MITSUBISHI ELECTRIC FR-S520 - Manual (Page 102)

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2
2
.10.3 Applied motor
Set the motor used.
POINT
When using the Mitsubishi constant-torque motor, set "1" in Pr. 71 for either V/F
control or automatic torque boost control.
The electronic overcurrent protection is set to the thermal characteristic of the
constant-torque motor.
When you selected the Mitsubishi constant-torque motor, the values of the
following parameters are automatically changed. (For factory settings only)
Pr. 0 "torque boost", Pr. 12 "DC injection brake voltage", Pr. 46 "second torque boost"
Parameter Name Factory Setting Setting Range Remarks
71 Applied motor 0 0, 1 Setting is enabled when Pr. 30 = "1"
Refer to the following list and set this parameter according to the motor used.
Pr. 71 Setting Electronic Overcurrent Protection Thermal Characteristic
0 Thermal characteristics matching a standard motor
1 Thermal characteristics matching the Mitsubishi constant-torque motor
CAUTION
Set this parameter correctly according to the motor used.
Incorrect setting may cause the motor to overheat and burn.
2 .10.4 Voltage input selection
You can change the input (terminal 2) specifications in response to the frequency
setting voltage signal. When entering 0 to 10VDC, always make this setting.
Parameter Name
Factory
Setting
Setting
Range
Remarks
73
0-5V/0-10V
selection
0 0, 1
Terminal 2 input voltage
0: 0-5VDC input
1: 0-10VDC input
Setting is enabled
when Pr. 30 = "1"
CAUTION
The acceleration/deceleration time, which is a slope up/down to the
acceleration/deceleration reference frequency, is not affected by the change in
Pr. 73 setting.
When connecting a frequency setting potentiometer across terminals 10-2-5 for
operation, always set "0" in this parameter.