Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации

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Acceleration and deceleration Parameter
6 - 62
6.6.2 Starting frequency and start-time hold function
You can set the starting frequency and hold the set starting frequency for a certain period of time.
Set these functions when you need the starting torque or want to smooth motor drive at a start.
The above parameters can be set when Pr. 160 = 0.
Starting frequency setting (Pr. 13)
The motor is started with the specified start frequency as soon as the frequency inverter re-
ceives a start signal and a frequency setting that is greater than or equal to the preset starting
frequency.
Pr.
No.
Name Initial Value Setting Range Description Parameters referred to
Refer to
Section
13
Starting frequency 0.5Hz 0–60Hz
Frequency at start can be set in
the range 0 to 60Hz.
You can set the starting fre-
quency at which the start signal
is turned on.
2 Minimum
frequency 6.3.1
571
Holding time at start 9999
0–10s
Set the holding time of Pr. 13
"Starting frequency".
9999
Holding function at a start is
invalid
Fig. 6-28:
Starting frequency parameter
I000008C
NOTE The inverter will not start if the frequency setting signal is less than the value set in Pr. 13.
Example
쑴
When 5Hz is set in Pr. 13, the motor will not start running until the frequency setting signal
reaches 5Hz.
쑶
m
WARNING:
Note that when Pr. 13 is set to any value lower than Pr. 2 "Minimum frequency", simply
turning on the start signal will run the motor at the preset frequency even if the
command frequency is not input.
60
Pr.13
0
Output
frequency [Hz]
Setting r
a
nge
ON Forward rotation
t
Hz