Chapter 6 - Parameter Description [APP]
149
connects aux. motors connected directly to commercial
line. After connecting aux. motor, inverter starts again
from the starting frequency. By selecting APP-22 to ‘Yes’,
PID operation is disabled and Control Mode (FU2-47) is
changed to ‘V/F’. PID Bypass is available only when
Freq. Mode (DRV-04) is set to ‘V1’, ‘1’ or ‘V2’. The level
in a tank can be checked in APP-30 [Actual Value] and
APP-31 [Actual Percent].
[Aux. Motor Start/Stop without PID Control]
APP-23: Sleep Delay Time
APP-24: Sleep Frequency
APP-25: Wake-Up Level
Sleep function is initiated when flow demand is low.
Inverter stops motor when the motor runs below Sleep
Frequency (APP-24) during Sleep Delay Time (APP-23).
While in the sleep state, inverter keeps monitoring and
initiates Wake-Up function when the real value of the
controlling amount has decreased below the Wake-Up
level (APP-25).
☞
Note:
Sleep function is not operated if the Sleep Delay
Time (APP-23) is set to ‘0’.
[Sleep Operation]
APP-26: Auto Change Mode Selection
This function is used to change the running order of the
motors to regulate their run-time when multiple motors
are connected for MMC.
[0]:
Not using Auto Change Function.
The inverter keeps the order Main motor
⇒
RLY1
⇒
RLY2
⇒
RLY3
⇒
AUX and do not change the running
order of auxiliary motors.
[1]:
Auto Change Function is applied only to aux. motors.
The inverter changes the order of auxiliary motors
except the main motor connected to the drive. Running
order is Main Motor
⇒
RLY1
⇒
RLY2
⇒
RLY3
⇒
AUX. And then it is changed to Main Motor
⇒
RLY2
⇒
RLY3
⇒
AUX
⇒
RLY1.
[2]:
Auto Change Function is applied to all motors. The
inverter changes the order of all motors. The inverter
operates the initial motor and the others are directly
powered by commercial line. It should be used with
Inter-lock function after configuring external inter-lock
sequence circuit as shown below.
Output
Frequency
Max. Freq.
Starting
Freq.
RUN
STOP
RUN
STOP
H-min
H-max
Water Level in
a Tank
Main Motor
Aux. Motor
APP? Sleep Delay
23 60.0 sec
60.0
23
Factory Default:
60.0 sec
60.0
APP? Sleep Freq
24 0.19 Hz
0.19
24
Factory Default:
0.19 Hz
0.19
APP? WakeUp level
25 35 %
35
25
Factory Default:
35 %
35
Actual Value
Time
Time
t<APP23
Sleep delay
(APP23)
Stop
Start
Wakeup level
(APP25)
Sleep freq
(APP24)
Main
Motor
Output Frequency
APP? AutoCh_Mode
26 1
1
26
Factory Default:
1
1
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