Mitsubishi Electric FR-E800 Instruction Manual page 532

• Pr.19 can be used in the following cases.
(a) When regenerative driving (continuous regeneration, etc.) is performed frequently
Output voltage will get higher than the specification during the regenerative driving, which may cause overcurrent trip
(E.OC[]) by the increase in motor current.
(b) When the fluctuation of power supply voltage is high
When the power supply voltage exceeds the rated voltage of the motor, fluctuation of rotation speed or overheating
of motor may occur due to excessive torque or increase in motor current.
• To operate a Vector control dedicated motor (SF-V5RU) with V/F control, the setting is as shown in the following table.
Motor model
SF-V5RU, 3.7 kW or lower
SF-V5RU, 5.5 kW or higher
SF-V5RUH, 3.7 kW or lower
SF-V5RUH, 5.5 kW or higher
NOTE
• When the operation becomes not possible due to failure in encoder or other reasons under Vector control, set "9999" in Pr.80
Motor capacity or Pr.81 Number of motor poles to perform V/F control.
• When the Advanced magnetic flux vector control, Real sensorless vector control, Vector control, or PM sensorless vector
control is selected, Pr.3, Pr.47, and Pr.19 will become disabled, and Pr.83 and Pr.84 will become enabled.
However, S-pattern curve with Pr.29 Acceleration/deceleration pattern selection = "1" (S-pattern acceleration/deceleration
A) enables Pr.3 or Pr.47. (S-pattern curve under PM sensorless vector control is the rated frequency of the motor.)
• Changing the terminal assignment using Pr.178 to Pr.189 (Input terminal function selection) may affect the other functions.
Set parameters after confirming the function of each terminal.
Parameters referred to
Pr.14 Load pattern selectionpage 532
Pr.29 Acceleration/deceleration pattern
Pr.83 Rated motor voltage, Pr.84 Rated motor
Pr.178 to Pr.189 (Input terminal function
170 V
160 V
340 V
320 V
selectionpage 267
frequencypage 532
selection)page 410
Pr.19 setting
50 Hz
Pr.3 setting
531
16. (G) Control Parameters
16.2 Base frequency voltage
11
12
13
14
15
16
17
18
19
20