LSIS sv-ip5a User Manual

Chapter 6 - Parameter Description [APP]
6-65
When the flow
increase
When the flow
decrease
Start
Stop
Aux. Motor
Start/Stop
Frequency rise due to APP-5
8
Output
Frequency
Aux start DT(APP-58)
Stop freq1
(APP-51)
Starting
Freq. Aux stop DT(APP-59)
Frequency drop due to APP-59
Flow
Start freq 1
(APP-44)
APP-58: Delay Time before Starting Aux. Motor
APP-59: Delay Time before Stopping Aux. Motor
APP-60, 61: Accel/Decel time when the number of
pumps is increasing/decreasing
Sets the time the inverter waits before starting the
auxiliary motors.
Sets the time the inverter waits for the input before
stopping the auxiliary motors.
[Aux. Motor Start/Stop with MMC]
APP-60 and APP-61 sets the acceleration/
deceleration time of the Main motor by 0.1 sec when
more/less aux motors are connected.
APP-62: PID Bypass Selection
This is used to bypass the PID operation selected in
APP-02. Select this code to ‘Yes’ when using MMC
function without PID control. The frequency is
determined by actual value (feedback) of control
amount instead of PID controller output. The actual
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 proportional to the
water level of a tank, divide the water level in the
tank into the region for the number of Aux. motors
plus one, and map each region by 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 connects aux. motors
connected directly to commercial line. After
connecting aux. motor, inverter starts again from the
starting frequency. By selecting APP-61 [Regul
Bypass] to ‘Yes’, PID operation is disabled and
Control Mode is changed to ‘V/F’. PID Bypass is
available only when DRV-04 [Freq. Mode] is set to
‘V1’, ‘I’ or ‘Pulse’.
[PID bypass with Main motor and Aux. Motor]
APP► Aux Start DT
58 5.0 sec
5.0 58
Factory Default: 5.0 sec 5.0
Factory Default: 5.0 sec 5.0
APP► Regul Bypass
62 No
0 62
Factory Default: No 0
Output
Frequency
Max. Freq.
Starting
Freq.
RUN
STOP
RUN
STOP
H-min H-max
Water Level in
a Tank
Main Motor
Aux. Motor
APP► Aux Stop DT
59 5.0 sec
5.0 59
APP ► Pid AccTime
60 2.0 sec
2.0 60
Factory Default: 2.0 sec 2.0
APP ► Pid DecTime
61 2.0 sec
2.0 61
Factory Default: 2.0 sec 2.0

LSIS sv-ip5a Specifications

General

Brand	LSIS
Model	sv-ip5a
Category	Controller
Language	English