Mitsubishi Electric fr-e700 series, Инструкция по эксплуатации

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Limit the output frequency Parameter
6 - 52
6.4 Limit the output frequency
6.4.1 Maximum and minimum frequency (Pr. 1, Pr. 2, Pr. 18)
You can limit the motor speed. Clamp the upper and lower limits of the output frequency.
햲
The above parameter can be set when Pr. 160 "User group read selection" = 0.
Set the maximum frequency
Set the upper limit of the output frequency in Pr. 1 "Maximum frequency". If the frequency of the fre-
quency command entered is higher than the setting, the output frequency is clamped at the maxi-
mum frequency.
When you want to perform operation above 120 Hz, set the upper limit of the output frequency to Pr.
18 "High speed maximum frequency". (When Pr. 18 is set, Pr. 1 automatically switches to the frequen-
cy of Pr. 18. When Pr. 18 is set, Pr. 18 automatically switches to the frequency of Pr. 1.)
Purpose Parameters that must be set
Refer to
Section
Set upper limit and lower limit of output
frequency Maximum/minimum frequency Pr. 1, Pr. 2,
Pr. 18 6.4.1
Perform operation by avoiding machine
resonance points Frequency jump Pr. 31–Pr. 36 6.4.2
Pr.
No.
Name Initial Value
Setting
Range
Description Parameters referred to
Refer to
Section
1
Maximum frequency 120 Hz 0–120 Hz
Set the upper limit of the output
frequency. 13
15
125
126
Starting frequency
Jog frequency
Terminal 2 frequency
setting gain frequency
Terminal 4 frequency
setting gain frequency
6.7.2
6.6.2
6.16.3
6.16.3
2
Minimum frequency 0 Hz 0–120 Hz
Set the lower limit of the output
frequency.
18
High speed maximum frequency
햲
120 Hz 120–400 Hz
Set when performing the operation at
120 Hz or more
Fig. 6-10:
Maximum and minimum output frequency
I001100E
NOTE When performing operation above 50 Hz using the frequency setting analog signal, change Pr.
125 (Pr. 126) "Frequency setting gain". (Refer to section 6.16.3.) If only Pr. 1 or Pr. 18 is changed,
operation above 50 Hz cannot be performed.
Pr. 1
Pr. 18
Clamped at the
maximum frequency
5, 10 V
(20 mA)
Output
frequency [Hz]
Pr. 2
Frequency
setting
0
(4 mA)
Clamped at the
minimum frequency