Mitsubishi Electric FR-F740-00023

95
Selection and protection of a motor
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4.8 Selection and protection of a motor
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120
Electronic thermal relay
function for transistor
protection
52.5%
105%
50
100
150
60
120
180
240
50
60
70
6Hz
20Hz
10Hz
6Hz
0.5Hz
30Hz or more*
3
20Hz
10Hz
0.5Hz
Pr. 9 = 50% setting of
inverter rating*
1.2
Pr. 9 = 100% setting
of inverter rating*
1.2
(s) unit display in this range
(min) unit display in
this range
Operation time (min)Operation time (s)
Characteristic when
electronic thermal relay
function for motor
protection is turned off
(When Pr. 9 setting is 0(A))
30Hz
or more*
3
Inverter output current(%)
(% to the rated inverter current)
Operation range
Range on the right of
characteristic curve
Non-operation range
Range on the left of
characteristic curve