ABB UMC100.3 Standalone Overload Relay

[@Reptiloid-85]

Please tell me that in order for the electric motor to work, do you need to constantly send a signal to the digital inputs DI4 or DI3, or is a pulse signal from the button sufficient for it to work?

[@vuongpilot5808]

Hi Sir, I have CTs with ratio 300:1A, Can I use CTs for project with UMC100.3?

[@ambassadorkees]

Yes you can. See 4:14 onwards: Set CT ratio to 300, i.e. Current factor 30.000%. Take note that secondary wiring must be in correct phase direction. If wrong, you get negative power or wrong rotation direction.

[@Raja8809-z2q]

Sir what is check back settings 1.current & Simulation in Umc 100 relay.

[@botniaelman4092]

Hi Reshav, check back is a function checking whether current is running when it's supposed to. Does that answer your question?

[@arifpathan7787]

WHAT DIFFERENCE BETWEEN UMC 100 VS NUMERICAL RELAY

[@botniaelman4092]

UMC's first task is advanced motor protection based on exact current measuring. Programmable functions are an addition. A numerical relay typically won't have out-of-the-box most controller functions like DOL, REVERSE, Actuator etc function Blocks that's are 100% integrated with analogue measurements, over- under- and unbalanced load protections, restart inhibit options based on # starts/hr or heat dissipation modelling. And a lot more.

[@hiloufalakhdar1065]

I have a problem in UMC100 ---The error appears. Error 17:application ....Anyone help me?

[@josemanuelcastellanosgarci9353]

Dónde puedo conseguir el software

[@botniaelman4092]

Hi Jose, in Standalone no software is needed. If you have the need for a larger installation and especcially custom logic, than the required software is availble on ABB Marketplace: Field Information Manager or FIM UMC Edition.