Hi,

I am looking for a fairly simple 12V DIN mounted timer module that is capable of a switching frequency of over 10Hz for turning a digital PLC output into a fixed PWM signal. Most of the units I find online seem to be regular relay units that won't switch at the required frequency, does anyone know of a solid state relay type unit that is rated for continual switching of about a 500mA@12V load?

 

I'm not clear on why you call it a 'timer'. The PLC does the on/off timing, does not it not?

Don't you need a solid state relay (SSR) that will switch a 12Vdc 1/2A load at 10Hz, right?

Here's an Amazon SSR and the heat sink (separate) looks like it can mount on a DIN rail.
https://www.amazon.com/SSR-60DD-3-3...pY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1

 

I'm not clear on why you call it a 'timer'. The PLC does the on/off timing, does not it not?

Don't you need a solid state relay (SSR) that will switch a 12Vdc 1/2A load at 10Hz, right?

Here's an Amazon SSR and the heat sink (separate) looks like it can mount on a DIN rail.
https://www.amazon.com/SSR-60DD-3-32VDC-Output-5-240VDC-Plastic/dp/B08GNSPCND/ref=sxin_16_pa_sp_search_thematic_sspa?content-id=amzn1.sym.9efcc700-d635-445c-9d53-884ea58d759c:amzn1.sym.9efcc700-d635-445c-9d53-884ea58d759c&cv_ct_cx=Relays&keywords=Relays&pd_rd_i=B09H7B8P6N&pd_rd_r=966e6664-927d-417f-b80d-896a53c7d417&pd_rd_w=AMJGw&pd_rd_wg=SUzlO&pf_rd_p=9efcc700-d635-445c-9d53-884ea58d759c&pf_rd_r=KD73HMND73NR0GWA6M86&pid=AJGsL0n&qid=1685465006&s=industrial&sbo=RZvfv//HxDF+O5021pAnSA==&sr=1-1-2b34d040-5c83-4b7f-ba01-15975dfb8828-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEySFZRMlQ3SUxEUjZZJmVuY3J5cHRlZElkPUEwMDU3MzY0MjEyMEVDM0hFRUFWSiZlbmNyeXB0ZWRBZElkPUEwNDM0NDQwMVNRRzdQOTg5REc1ViZ3aWRnZXROYW1lPXNwX3NlYXJjaF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1

I have a relay output based PLC (Siemens LOGO!) so it's output switching rate is limited to about a 1Hz rate I believe and limited number of lifetime switches. By timer I was talking about some sort of device capable of outputting a square wave pulsed output of 10Hz+ from a constant input signal