App-15 - 18: Stop Frequency Of Aux. Motor; App-19: Delay Time Before Operating Aux.motor; App-20: Delay Time Before Stopping Aux. Motor; App-21: The Number Of Aux. Motors - LG SV-iS5 Instruction Manual

Chapter 6 - Parameter Description [APP]
order if the output frequency is over the frequencies set
in APP-11 to APP-14, respectively, and the time is over
APP-19.
APP-15: Stop Frequency of Aux. Motor 1
APP-16: Stop Frequency of Aux. Motor 2
APP-17: Stop Frequency of Aux. Motor 3
APP-18: Stop Frequency of Aux. Motor 4
APP? Stop freq1
15 15.00 Hz
Factory Default:
15.00 Hz
APP? Stop freq2
16 15.00 Hz
Factory Default:
15.00 Hz
APP? Stop freq3
17 15.00 Hz
Factory Default:
15.00 Hz
APP? Stop freq4
18 15.00 Hz
Factory Default:
15.00 Hz
The inverter turns off RLY3, RLY2, RLY1, and AUX in
order if the output frequency is below the frequencies set
in APP-15 to APP-18, respectively, and the time is over
APP-20.
APP-19: Delay Time before Operating Aux.
Motor

APP-20: Delay Time before Stopping Aux. Motor

APP? Aux Start DT
19 60.0 sec
Factory Default:
60.0 sec
Sets the time the inverter waits before starting the
auxiliary motors.
APP? Aux Stop DT
20 60.0 sec
Factory Default:
60.0 sec
Sets the time the inverter waits before stopping the
auxiliary motors.
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15 15.00
15.00
16 15.00
15.00
17 15.00
15.00
18 15.00
15.00
19 60.0
60.0
20 60.0
60.0
148
Output
Aux start DT(APP-19)
Frequency
Start freq 1
(APP-11)
Stop freq
1(APP-15)
Starting
Freq. Aux stop DT(APP-20)
Aux. Motor
Start/Stop
Stop
[Aux. Motor Start/Stop with MMC]

APP-21: The Number of Aux. Motors

APP?Nbr Aux's
21 4
Factory Default:
4
Sets the number of auxiliary motors connected to the
inverter.
APP-22: PID Bypass Selection
APP?Regul Bypass
22 --- No ---
Factory Default:
No
This is used to bypass the PID operation selected in
FU2-47. Select this code to ' Yes' when using MMC
function without PID control. The frequency is
determined by real value of control amount instead PID
controller output. The real value is also used as the
Start/Stop reference of Aux. motors.
The following figure shows the running pattern with this
function applied for controlling the flow rate of a tank. To
control the flow rate according to the water level of a
tank, divide the water level of the tank into the region to
the number of Aux. motors plus one, and map each
region from staring frequency to maximum frequency.
The inverter increases output frequency to lower the
water level in the tank when the water level in the tank
rises. When reaching maximum frequency, inverter
Frequency rise according to
APP-19
Frequency drop according to
APP-20
Flow
When the Flow
increse
Start
When the Flow
decrease
21 4
4
22 0
0