Maximum And Minimum Frequency; Base Frequency, Base Frequency Voltage - Mitsubishi FR - S500 Instruction Manual

2
.3.2

Maximum and minimum frequency

You can clamp the upper and
lower limits of the output
frequency.
Parameter
1 Maximum frequency
2 Minimum frequency
<Setting>
Use Pr. 1 to set the upper limit of the output frequency. If the frequency of the
frequency command entered is higher than the setting, the output frequency is
clamped at the maximum frequency.
Use Pr. 2 to set the lower limit of the output frequency.
REMARKS
When using the potentiometer (frequency setting potentiometer) connected across
terminals 2-5 to perform operation above 60Hz <50Hz>, change the Pr. 1 and Pr. 38
(Pr. 39 when using the potentiometer across terminals 4-5) values.
When the Pr. 2 setting is higher than the Pr. 13 "starting frequency" value, note
that the motor will run at the set frequency by merely switching the start signal
on, without entering the command frequency.
Related parameters
Starting frequency setting
Maximum frequency setting using external potentiometer
Pr. 30 "extended function display selection" (refer to page 72), Pr. 38 "frequency setting
voltage gain frequency", Pr. 39 "frequency setting current gain frequency" (refer to page 74)
2
.3.3

Base frequency, Base frequency voltage

Used to adjust the inverter
outputs (voltage, frequency) to
the motor rating.
Output frequency (Hz)
Factory Setting
Name
<EC version>
60Hz <50Hz>
CAUTION
Pr. 13 "starting frequency" (refer to page 65)
Pr.1
Pr.2
0
(4mA)
Setting Range
0 to 120Hz
0Hz 0 to 120Hz
Pr.19
59
Set frequency
5,10V
(20mA)
Output
frequency (Hz)
Pr.3
Pr.47
2