Life expectancy UID - 0016R

[MartinIT]

I have problem with output. Life expectancy for UID - 0016R is 100k. How many times can I switch the relay output in this unit?

Thanks

 

Martin

UID

 

0016R

[Kikis]

Hello MartinIT,

 

Unitronics spec sheet for UID - 0016R gives a life expectancy of 100K operations.

Maximum switching current is 2A for resistive load.

 

To prevent wearing out the outputs, Its strongly recommended to:

- Install a flyback diode across a DC inductive load

- Install an R-C suppressor across AC inductive load

 

Even miniature general purpose relays, such as Omron G2R series, are producing big voltage spikes when turned off which can seriously damage your output. 

 

In general, when output switching frequency is high, use transistor output instead.

[Joseph_F]

Do "Operations" constitute every state change? Is a relay opening and a relay closing two separate operations? Is this for the card, or per terminal? Just trying to make sure I understand, thank you. 

[Joe Tauser]

The relay closing and opening is considered one operation.

Joe T.