User's Manual

AirWorks AWK-4121 User’s Manual Introduction
Relay (Digital Output)
The AWK-4121 has one relay output, which consists of the 2 contacts for the 8-pin M12 connector
on the bottom panel, as shown below. These relay contacts forward system failure and
user-configured events.
The two wires attached to the relay contacts form an open circuit when a user-configured event is
triggered. If a user-configured event does not occur, the relay circuit will remain closed. For safety
reason, the relay circuit is kept open when the AWK-4121 is not powered.
The AWK-4121’s relay status is summarized as follows:
Relay Status
Power off Power on
No Event
CLOSED
Triggered
OPEN
OPEN
Digital Inputs and Relay-out Pin Assignment (8-pin M12 connector)
PIN 1 2 3 4 5 6 7 8
Function DOUT_I DOUT_O DI0+ DI0- DI1+ DI1- reserved reserved
1-7