LSIS 6731001500, User Manual

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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 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]) 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.