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Operation Frequency; Start Frequency/stop Frequency; Run/stop Control With Frequency Setting Signals - Toshiba Tosvert VF-AS1 Instruction Manual

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Operation frequency

6.7

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
[Parameter setting]
Title

Starting frequency setting

Stop frequency setting
Output frequency [Hz]
Start frequency setting
Stop frequency setting
Note: Set these parameters so that the start frequency

If the
higher than the -set frequency to start the motor.

If both

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

Operation starting frequency

Operation starting frequency hysteresis
: The output frequency drops to 0Hz immediately by the frequency set with .
Function


0
-set frequency is lower than the

are set to  Hz, the motor will start even if the frequency set is 0.0Hz.
and
Function
F-13
Adjustment range
~ Hz
~ Hz

is higher than the stop frequency

-set frequency, the reference frequency must be
Adjustment range
~
~ Hz
E6581442
Default setting


6
Time [s]

.
Default setting



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