the motor trips under
) within a range of 10 to 2400 sec.
[Example setting]
Operation
Monitored output
frequency
current [%]
no less than
=
68
70
80
90
100
112
120
130
140
150
200
×1.1
×1.5
Motor overload protection characteristics
Function
E-23
so that it fits the motor's
Hz Output frequency [Hz]
Motor overload time [s] (Outline data)
=
=
0.01Hz
34 – 7200
35 – 3600
40 – 1000
45 – 600
50 – 420
56 12000 310
60 2400 270
65 1200 230
70 800 190
75 600 170
100 270 110
Monitored output current [%]
*1 Except for the cases of
Adjustment range
~ sec.
E6581301
5
=
0.01Hz
– 3600
– 1800
– 500
– 300
– 210
6000 155
1200 135
600 115
400 95
300 85
135 55
= [Hz]
,
Default setting