LSIS LSLV-S100 - Page 137

Learning Advanced Features
123
The table above lists the available calculated conditions for the main and auxiliary frequency
references. Refer to the table to see how the calculations apply to an example where the Frq code
has been set to 0(Keypad-1), and the inverter is operating at a main reference frequency of
30.00Hz. Signals at -10 – +10V are received at terminal V1, with the reference gain set at 5%. In this
example, the resulting frequency reference is fine-tuned within the range of 27.00–33.00Hz [Codes
In.01–16 must be set to the default values, and In.06 (V1 Polarity), set to 1 (Bipolar)].
Auxiliary Reference Setting Details
Code
Description
bA.01 Aux Ref Src
Set the input type to be used for the auxiliary frequency reference.
Configuration
Description
0
None
Auxiliary frequency reference is disabled.
1
V1
Sets the V1 (voltage) terminal at the control terminal block
as the source of auxiliary frequency reference.
3
V2
Sets the V2 (voltage) terminal at the control terminal block
as the source of auxiliary frequency reference (SW2 must be
set to “voltage”).
4
I2
Sets the I2 (current) terminal at the control terminal block
as the source of auxiliary frequency reference (SW2 must be
set to “current”).
5
Pulse
Sets the TI (pulse) terminal at the control terminal block as
the source of auxiliary frequency reference.
bA.02 Aux Calc Type
Set the auxiliary reference gain with bA.03 (Aux Ref Gain) to configure the
auxiliary reference and set the percentage to be reflected when calculating the
main reference. Note that items 4–7 below may result in either plus (+) or
minus (-) references (forward or reverse operation) even when unipolar analog
inputs are used.
Configuration
Formula for frequency reference
0
M+(G*A)
Main reference+(bA.03xbA.01xIn.01)
1
M*(G*A)
x(bA.03xbA.01)
2
M/(G*A)
Main reference/(bA.03xbA.01)
3
M+{M*(G*A)}
Main reference+{Main reference x(bA.03xbA.01)}
4
M+G*2*(A-50)
Main reference+bA.03x2x(bA.01–50)x In.01
5
M*{G*2*(A-50)}
Main reference x{bA.03x2x(bA.01–50)}
6
M/{G*2*(A-50)}
Main reference/{bA.03x2x(bA.01–50)}
7
M+M*G*2*(A-50)
Main reference+Main reference x bA.03x2x(bA.01–
50)
M: Main frequency reference (Hz or rpm)
G: Auxiliary reference gain (%)
A: Auxiliary frequency reference (Hz or rpm) or gain (%)