What are the differences when converting over the ATS46 to an ATS48 soft starter?
What are the differences when converting over an ATS46 to an ATS48 soft starter?
Altistart ATS46 and ATS48
Application differences between the ATS46 and ATS48 soft starters.
Example of converting old ATS46 to the new ATS48
Control voltage differences.
Old ATS46 used control voltage up to 500VAC
New ATS 48 uses control voltage up to 230VAC.
If you were using control voltage over 230VAC you will need to add a step down control power transformer.
Old ATS46 used 2 fault relays: 1NO and 1NC
New ATS48 only has 1 NO fault relay.
If they were using both NO and NC fault relays they will need to add an interposing relay to the ATS48s control fault circuit.
Power Terminals for the optional shorting contactor
Old ATS46 had 6 power terminals for the optional shorting contactor.
A1 B1 C1 and A2, B2 C2
New ATS48 only has 3 power terminals
A2 B2 C2
If you were using a optional shorting contactor you may need to add a power terminal block to connect the shorting contactors power terminals to the Line terminals marked old A1 B1 C1.
In some cases as described above you may need add several components to make the conversion work.
1: Step down control power transformer
2: Interposing Ice cube relay
3: Power terminal block
Note: In some cases the physical dimensions can be different between the old ATS46 and new ATS48.
Reference manual VD0C32S301B for information on the ATS46 soft starter
Reference manual S1A37491 for information on the ATS48 soft starter.