LSIS LSLV0055H100-4COFN - Page 161

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Learning Advanced Features
Auxiliary Reference Operation Ex #2
Keypad Frequency Setting is Main Frequency and I2 Analog Voltage is Auxiliary
Frequency
• Main frequency: Keypad (Operation frequency 30 Hz)
• Maximum frequency setting (BAS-20): 400 Hz
• Auxiliary frequency setting (BAS-01): I2 [Display by percentage (%) or auxiliary
frequency (Hz) depending on the operation setting condition]
• Auxiliary reference gain setting (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 A as 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.