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ViewPoint Touch Screen Installation Instructions
3. Installation
3.1
Power Supply Installation
The power supply and ethernet switch should be
mounted with the provided enclosure and located in
the parlor office near the Smart Dairy Controller. The
range for proper operation is 24VDC+/- 6.0 VDC,
(20-28 VDC). The DC common terminal of the DC
supply must be connected to earth ground, (PE) at
the DC power supply for proper operation.
To allow for voltage drops in the wiring, the DC pow-
er supplies should be adjusted to 25.5 VDC, without
any loads connected.
-NOTICE----------------------------
Do not apply DC power to the touch screen served
by the power supply until all connections have been
made between the power supply and the touch
screen. If power is applied to the touch screen before
all connections have been made, the power supply
may become overloaded, causing a circuit breaker
to trip or other power supply damage to result or
possibly causing damage to products served by the
power supply.
-NOTICE---------------------------
Main AC power supplied to DC supply enclosure may
utilize provided power cord, or for aesthetics, route
through conduit.
3.2
Ethernet Switch Installation
•
Mount Ethernet switch next to DC power
supply.
•
Wire connections to the power supply using
the following figures.
•
Run the power and Ethernet cables from the
power supply box to the mounting location
of the touch screen arm.
•
Use the supplied 2 conductor power cable PN
3559265.
•
Extra strain reliefs have been provided to ac-
commodate entry to the supply enclosure.
•
Use the 1/2” ID strain relief for the Ethernet
cable entry. PN 8506904 vinyl hose should
be slit open and inserted over Ethernet
cable. Insert Ethernet cable and vinyl hose
through strain relief, and hand tighten.
The AC input of the DC supply should have transient
(lightning) protection installed. The protection de-
vice should be installed as close as possible to the
DC power supply.
Figure 1: 24 VDC Power Supply
