Acceleration/Deceleration Operation; Output Frequency; Frequency Setting Storage; Clearing The Settings - Mitsubishi Electric FR-F800 Instruction Manual

(F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
Acceleration/deceleration operation
• When the acceleration signal (RH) is turned ON, the set frequency increases. The increased speed at this time is
determined by the setting of Pr.44 Second acceleration/deceleration time. Turning OFF the RH signal will stop
increasing the set frequency and run the motor at the frequency at that time.
• When the deceleration signal (RM) is turned ON, the set frequency decreases. The decreased speed at this time is
determined by the setting of Pr.45 Second deceleration time. When Pr.45 = "9999", the deceleration speed is the same
as Pr.44 setting. Turning OFF the RM signal will stop decreasing the set frequency and runs the motor at the frequency at
that time.
• When Pr.59 = any of "11, 12, or 13", deceleration can be performed to a frequency equal to or lower than the main speed
(External operation mode frequency except multi-speed or PU operation mode frequency).
Main speed
Minimum
frequency
0
Forward rotation(STF)
ON
Acceleration(RH)
Deceleration(RM)
NOTE
• While the RT signal is OFF, Pr.44 Second acceleration/deceleration time and Pr.45 Second deceleration time are used
as the set frequency accelerating/decelerating time at turn ON of the acceleration/deceleration signal. If the Pr.7 and Pr.8
settings are longer, the acceleration/deceleration time set by Pr.7 and Pr.8 are applied.
While the RT signal is ON, Pr.44 and Pr.45 settings are used as the acceleration/deceleration time regardless of the Pr.7 and
Pr.8 settings.
Output frequency
• During External operation, the remotely-set frequency set with RH and RM signals is added to the terminal 4 input and
External operation mode frequency (PU operation mode frequency when Pr.79 = "3" (External and PU combined
operation)) except multi-speed setting. (When compensating analog input, set Pr.28 Multi-speed input compensation
selection = "1". If the RH and RM signals are used for acceleration/deceleration while the frequency is set by analog
voltage input (terminal 2 or 4, selected by Pr.28 = "0"), the auxiliary input via the terminal 1 is disabled.)
• During PU operation, the remotely-set frequency set with RH and RM signal operation is added to the PU running
frequency.
Frequency setting storage
• When Pr.59 = "1, 11", the remotely-set frequency (frequency set by RH/RM operation) is stored to the memory (EEPROM).
When power is switched OFF once, then ON, operation is resumed with the stored set frequency.
• When Pr.59 = "2, 3, 12, 13", the set frequency is not stored, so when switching the power ON again after being switched
OFF, the remotely-set frequency becomes 0 Hz.
• The remotely-set frequency is stored at the point when the start signal (STF or STR) turns OFF. Remotely-set frequency is
stored every minute after turning OFF (ON) the RH and RM signals together. Each minute, the frequency is overwritten in
the EEPROM if the latest frequency is different from the previous one when comparing the two. This cannot be written with
RL signals.
NOTE
• When switching the start signal from ON to OFF, or changing frequency by the RH or RM signal frequently, set the frequency
setting value storage function (write to EEPROM) invalid (Pr.59 = "2, 3, 12, 13"). If the frequency setting value storage
function is valid (Pr.59 = "1, 11"), the frequency is written to EEPROM frequently, and this will shorten the life of the EEPROM.
Clearing the settings
• When Pr.59 = "1, 2, 11, 12" and the clear signal (RL) is turned ON, the remotely-set frequency is cleared. When Pr.59 = "3,
13" and the STF (STR) signal is turned OFF, the remotely-set frequency is cleared.
Pr.59 = " 1, 2, 3"
Decelerates to the main speed
Pr.59 = " 11, 12, 13"
Decelerates to the minimum frequency
Time
ON
ON
195
PARAMETERS
5
GROUP
F