LSIS LSLV-S100 - Page 178

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Learning Advanced Features
Example: an input current of 10.4mA is applied to I2, with the frequency corresponding to
20mA of 60Hz. The table below shows auxiliary frequency A as 24Hz(=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])
30Hz(M)+(50%(G)x24Hz(A))=42Hz
1
M[Hz]*(G[%]*A[%])
30Hz(M)x(50%(G)x40%(A))=6Hz
2
M[Hz]/(G[%]*A[%])
30Hz(M)/(50%(G)x40%(A))=150Hz
3
M[Hz]+{M[Hz]*(G[%]*A[%])}
30Hz(M)+{30[Hz]x(50%(G)x40%(A))}=36Hz
4
M[Hz]+G[%]*2*(A[%]-50[%])[Hz]
30Hz(M)+50%(G)x2x(40%(A)–
50%)x60Hz=24Hz
5
M[HZ]*{G[%]*2*(A[%]-50[%])
30Hz(M)x{50%(G)x2x(40%(A)–50%)} = -
3Hz(Reverse)
6
M[HZ]/{G[%]*2*(A[%]-50[%])}
30Hz(M)/{50%(G)x2x(60%–40%)} = -
300Hz(Reverse)
7
M[HZ]+M[HZ]*G[%]*2*(A[%]-
50[%])
30Hz(M)+30Hz(M)x50%(G)x2x (40%(A)–
50%)=27Hz
* 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.
Auxiliary Reference Operation Ex #3
V1 is Main Frequency and I2 is Auxiliary Frequency
• Main frequency: V1 (frequency command setting to 5V and is set to 30Hz)
• Maximum frequency setting (dr.20): 400Hz
• Auxiliary frequency (bA.01): I2[Display by percentage (%) or auxiliary frequency (Hz)
depending on the operation setting condition]
• Auxiliary reference gain (bA.03): 50%
• In.01–32: Factory default
Example: an input current of 10.4mA is applied to I2, with the frequency corresponding to
20mA of 60Hz. The table below shows auxiliary frequency Aas 24Hz(=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])
30Hz(M)+(50%(G)x24Hz(A))=42Hz
1
M[Hz]*(G[%]*A[%])
30Hz(M)x(50%(G)x40%(A))=6Hz
2
M[Hz]/(G[%]*A[%])
30Hz(M)/(50%(G)x40%(A))=150Hz
3
M[Hz]+{M[Hz]*(G[%]*A[%])}
30Hz(M)+{30[Hz]x(50%(G)x40%(A))}=36Hz
4
M[Hz]+G[%]*2*(A[%]-50[%])[Hz]
30Hz(M)+50%(G)x2x(40%(A)–
50%)x60Hz=24Hz