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SECTION 7: OPERATION
PLC (Programmable Logic Control) Power
Supply
Operation
The operation of the Bioshield® Commercial UV
Sterilizer may only be carried out by authorized
personnel. The personnel responsible for the
operation of this system must read and understand
this Section, Section 2 (Health & Safety Precautions),
and strictly comply with all relevant rules for accident
prevention and local health and safety regulations.
Check all relevant safety measures before you switch
on the UV system.
Operating Modes
Generally, the UV system is operated in "LOCAL'
mode. An optional, discrete input circuit is provided
to allow for either "LOCAL/REMOTE" or "LOCAL'
mode. If this option has been ordered there are two
terminal blocks (brown) located inside the Power
Supply Enclosure. The UV system is supplied with
both the brown terminals jumped together as the
default "ON" setting. To operate the UV system in
the "REMOTE" mode, the "Factory-Installed Jumper"
must be removed. Both the brown terminals need to
be wired to an external switch (not included) capable
of handling 120/230-volt AC @ 1-amp.
PLC
Enclosure
Features
1. PLC Power Enclosure
2. 3.5" Color Touch-Screen
3. Shortcut Buttons (only available on Advanced PLC)
4. External On/Off Switch
5. Main Power Cable
6. Temperature Sensor
7. UV Intensity Sensor
8. Lamp Field Safety Cover Cable
9. Lamp/Power Cables
PLC Control Descriptions
Total Operating Hours Meter
The measurement is in 1-hour increments and may
be reset by the operator via the Alarms Tab.
Lamp Status & Lamp Life Monitor
An inactive lamp will trigger an alarm which can
be identified in the Alarms Tab. The alarm may be
reset but will continue to activate every twenty-four
(24) hours until the lamp is replaced and the SETUP
individual lamp reset is completed.
Power Supply Enclosure Temperature
Monitor
The temperature monitor is used to protect the
electronics within the UV system panel from
overheating. The enclosure temperature alarm will
be triggered above 120° F and will shut down the
lamp field. The PLC must be powered off to reset the
system and to restore lamp field operation.
UV Vessel Water Temperature Monitor
The UV Vessel Water Temperature Monitor is used
to protect the vessel from overheating due to a no
or low-flow condition. The temperature alarm will be
triggered above 140°F and will shut down the lamp
field. The PLC must be powered off to reset the
system and to restore lamp field operation.
BIOSHIELD
Commercial UV Sterilizer Installation and User's Guide
®
19
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