Toshiba TOSVERT VF-PS1, Инструкция по эксплуатации

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E6581531
F-12
6
6.7
Operation frequency
6.7.1 Start frequency/Stop frequency
H
: Start frequency setting
H : Stop frequency setting
• Function
The frequency set with the parameter
H
is put out as soon as operation is started.
Use the
H
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 (
RV
= ), set
H
,
H
at 0.0Hz.
• At start up : frequency set with
H
is put out immediately.
• At stop : The output frequency drops to 0Hz immediately by the frequency set with
H
.
[Parameter setting]
Title Function Adjustment range Default setting
H Starting frequency setting ~ Hz
H
Stop frequency setting ~ Hz
Start frequency setting
H
Stop frequency setting
H
Output frequency [Hz]
Time [s]
0
Note: Set these parameters so that the start frequency
H
is higher than the stop frequency
H
.
If the H -set frequency is lower than the H -set frequency, the reference frequency must be
higher than the
H
-set frequency to start the motor.
If both
H
and
H
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
H
: Operation start frequency
H
: 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
H
Operation starting frequency ~
HJ
H
Operation starting frequency hysteresis ~ Hz