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 (dr.20): 400 Hz
• 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 output
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])}.
Calculating final command frequency
30 Hz(M)+(50%(G)x24 Hz(A))=42 Hz
30 Hz(M)x(50%(G)x40%(A))=6 Hz
30 Hz(M)/(50%(G)x40%(A))=150 Hz
M[Hz]+{M[Hz]*(G[%]*A[%])}
30 Hz(M)+{30[Hz]x(50%(G)x40%(A))}=36 Hz
M[Hz]+G[%]*2*(A[%]-
50[%])[Hz]
30 Hz(M)+50%(G)x2x(40%(A)–50%)x60 Hz=24
Hz
M[HZ]*{G[%]*2*(A[%]-50[%])}
30 Hz(M)x{50%(G)x2x(40%(A)–50%)}=-3
Hz(Reverse)
M[HZ]/{G[%]*2*(A[%]-50[%])}
30 Hz(M)/{50%(G)x2x(60%–40%)}=-300
Hz(Reverse)
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/ G: Auxiliary reference gain (%)/ A: Auxiliary
frequency reference (Hz or rpm) or gain (%)
When the maximum frequency value is high, output frequency deviation may result due to
analog input variation and deviations in the calculations.
5.2 Jog Operation
The jog operation allows for a temporary control of the inverter. You can enter a jog
operation command using the multi-function terminals.
The jog operation is the second highest priority operation, after the dwell operation. If
a jog operation is requested while operating the multi-step, up-down, or 3-wire
operation modes, the jog operation overrides all other operation modes.