6HBWDOG1
Heartbeat Relay
Connect
.Monitor
.
Control
.
4 Power Requirements
Modules may be powered from any suitable DC power source of 10 to 30 VDC. Most frequently, EtherTRAK-2 I/O
modules are powered from a +24 VDC industrial rated power supply such as the Sixnet ET-PS-024-02 (2 Amp) or ST-PS-
024-05 (5 Amp).
5 Module Wiring / Screw Terminal Assignments
On the face of the Heartbeat Watchdog Module is a pluggable screw terminal block with retaining screws which secure
the block to the module. The connections on the screw terminals are described in the diagram below.
IN+
IN-
N.C.
COM
N.O.
V+
GND
Heartbeat Input:
Isolated 10-30VDC Heartbeat Signal Input
Screws
Form C Relay Output:
Relay will connect N.O. to COM when
Heartbeat signal is valid. N.C. to COM will connect if
Heartbeat is lost.
Power Input:
10-30VDC power input to module power supply.
Screw Terminal Assignments
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