Page 14 of 72
14
Installing the Gateway
LAARS ProtoNode Start-up Guide
14
3.5
Power-Up ProtoNode
Check power requirements in the table below:
Power Requirement for ProtoNode External Gateway
Current Draw Type
ProtoNode Family
12VDC
24VDC/AC
FPC
–
N54 (Typical)
250mA
125mA
NOTE:
These values are ‘nominal’ and a safety margin should be added to the power supply of
the host system. A safety margin of 25% is recommended.
Figure 9: Required Current Draw for the ProtoNode
Apply power to the ProtoNode as shown below in
Figure 10
.
Ensure that the power supply used complies
with the specifications provided in
Section
12
.
•
The ProtoNode accepts 9-30VDC or 24VAC on pins L+ and N-.
•
Frame GND should be connected.
Power to
ProtoNode
ProtoNode
Pin Label
Pin
Assignment
Power In (+)
L +
V +
Power In (-)
N -
V -
Frame Ground
FG
FRAME GND
Figure 10: Power Connections
LAARS Heating Systems
20
Industrial Way, Rochester, NH, USA 03867
•
(800) 900-9276
•
www.Laars.com
