E6581528
F-13
6
6.7 Operation frequency
6.7.1 Start frequency/Stop frequency
: Start frequency setting
: Stop frequency setting
• Function
The frequency set with the parameter is put out as soon as operation is started.
Use the parameter when a delay in response of starting torque according to the
acceleration/deceleration time is probably affecting operation. Setting the starting frequency to a value from
0.5 to 2.0Hz (max. 5Hz) is recommended. The occurrence of an overcurrent can be suppressed by setting
this frequency below the rated slippage of the motor. If 0 speed torque is needed (=, ), set ,
at 0.0Hz.
• At start up : frequency set with is put out immediately.
• At stop : The output frequency drops to 0Hz immediately by the frequency set with .
[Parameter setting]
Title Function Adjustment range Default setting
Starting frequency setting ~ Hz
Stop frequency setting
~ Hz
Start frequency setting
Stop frequency setting
Output frequency [Hz]
Time [s]
0
Note: Set these parameters so that the start frequency is higher than the stop frequency .
If the -set frequency is lower than the -set frequency, the reference frequency must be
higher than the -set frequency to start the motor.
If both and are set to Hz, the motor will start even if the frequency set is 0.0Hz.
6.7.2 Run/Stop control with frequency setting signals
: Operation start frequency
: Operation start frequency hysteresis
• Function
The Run/Stop of operation can be controlled simply with frequency setting signals.
[Parameter setting]
Title Function Adjustment range Default setting
Operation starting frequency ~
Operation starting frequency hysteresis ~ Hz
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