Overheat Protection Of The Motor By The Inverter (Pr. 9) - Mitsubishi 700 Series Instruction Manual

3.3.2

Overheat protection of the motor by the inverter (Pr. 9)

Set the rated motor current in Pr. 9 Electronic thermal O/L relay to protect the motor from overheat.
Parameter
Number
Electronic thermal O/L
9
relay
* Refer to page 125 for the rated inverter current value.
Changing
Change Pr. 9 Electronic thermal O/L relay to 7A according to the motor rated current. (FR-D740-3.7K)
example
Operation
1.
Screen at powering ON
The monitor display appears.
2.
Press to choose the PU operation mode.
3.
Press to choose the parameter setting
mode.
4.
Turn until "
5.
Press to read the present set value.
" " (8A (initial value)) appears for the FR-
D740-3.7K.
6.
Turn to change the set value to "
(7A).
7.
Press to set.
Turn
Press
Press
Name Initial Value
Rated Inverter
current ∗
" (Pr. 9) appears.
"
to read another parameter.
to show the setting again.
twice to show the next parameter.
Setting Range
0 to 500A Set the rated motor current.
Display
PU indication is lit.
PRM indication is lit.
(The parameter number read previously
appears.)
(Refer to page 125 for initial value of the rated
inverter current.)
Flicker...Parameter setting complete!!
Before operation
Description
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