|
Animated Lighting has been setting up elaborate computer controlled light
displays for years. It's amazing how many tricks our team of professional
installers have gathered. Hours and sometimes days of frustration can be
avoided by following some of these simple suggestions.
Planning
- Never underestimate the amount of time required to plan and implement a
really great light display. You have to know where you're going or
you'll never know when you get there.
- Have a simple schematic of the overall display. Include dimensions
of the display and the type of lights you're using. Share this
information with everyone so there are no surprises.
- Have a detailed electrical schematic. Wiring on-the-fly might save
time in the beginning but troubleshooting a problem becomes incredibly
challenging. Draw a detailed schematic well ahead of time and commit
to sticking to it during the build.
Labeling
- Buy colored electrical tape and a waterproof marker.
- Create your own consistent scheme and label every wire (electrical,
data, EVERYTHING) at both ends. This can be a nuisance in the
beginning but vital when troubleshooting a problem.
Primary Power
- THE biggest challenge with any display is the primary electrical power
that feeds the light controllers.
- Place the primary electrical distribution panel as close to the light
display as possible. This is the job of a licensed electrician.
- If you have three phase power, use colored labels to identify which
circuit breakers are on each phase. Typically, every third breaker is
on the same phase. The electrician can assist with this.
- Have the electrician confirm beyond any shadow of a doubt three phase
power is being provided in the correct sequence (A-B-C)
- Confirm with a voltmeter every plug downstream from the circuit breaker
has115-130 volts AC or 220-240 volts AC.
GFCIs
- Ground Fault Circuit Interrupters (GFCIs) are required in many cases
with outdoor environments.
- Make sure only the best GFCI breakers are installed. In very wet
environments (lots of rain, etc.) the GFCI breakers will definitely do their
job and trip often. After many cycles, low cost breakers wear out and
won't reset, requiring an expensive electrician to replace them.
- In GFCI environments, make sure all electrical connectors are off the
ground as high as possible and shielded from the rain.
- Don't try to hermetically seal extension cord connections. Water
can often get trapped inside and constantly trip GFCI breakers.
Mounting the Hardware
- Animated Lighting controllers are typically provided in weatherproof
enclosures, not waterproof enclosures.
- Make sure the wire access holes of the enclosures are pointing down.
- Mount the enclosures at chest level if possible. Makes for very
easy maintenance and keeps dampness and critters out of the sensitive
electronics.
Fuses
- Animated Lighting controllers use standard 3AG 15 ampere fast acting
fuses. Do not use any other type of fuse. These fuses are
available at most hardware stores, electrical supply houses or home
improvement stores. Keep a few extra fuses in reserve.
- Fuses blow when there is too much current being consumed. This can
be caused from initially turning on a heavy load or the load being
consistently greater than the fuse rating. If this happens more than
once, reduce the electrical load.
Actual
Electrical Circuit Loads
-
Animated
Lighting Controllers are typically rated at 15-30--60 amps of switching
capacity. 15 amp controllers spread the load over all available
channels (typically 4 or 16). 30 amp controllers spread 15 amps over
eight control circuits and 60 amp controllers spread 15 amps over four
control circuits.
- Individual light circuits are designed to handle up to 10 amps maximum
of electrical load. Overloading individual circuits will cause bizarre
behavior.
- Invest in an electrical ammeter available at any electrical supply house
or home improvement store. If you don't feel comfortable using an
ammeter, purchase a simple-to-use
Kill-A-Watt device (picture to the right).
Extension Cords
- Use only 12-3 gauge or larger extension cords. Smaller
gauge cords can heat up and start fires under heavy loads.
- Make sure the light controllers are as close to the electrical
distribution panel as possible so you can use shorter electrical extension
cords if needed..
- No light controller should be more than 100 feet from the dedicated
circuit breakers where it connects to primary power.
- All primary power pigtails of a light controller should be on the same
electrical phase.
- In the USA, confirm primary voltage as it enters the controller is no
less than 112 VAC. If it is lower, use a larger gauge extension cord
to prevent any voltage drop,
- Don't use a 100 foot cord where a seven foot one will do. Lots of
wire under heavy loads produce significant voltage drops that create havoc
with the sensitive electronics.
- Label each end of the extension cord. This will simplify
troubleshooting.
- Keep the extension cords away from data cables connecting the
controllers. Fast switching times of the light circuits can cause EMI
issues radiating from the extension cords.
Communications between Monster Brain and/or Controllers
- If possible, use commercial grade CAT 5 communications cable with molded
connectors at each end. CAT 5E, CAT 6 or greater will work fine but is
not a requirement.
- If you build your own communication cables, use the standard LAN cable
color coding scheme:
.
- Communication data cables typically are eight conductor made up of four
twisted pair. Animated Lighting uses only the center twisted pair
(Blue - White/Blue) on pins 4 and 5 of the RJ-45 connector. Make sure
the connector is installed correctly, consistently and fully tested
before deployment. The twisted pair helps reduce electrical
interference.
- If you have more than 15 controllers daisy chained together with a
communications cable and you are having intermittent communications
problems, terminate the data cable connector on the last controller of the
chain (see controller schematic or call the factory).
- If a daisy chained controller cable exceeds 1000 feet and you experience
intermittent communication errors with the controllers, install a data
repeater (call the factory) either at the Monster Brain or mid span of the
daisy chain.
- The communications protocol used to
communicate across the data cables between controllers is based on RS-485.
If you just can't talk to a controller over the network, chances are the
commutation chip is bad (which happens when the data cables are shorted or
meet the untimely death from a bolt of lightning.) It's a small 8-pin
DIP chip that's socketed (for easy replacement) just under the RJ-45
connectors on the light controller boards
- There have been a couple of cases in
the field where the RS-485 chips need replacing because the hot and neutral
conductors were accidently swapped feeding the light controller board (this
creates an offset between "neutral" and ground that shouldn't be there). Use
an outlet tester to verify that your outlets are wired correctly and replace
the RS-485 chip..
- f you're running controllers on several
different electrical circuits and have trouble communicating with certain
controllers, try bringing power to a controller that won't locate using an
extension cord plugged into the same power as the PC and/or Monster Brain.
This will help eliminate ground offsets. In these cases using the
RS-485 data repeater available from Animated Lighting does an excellent job
isolating these voltage offsets.
Lights, Light Strings
and Fixture Challenges
- Outdoor spotlights pointing up are notorious for water leaking into the
socket. Depending on the conditions, a short circuit might occur and
blow out the electronics in the light controller. If it is an LED
based light that produces little or no heat, simply put a plastic bag over
the entire fixture to solve the problem. With incandescent lights, use
some sort of physical shield to divert the rainwater away from the socket.
- Low-cost LED light strings are not always designed to dim or can be very
inconsistent when responding to ramps and fades. In many cases adding
an incandescent C7 bulb to the circuit will provide enough of an electrical
load to smooth things out.
- C7/C9 replacement LED bulbs are not always designed to dim. Either
replace the bulbs with ones rated for dimming or remove all dimming
characteristics from your light show program.
Verbal
Communications when Troubleshooting with the Factory
- Be very specific when talking to the factory about problems you might be
having. They will ask for specifics about which circuit is not
working, how much power does the circuit consume, etc. Gathering this
information early will help resolve the problem much faster.
|