BENSHAW RSi H2 Series - Page 142

Parameter Descriptions
130
890053-00-02
Auxiliary Reference Operation Example #2
• Keypad Frequency Setting is Main Frequency and I2 Analog Voltage is Auxiliary Frequency
• Main frequency: Keypad (Operation frequency 30Hz)
• Maximum frequency setting (DRV-20): 400Hz
• Auxiliary frequency setting (BAS-03): I2 [Display by percentage(%) or auxiliary
frequency(Hz) depending on the operation setting condition]
• Auxiliary reference gain setting (BAS-05): 50%
• Analog Input scaling parameters IN-01–58 are at factory default settings
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 Example #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 (DRV-20): 400Hz
• Auxiliary frequency (BAS-03): I2[Display by percentage (%) or auxiliary frequency (Hz)
depending on the operation setting condition]
• Auxiliary reference gain (BAS-05): 50%
• Analog Input scaling parameters IN-01–58 are at factory default settings
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