Daktronics VANGUARD VL-3500 Series, Руководство пользователя

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Power Installation
8
Internal Power Termination
Terminating single-phase power to the
internal power termination panel:
1. Open the display as explained in the
Accessing the Internal Components
(p.11) section and locate the
power termination panel.
2. Route the cable through conduit to
the back of the display. Use the
3
/
4
"
knockout for access, being careful
not to damage internal components.
3. Connect the neutral wire to the
neutral lug and the live wires to the
Line 1 and Line 2 lugs.
4. The ground wire connects to the
grounding bus bar. Refer to Figure 5
for an example.
Power Routing in the
Display
A general power routing, as shown in
Figure 6 , can be summarized as follows:
1. Power terminates internally to the
power termination panel (either
directly or via the rear-mounted
J-box).
2. Power routes through the
circuit breaker(s) in the
power termination panel.
3. Power is routed through
filters to the power supplies
which provide power to the
modules.
4. Power travels through
the transformer which
steps down power to the
appropriate voltage for
the controller (or MLC in a
sectional display).
5. Power is also routed through
a filter to the thermostat
and the fans. The fans are
activated by either the relay
or thermostat.
Note: Power supplies
are set to the
proper voltage by
the modules.
Figure 5: Single-phase 6-breaker Domestic Panel
Figure 6: Power Flow Summary