Mitsubishi Electric 800 Series Instruction Manual page 281

(F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
Main speed
• The main speed used in the remote setting corresponds with each of the following operation modes.
PU operation mode / NET operation mode
External operation mode / PU/External combined operation mode 2 (Pr.79 = "4")
PU/External combined operation mode 1 (Pr.79 = "3")

Set Pr.28 Multi-speed input compensation selection to "1" when enabling compensation for input via terminal 1.
Acceleration/deceleration operation
• The output frequency changes as follows when the set frequency is changed by the remote setting function.
Frequency Time setting
Set frequency Pr.44/Pr.45
Output frequency Pr.7/Pr.8
Acceleration (RH)
Deceleration (RM)
Set frequency
Output frequency
NOTE
• If the time setting of the output frequency is longer than the time setting of the set frequency, the motor accelerates/
decelerates according to the time setting of the output frequency.
• Deceleration to the main speed or lower
By setting Pr.59 = "11 to 13", the speed can be decelerated to the frequency lower than the main speed (set by the External
operation frequency (except multi-speed setting) or PU operation frequency).
Main speed
Minimum
frequency
Forward rotation(STF)
Acceleration(RH)
Deceleration(RM)
• Regardless of whether the remote setting is enabled or disabled, the acceleration/deceleration time set for the output
frequency can be changed to the second or third acceleration/deceleration time by turning ON the RT or X9 signal.
• The acceleration/deceleration time setting of the set frequency is fixed at the Pr.44/Pr.45 setting.
280
PARAMETERS
Operation mode
The set frequency increases/decreases by remote setting according to the Pr.44/Pr.45 setting.
The output frequency increases/decreases by the set frequency according to the Pr.7/Pr.8 setting.
ON
Pr.44
Pr.7
0
ON
ON
Description
ON
Pr.45
Pr.8
Pr.59 = " 1, 2, 3"
Decelerates to the main speed
Pr.59 = " 11, 12, 13"
Decelerates to the minimum frequency
Time
ON
Main speed
Digital setting
Analog input

Analog input via terminal 4 (AU signal ON)
Time
Time
