I need to control a 12V 100W peltier, with a CAL3300 temperature controler (like the shown in **broken link removed**), **broken link removed**
The internal relays from the CAL3300 supports only 2A, so I want to connect an external solid state relay (10A/28VDC DC 5V) the relay have 5 connectors, so could anybody teach me how to connect this relay with the CAL3300?.
In this link you can find a picture with an scheme shown in the CAL3300 and a picture of the relays.
It depends on the +5vdc input current requirement for the solid state relay. It it requires only 15ma or less you can wire the relay control input pins to pins 3 & 4 of the controller. You may have to enable the SSR drive output in the controller's setup and that information should be in the controller's documentation.
I am not sure abour the current requirements of the relay, do you know where I could find this information?. Concernig to the relay wiring, it have 5 connectors, I do not know who are the control inputs.
It depends on the +5vdc input current requirement for the solid state relay. It it requires only 15ma or less you can wire the relay control input pins to pins 3 & 4 of the controller. You may have to enable the SSR drive output in the controller's setup and that information should be in the controller's documentation.
I am not sure abour the current requirements of the relay, do you know where I could find this information?. Concernig to the relay wiring, it have 5 connectors, I do not know who are the control inputs.
This is not a solid state relay, it's a standard electromechanical SPDT relay. https://www.techman-usa.com/info/118.pdf Relay pin layout: third row down on the right.
But, that should work fine for you.
Wiring looking at the bottom of the relay (as shown on 118.pdf):
+5v power supply to pin-6 on the controller.
Left end of the relay coil to pin 5 on the controller.
Right end of the relay coil to 5v power supply common.
Peltier power supply (+) to bottom-center pin on the relay.
Peltier cell (+) lead to upper-left pin on the relay.
Peltier cell (-) lead to Peltier power supply common.