Yes, it is possible but not for all types of softstarters.
Pumps and conveyor belts loaded with fragile products are the two main applications suitable for soft stop
The softstarter can normally be operated at a higher ambient temperature during operation if the rated current for the unit is derated according to the manufacturer's recommendation
nxï¿½ <5ï¿½ï¿½ your Ntï¿½ ie5ï¿½ï¿½ nal 8 and and use the Positive as a signal to the Stop/Start terminals
The softstarter does not require a main contactor but ABB recommends the use of one for emergency stop and/or trip of the overload relay. In some applications an MCCB can be used instead of the main contactor
Possibility the the motor is coasting to a stop and the Regeneration voltage is induced back into the load side of the softstarter. Check the SCR's without power to see if they are shorted.
The PST softstarter has three different voltages levels on it. The Three phase Motor voltage, the (120-220)Vac Supply voltage, and the 24Vdc control voltage. The 24Vdc can be supplied extenally by removing the jumper between terminal 8 & 9. Then put your Negative on Terminal 8 and and use the Positive as a signal to the Stop/Start terminals