93
frequency, you need to set P0-03 = 11.
*Note: Only external installation is supported, but not on the inverter body.
Auxiliary frequency source B
channel selection
Frequency source superposition
selection
Ones bit: frequency source selection
0: main frequency source A
1: Operation results of main and auxiliary
frequency sources (determined by tens bits)
2: Switching between main frequency A and
auxiliary frequency B
Tens bit: Operation relationship of main and
auxiliary frequency sources
0: A+B
1: A-B
2: max(A,B)
3: min(A,B)
The using method of auxiliary frequency channel is similar to the main frequency input channel P0-03.
Note: when the frequency source superposition is selected (P0-05 ones bit is 1), that is, when the VFD
frequency is set by superposition of main and auxiliary frequency:
(1) The auxiliary frequency input channel is digital setting (P0-04 = 0 or 1), and the preset frequency
(P0-10) does not work any more. The frequency adjustment made by the user through keyboard keys
(or up and down of X terminal) is directly based on the main frequency.
(2) The auxiliary frequency input channel is analog or pulse setting (P0-04 = 2, 3, 4 or 5). 100% of the
input setting corresponds to the range of auxiliary frequency source B, which is set through P0-06 and
P0-07.
(3) The main and auxiliary frequency sources cannot be set to the same channel, otherwise it is easy to
cause confusion.
Auxiliary frequency source B range
selection
0: Relative to the maximum frequency
1: Relative to the main frequency source A
Auxiliary frequency source B range
When the frequency source is selected as "frequency superposition" (P0-05 ones bit is 1), these two parameters
are used to determine the adjustment range of the auxiliary frequency source.
P0-06 is used to determine the object corresponding to the range of the auxiliary frequency source. It can be
selected as relative to the maximum frequency or relative to the main frequency source A. If it is selected as
relative to the main frequency source, the range of the auxiliary frequency source will change with the change
of the main frequency source A.
Digital setting of auxiliary frequency
source offset when superposition
0.00Hz~max output frequency (P0-13)
This parameter is only valid when the frequency source is selected as the main and auxiliary operation (P0-05
ones bit is 1).
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