CircuitWerkes Sicon-8, Руководство по эксплуатации и техническому обслуживанию, Страница: 10 / 32

Sicon-8 Technical Manual CircuitWerkes, Inc.
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CAUTION: While the Sicon-8's relays are physically capable of handling 250 VAC, this practice is very
dangerous and should never be attempted. The terminal strips are not designed to shield humans
from potentially dangerous Voltages. Contact with high Voltages can cause serious injury or death.
The maximum recommended Voltage for the Sicon-8 is 30V. Switching of high voltages should only
be done externally and in a manner that isolates the voltages from accidental contact with people.
Surge Protection
Although the Sicon-8 has built-in resistance to voltage changes, we recommend that you use a
power surge protector or line conditioner on the incoming AC line. Lightning strikes and other high
surges in voltage levels will damage your Sicon-8 and connected equipment if it is not properly
protected.
UPS Standby Power System
We recommend that you connect your Sicon-8 to a battery backup system. The Sicon-8 will then be
able to notify you of the power outage by phone, pager, or data, depending on the
configuration of your system.
Connecting your Sicon-8 to other equipment 6
The Sicon-8 is equipped with 16 relays organized in 8 channels to provide you with control over your
transmitter site equipment. Each channel consists of a raise/on relay and a lower/off relay. These raise
relays are used to turn equipment on or to raise a given parameter, like power, for instance. Similarly,
the lower relays are usually used to turn equipment off or to reduce the specified parameter. These
relays can be used to control any equipment in any way, but it is recommended, for the sake of simplicity,
that equipment is turned on or parameters increased using the raise relays and equipment turned off or
parameters lowered with the lower relays.
The first six channels consist of heavy-duty SPDT relays, rated at 3 A @ 30 VDC or 3 A @ 250 VAC,
which operate in momentary mode. Although these relays are rated to handle up to 250 VAC, it is
forbidden to do so due to the dangers associated with exposing such high voltages. Hazardous
voltages must be switched with slave relays or equivalent in an isolated enclosure that prevents
anyone from accidentally making contact with the high voltage. Three contacts are made available
on the back panel for each of these relays, the common line the normally-open and the normally-closed
contact.
Channels 7 and 8 each consist of two DPDT relays (one for raise/on and one for lower/off) which
can operate in momentary or latching mode. These relays can tolerate up to 1 A @ 30 VDC or 0.3 A
@ 125 VAC ( again, connecting high voltages to the Sicon-8 is dangerous and must not be done .)
Since these relays may operate in the latching mode, they are ideal for use as a simple, stereo,
audio switcher. These relays can also be operated in momentary mode, so they can be used as
standard control outputs, as well. All six contacts of each relay are brought out on the back panel
barrier strip, so any and all of their contacts may be utilized.
Once your equipment has been connected to the Sicon-8, insert the push-on connector into the
back-panel connector on the Sicon-8, with the set screws facing up.
WARNING! Double check that you have connected your equipment to the correct Sicon-8 relays.
Count the screw terminals on your depluggable connector to be sure that the wires are in the
correct positions and that you have inserted the connector into the right connector bank. It is
recommended that you only unplug one connector at a time to avoid accidentally swapping them.
Incorrect wiring can cause command failure or damage to your equipment.