Chapter 6 - Parameter Description [APP]
6-74
Auto Change is accomplished when the following
conditions are satisfied:
The time set in APP-67 is over.
The drive output speed (Hz.) is less than the APP-68
setting.
The difference between the Reference (Set point) and
the Feedback signal is greater than the percent set in
APP-71.
All Aux motors Off (in AUX_EXCH Mode)
OR One motor is running (in MAIN_EXCH Mode).
When the above conditions are met, the drive stops
the running motor, and changes the motor to run by
the order set in APP-66 and then continues operation
according to the new run order. The drive starts
counting only when the auxiliary motor is running.
In MAIN_EXCH Mode, when the drive output
frequency is below Auto Change Level (APP-68), the
drive automatically stops the motor and performs an
Auto change function to operate the next motor.
Refer to the wiring example when Interlock is used
during Auto change MAIN_EXCH Mode.
Wiring Diagram for Inter-Lock Configuration
Sequence Circuit for Inter-Lock Configuration
3 Phase
Input
K1
K1.1
K2
K2.2
U V W
R S T
SG
M1
M2
120V
SG
M1/SG M2/SG
M1/main
K1 K1.1
K2
K2.1
K2.1
K1
K1
K2
Auto
Auto
Main
Main
RLY RLY
M1 M2
CM
S1 S2
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