Mitsubishi Electric FR-E700 Instruction Manual page 240
Frequency inverter
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Also See for FR-E700:
- Instruction manual (608 pages) ,
- Basic instruction manual (149 pages) ,
- Installation manuallines (38 pages)
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Motor brake and stop operation
Operation voltage (torque) setting (Pr. 12)
Use Pr. 12 to set the percentage to the power supply voltage.
When Pr. 12 = 0%, the DC injection brake is not operated. (At a stop, the motor coasts.)
When using the constant-torque motor (SF-JRCA) and energy saving motor (SF-HR,
SF-HRCA), change the Pr.12 setting as follows:
Constant-torque motor:
FR-E720S-110 or less, FR-E740-095 or less ........4%
FR-E740-120 or more ............................................2%
Energy saving motor SF-HR, SF-HRCA:
FR-E720S-110 or less, FR-E740-095 or less.........4%
FR-E740-120 and 170 ............................................3%
FR-E740-230 and 300 ............................................3%
NOTES
For the FR-E740-120 and 170, when the Pr. 12 setting is the following, changing the Pr. 71
"Applied motor" setting automatically changes the Pr. 12 setting. Therefore, it is not
necessary to change the Pr. 12 setting.
Parameter 12 = 4% (initial value)
The Pr. 12 setting is automatically changed to 2% if the Pr. 71 value is changed from the
value selecting the standard motor (0, 3 to 6, 23, 24, 40, 43, 44) to the value selecting the
constant torque motor (1, 13 to 16, 50, 53, 54).
Parameter 12 = 2%
The Pr. 12 setting is automatically changed to 4% (initial value) if the Pr. 71 value is changed
from the value selecting the constant torque motor (1, 13 to 16, 50, 53, 54) to the value
selecting the standard motor (0, 3 to 6, 23, 24, 40, 43, 44).
Even if the Pr. 12 setting is increased, braking torque is limited so that the output current is
within the rated inverter current.
As stop holding torque is not produced, install a mechanical brake.
6 - 100
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