Remote Setting Function - Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual

 Variable-torque acceleration/deceleration (Pr.29 = "6")
• This function is useful for variable-torque load such as a fan and blower to accelerate/decelerate in short time.
Linear acceleration/deceleration is performed in the area where the output frequency > base frequency.
[Variable-torque acceleration/deceleration]
Output frequency
Set frequency
Pr.3 Base frequency
Pr.7
Acceleration time
NOTE
• When the base frequency is out of the range 45 to 65 Hz, the linear acceleration/deceleration is performed even if Pr.29 = "6".
• Even if Pr.14 Load pattern selection = "1 (variable torque load)", variable torque acceleration/deceleration setting is
prioritized and the inverter operates as Pr.14 = "0 (constant torque load)".
• For the variable torque acceleration/deceleration time setting, set the time period to reach Pr.3 Base frequency. (Not the time
period to reach Pr.20 Acceleration/deceleration reference frequency.)
• The variable torque acceleration/deceleration is disabled during PM sensorless vector control. (Linear acceleration/
deceleration is performed.)
Parameters referred to
Pr.3 Base frequencypage 673
Pr.7 Acceleration time, Pr.8 Deceleration time, Pr.20 Acceleration/deceleration reference
Pr.10 DC injection brake operation
Pr.14 Load pattern selectionpage 674
Pr.178 to Pr.189 (Input terminal function
5.8.3

Remote setting function

Even if the operation panel is located away from the enclosure, contact signals can be used to perform continuous variable-
speed operation, without using analog signals.
By simply setting this parameter, the acceleration, deceleration and setting clear functions of the remote speed setter (FR-FK)
become available.
Pr. Name
59 Remote function
F101 selection
 Remote setting function
• Use Pr.59 to enable/disable the remote setting function and enable/disable the frequency setting storage function during
remote setting.
Time
Pr.8
Deceleration time
frequencypage 681
selection)page 496
Initial Setting
RH, RM, RL signal
value range
0 Multi-speed setting
1 Remote setting
2 Remote setting
3 Remote setting
0
11 Remote setting
12 Remote setting
13 Remote setting
5.8 (F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
frequencypage 349
Description
Frequency setting
function storage
—
Displayed
Not used
Not used
(Turning STF/STR
OFF clears remotely-
set frequency.)
Displayed
Not used
Not used
(Turning STF/STR
OFF clears remotely-
set frequency.)
Deceleration to the frequency
lower than the set frequency
Not available
Available
5. PARAMETERS
1
2
3
4
5
6
7
8
9
10
359