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Toshiba Tosvert VF-AS1 Instruction Manual Page 94

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 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  so that it fits the motor's
rated current.
* If the indications are in percentages[%], then 100% equals the inverter's rated output current [A].
2) Motor 150%-overload time limit 
The motor 150%-overload time limit parameter  is used to set the time elapsed before the motor trips under
5
a load of 150% (overload trip ) within a range of 10 to 2400 sec.
Motor overload
time [s]
Motor 150%-
overload time limit

[Parameter setting]
Title

Output current reduction factor [%]/[A]
×1.0
×0.6
Setting the motor overload starting level
Operation
frequency
Operation frequency
0.01Hz *1
no less than

0
×1.1

×0.6

Motor overload protection characteristics
Function
Motor 150%-overload time limit

0
=Hz
[Example setting]
Monitored output
current [%]
= =

68
34
70
35
80
40
90
45
100
50
112
56
120
60
130
65
140
70
150
75
200
100
Monitored output current [%]
×1.5

Adjustment range
~ sec.
E-24
E6581442
Output frequency [Hz]
Motor overload time [s] (Outline data)
=
=
0.01Hz 
0.01Hz
7200
3600
3600
1800
1000
500
600
300
420
210
12000
310
6000
155
2400
270
1200
135
1200
230
600
115
800
190
400
600
170
300
270
110
135
*1 Except for the cases of
=
[Hz]


,
Default setting

95
85
55

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