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Chapter 6 - Parameter Description [APP]
6-67
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.
[Wiring Diagram for Inter-Lock Configuration]
[Sequence Circuit for Inter-Lock Configuration]
APP-27: Auto Change Time
APP-28: Auto Change Level
This function is used to protect motor from running alone
for a long time by changing operation to other motor.
Auto Change is accomplished when the following
conditions are satisfied:
1) The time set in APP-27 is over.
2) The actual value of controlling amount is less than the
value set in APP-28.
3) Only one motor is running.
When above three conditions are met, the inverter stops
the running motor, and changes motor to run by the order
set in APP-26. and then continues operation according to
new order.
If Auto Change Level (APP-28) is set to ‘0’, the function is
initiated only when the motor is in Stop or Sleep state. The
APP►AutoCh_Mode
26 0
0 26
Factory Default: 0 0
3 Phase
Input
K1
K1.1
K2
K2.2
U
V
W
R S T
ACtion
M1
M1M1
M1
M
230VAC
SV-
M1/ACti M2/ACti
onMast
M1/main
K1 K1.1 K2 K2.1
K2.1
K1
K1
K1
K2
K2
K2
K1.1
Auto
A
uto
Main
Main
RLY RLY
P1 P2
CM
S1 S2
APP►AutoEx-intv
27 72:00
72:00 27
Factory Default: 72:00 72:00
APP►AutoEx-level
28 20 %
20 28
Factory Default: 20 % 20