Mitsubishi Electric FR-A800 Series Instruction Manual page 384

NOTE
• Under induction motor control (under V/F control, Advanced magnetic flux vector control, Real sensorless vector control, and
Vector control), the output starts at the frequency set in Pr.13. Under PM sensorless vector control, the output always starts
at 0.01 Hz.
• The inverter does not start if the frequency setting signal has a value lower than that of Pr.13. For example, while Pr.13 = "20
Hz", the inverter output starts when the frequency setting signal reaches 20 Hz.
 Start-time hold function (Pr.571)
• This function holds 0.01 Hz during the period set in Pr.571.
• Pr.571 is active when the low-speed range high-torque characteristic is enabled (Pr.788 = "9999").
Output
frequency
(Hz)
60
0
STF
CAUTION
• Note that when Pr.13 is set to a value equal to or lower than Pr.2 Minimum frequency, simply turning ON the start signal
runs the motor at the frequency set in Pr.2 even if the command frequency is not given.
Parameters referred to
Pr.2 Minimum frequencypage 428
Pr.7 Acceleration
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Time
Holds 0.01 Hz
Pr.571 setting time
ON
timepage 367
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5.8 (F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
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5. PARAMETERS