View and download honeywell th8320r1003 installation manual online. In order for the daq to read it it needs to have a defined voltage either a pull up to the positive supply logic 1 or pull down resistors to the negative supply logic 0 or an additional io.
Dry contacts using the danfoss erc 213.
Dry contact wiring diagram. Usually some other contacts or devices have the job of starting or stopping the primary. Th8320r1003 thermostat pdf manual download. With a dry contact the source originates from the controlled device goes through the contact back to the device.
The connection from the paging system or tone generator would connect directly to ckt 1a and ckt 1b. No wiring exists from ac return to ckt 1b. How to identify wet vs.
An example of this would be an aux contact on a motor contactor. R specification submittal page job name. Dry contact may mean any of the following in electronics.
No jumper exists from ckt 1a to ac in. A simple circuit diagram either of the two start buttons will close the contactor either of the stop buttons will open the contactor note that one one of the contactor acts as a switch for the start button. You would source a voltage from a plc or alarm panel through the aux dry contact back to plc or alarm panel for a run status.
Visionpro 8000 with redlink. A dry contact is the synonym of volt free it is not wetted by a voltage source dry contact can refer to a secondary set of contacts of a relay circuit which does not make or break the primary current being controlled by the relay. Qs system qse io control interface 369374d 5 02 02 2018 terminal locations 4321 relay 1 nc relay 1 no relay 1 2 common relay 2 nc relay 2 no relay 3 nc relay 3 no relay 3 4 common relay 4 nc relay 4 no relay 5 nc relay 5 no relay 5 common input 1 input 2 input 3 input 4 input 5 common.
The dry contact closure wiring diagram is similar to other wiring diagrams. Usually daqs have a reference voltage output you can use. Dry contact means no energy is supplied to the contacts completely passive and isolated.
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