Mitsubishi Electric FR-D720S SC EC, Instruction Manual

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Simple mode parameter list Basic settings
5 - 2
5.1.1 Overheat protection of the motor by the inverter
Set this parameter when using a motor other than the Mitsubishi standard motor (SF-JR) and
Mitsubishi constant torque motor (SF-HRCA). Set the rated motor current in Pr. 9 "Electronic
thermal O/L relay" to protect the motor from overheat.
Refer to appendix A for the rated inverter current value.
쑶
Pr. No. Name Initial Value Setting Range Description
9
Electronic thermal O/L
relay
Rated inverter
current
0–500A Set the rated motor current.
Example
쑴
Change the Pr. 9 "Electronic thermal O/L relay" setting to 5A according to the motor rated
current.
I002011E
Fig. 5-1: Setting of the electronic thermal O/L relay
Screen at powering on
The monitor display appears.
Press the PU/EXT key to choose the PU
operation mode.
Press the MODE key to choose the parameter
setting mode.
Turn the digital dial until P.9 (Pr. 9) appears.
Press the SET key to show the currently set value.
The initial setting "8.00A" (for FR-D740-080SC
as an example) appears.
Turn the digital dial clockwise to change the set
value to "5.00" (5A).
Press the SET key to set.
Operation Display
The parameter number read previously appears.
Flicker ... Parameter setting complete!
PU indication is lit.
Refer to appendix A
for the rated inverter
current value.
By turning the digital dial, you can read another parameter.
Press the SET key to show the setting again.
Press the SET key twice to show the next parameter.
PRM indication is lit.