Mitsubishi Electric 800 Series Instruction Manual page 199

 Acceleration/deceleration operation
• The running frequency changes as follows when the set frequency is changed by the remote setting function.
Frequency
Set frequency Pr.44/Pr.45
Running frequency Pr.7/Pr.8
Acceleration (RH)
Deceleration (RM)
Set frequency
Running frequency
NOTE
• If the time setting of the running frequency is longer than the time setting of the set frequency, the motor accelerates/
decelerates according to the time setting of the running 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 running
frequency can be changed to the second acceleration/deceleration time by turning ON the RT signal.
• The acceleration/deceleration time setting of the set frequency is fixed at the Pr.44/Pr.45 setting.
 Frequency setting storage
• The remotely set frequency is stored, held, or cleared according to the Pr.59 setting. When the inverter is turned ON again
and the operation is resumed, the setting shown in the parentheses will be applied.
Pr.59 setting
1, 11 Stored (stored frequency)
2, 12 Cleared (main speed)
3, 13 Cleared (main speed)
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5. PARAMETERS
5.5 (F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
Time setting
The set frequency increases/decreases by remote setting according to the Pr.44/Pr.45 setting.
The running frequency increases/decreases by the set frequency according to the Pr.7/Pr.8
setting.
ON
Pr.44
Pr.7
0
ON
ON
Power OFF
Held (stored frequency)
Held (stored frequency)
Cleared (main speed)
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
STF/STR signal OFF
Time
Time