MartinIT Posted July 1, 2016 Report Share Posted July 1, 2016 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 Link to comment Share on other sites More sharing options...
Kikis Posted July 2, 2016 Report Share Posted July 2, 2016 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. 1 1 Link to comment Share on other sites More sharing options...
Joseph_F Posted January 12 Report Share Posted January 12 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. Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted January 14 MVP 2023 Report Share Posted January 14 The relay closing and opening is considered one operation. Joe T. Link to comment Share on other sites More sharing options...
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