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Can the ATSxxxx soft starts and ATVxxxxx Variable speed drives operate in two directions?
On their power output terminals, ATS01 ATS22 and ATS48, ATS480 starters only deliver the voltage received phase by phase on their power input terminals.
The direction of rotation of the motor therefore depends solely on the phase sequence upstream of the starter (L1, L2, L3)

ATS48 input (L1, L2, L3)                    ATS48 output (T1, T2, T3)
phase 1 on L1                   =>                     phase 1 on T1
phase 2 on L2                   =>                     phase 2 on T2
phase 3 on L3                   =>                     phase 3 on T3

To reverse the direction, it is advisable to use two interlocked contactors upstream of the device to modify the phase sequence upstream of the starter.

phase 2 on L1                   =>                     phase 2 on T1
phase 1 on L2                   =>                     phase 1 on T2
phase 3 on L3                   =>                     phase 3 on T3

Wiring diagram (please see attachment)

Variable Speed Drives rectifies the 3-phase input voltage to a DC component and then regenerates a completely new 3-phase output voltage that can be created to run the motor in either forward or reverse operation.

ATVxxxxxxx drives are designed for both directions of operation. The factory-set drives would usually have an input pre-assigned depending on model and macro set in the drive, others may require the function to be assigned to a logic input for reverse operation.

phase 1 on L1        =>              DC rectified              phase 1' on U if Forward operation input
voltage                  phase 2' on U if Reverse operation input

phase 2 on L2         =>            DC rectified    =>       phase 2' on V if Forward operation input
voltage                     phase 1' on V if Reverse operation input

phase 3 on L3       =>              DC rectified    =>        phase 3' on W
voltage

Schneider Electric Ireland

Attachment(s)
ATS01 for _rev diagram.png [39.17 KB]
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