Quark-elec Manual
https://www.quark-elec.com
11 of 28
2018
V3
9. Relays
The G031 has three digital output relays for connection to the equipment to be controlled. The relays can
be setup in normal open and normal closed positions. Depending on the relay setup you choose will
determine how the G031 operates. For example a cooling setup must be setup using Normal closed. For
a heating setup it must be setup in normal open.
9.1. Relay wiring
Normal open position
– if common and normal open are wired then relay 1 will be off when powered
up. To activate relay 1 either a message or a command must be received from the user or from input
1. This activates the relay and closes the circuit turning on the output of relay1. Use this method for
heating setup
Normal closed position
– if common and normal closed are wired then relay 1 will be active while
the G031 is powered up. This can be useful for fail safe systems where the power going off in the
G031 will close relay 1 and activate the output of relay 1. Use this method for cooling setup.
It is important to understand that relays wired in ‘normal closed’ position will operate in the
opposite way than expected. In this setup ‘Relay OFF’ in the app/SMS will power the equipment
ON. This needs to be taken into account when setting up and designing the system.
9.2. Daily timer setting
Daily timer settings are for Relays 1 and 2. They support a daily timer function to control the actions of
the output. This is useful for turning the relays on and off without having to message the device.
The relays will switch to ON/OFF states according to the timer settings. These two relays also support
two working modes, self-lock and latching control.
