Mitsubishi Electric 800 Series Instruction Manual page 255

 Setting the minimum frequency (Pr.2)
• Set Pr.2 Minimum frequency to the lower limit of the output frequency.
• If the set frequency is Pr.2 or less, the output frequency is clamped at Pr.2 (will not fall below Pr.2).
NOTE
• To operate with a frequency higher than 60 Hz using frequency-setting analog signals, change the Pr.125 (Pr.126)
(frequency setting gain) setting. Simply changing the Pr.1 and Pr.18 settings does not enable operation at a frequency
higher than 60 Hz.
• During PM motor control, the upper and lower limits are for the commanded frequency.
• When Pr.15 Jog frequency setting is equal to or less than Pr.2 setting, the Pr.15 setting has precedence over the Pr.2
setting.
• If a jump frequency that exceeds Pr.1(Pr.18) Maximum frequency is set for the 3-point frequency jump, the maximum
frequency setting is the set frequency. If the set frequency is less than the jump frequency Pr.2 Minimum frequency, the
jump frequency is the set frequency. (The set frequency can be equal to or lower than the frequency lower limit.) When
stall prevention is activated to decrease the output frequency, the output frequency may drop to Pr.2 or below.
CAUTION
• Note that when Pr.2 is set to any value equal to or higher than Pr.13 Starting frequency, simply turning ON the start signal will run the
motor at the frequency set in Pr.2 even if the command frequency is not input.
Parameters referred to
Pr.13 Starting frequency
Pr.15 Jog frequency
Pr.125 Terminal 2 frequency setting gain frequency, Pr.126 Terminal 4 frequency setting gain frequency
254
5. PARAMETERS
5.7 (H) Protective function parameter
page
201, page 202
page 224
page 328