LSIS 6731001500, Руководство пользователя

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Learning Advanced Features
Note
When the maximum frequency value is high, output frequency deviation may result due to analog
input variation and deviations in the calculations.
Auxiliary Reference Operation Ex #3
V1 is Main Frequency and I2 is Auxiliary Frequency
•
Main frequency: V1 (frequency command setting to 5 V and is set to 30 Hz)
•
Maximum frequency setting (DRV-20): 400 Hz
•
Auxiliary frequency (BAS-01): I2[Display by percentage (%) or auxiliary frequency (Hz)
depending on the operation setting condition]
•
Auxiliary reference gain (BAS-03): 50%
•
IN-01–32: Factory default
Example: An input current of 10.4 mA is applied to I2, with the frequency corresponding to 20 mA
of 60 Hz. The table below shows auxiliary frequency Aas 24 Hz (=60[Hz]x{(10.4[mA]-
4[mA])/(20[mA]-4[mA])} or 40% (=100[%] x {(10.4[mA] - 4[mA]) /(20 [mA] - 4[mA])}.
Setting* Calculating final command frequency**
0 M[Hz]+(G[%]*A[Hz]) 30 Hz(M)+(50%(G)x24 Hz(A))=42 Hz
1 M[Hz]*(G[%]*A[%]) 30 Hz(M)x(50%(G)x40%(A))=6 Hz
2 M[Hz]/(G[%]*A[%]) 30 Hz(M)/(50%(G)x40%(A))=150 Hz
3 M[Hz]+{M[Hz]*(G[%]*A[%])} 30 Hz(M)+{30[Hz]x(50%(G)x40%(A))}=36 Hz
4 M[Hz]+G[%]*2*(A[%]-50[%])[Hz] 30 Hz(M)+50%(G)x2x(40%(A)–50%)x60 Hz=24 Hz
5 M[HZ]*{G[%]*2*(A[%]-50[%])} 30 Hz(M)x{50%(G)x2x(40%(A)–50%)}=-3
Hz( Reverse )
6 M[HZ]/{G[%]*2*(A[%]-50[%])} 30 Hz(M)/{50%(G)x2x(60%–40%)}=-300
Hz( Reverse )
7 M[HZ]+M[HZ]*G[%]*2*(A[%]-50[%]) 30 Hz(M)+30 Hz(M)x50%(G)x2x(40%(A)–50%)=27
Hz
* M: main frequency reference (Hz or rpm)/G: auxiliary reference gain (%)/A: auxiliary
frequency reference (Hz or rpm) or gain (%).
**If the frequency setting is changed to rpm, it is converted to rpm instead of Hz.