Toshiba VF-PS1 - Operation Frequency; Start Frequency;Stop Frequency; Run;Stop Control with Frequency Setting Signals

E6581386
F-12
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 