Yes, you can use this relay in step relay (bistable) mode.
So every time you connect B1 and B2 inputs (for short time) using wall switch for example, relay toggles.
On Friday, December 9, 2016 at 10:43:23 AM UTC+1, Damian Gołda wrote:Yes, you can use this relay in step relay (bistable) mode.
So every time you connect B1 and B2 inputs (for short time) using wall switch for example, relay toggles.
Doesn't it mean that you need 2 processor outputs per relay?
I already installed Relpol's RM85 relays (12V, 360 ohm coil) in the DIN-rail sockets (RM85-2011-35-1012 relay + GZM80 socket + GZT80-0040 lever + M21P flyback diode), so I probably won't change anything (the relay power consumption is 0,5%-3% of the power of the lamp it switches).
W dniu piątek, 9 grudnia 2016 11:54:11 UTC+1 użytkownik Jarek Andrzejewski napisał:
On Friday, December 9, 2016 at 10:43:23 AM UTC+1, Damian Gołda wrote:Yes, you can use this relay in step relay (bistable) mode.
So every time you connect B1 and B2 inputs (for short time) using wall switch for example, relay toggles.
Doesn't it mean that you need 2 processor outputs per relay?
I don't know what voltage is on inputs B1 and B2 so the safest solution is to connect them by another relay controlled by one microcontroller output.
I already installed Relpol's RM85 relays (12V, 360 ohm coil) in the DIN-rail sockets (RM85-2011-35-1012 relay + GZM80 socket + GZT80-0040 lever + M21P flyback diode), so I probably won't change anything (the relay power consumption is 0,5%-3% of the power of the lamp it switches).
But RM85 is simple relay not step (bistable).
Here is example bistable relay with Set and Reset Inputs (first google result):
http://audiowind.oss-cn-hongkong.aliyuncs.com/new-pdf/D-1022AB-Series.pdf
You can control it by connecting inputs R/S, Set or Reset to GND. They have pull-up resistors 4k7 so you can connect them directly to microcontroller pin and activate by putting LOW on output.
Using two pins (Set and Reset) is better than one (R/S), because in case of any failure (for example power failure) you don't need to know in what state is step relay - just activate Set or Reset.
Another possibility is to use step/bistable relays powered from external, low voltage power supply, with additional inputs for set (on) and reset (off).
So you can simply put voltage (or connect to GND) to relay input to toggle, on or off relay, direct from your microcontroller.