Simco-Ion scorpION3, User Manual

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scorpION3 5200969 Rev 4 13
2.6 MMI (Man Machine Interface)
Adjustments to ion balance and ion output can be made to the
scorpION3 bar system by using the hand-held MMI. The MMI
features a 4-line LCD display for setting the bar parameters and
monitoring its operation. The MMI uses an infrared transceiver for
two-way communication with the bar in IR Mode. The MMI also has
RJ-11 connectors that enable it to be connected inline with the bar
system chain for two-way communication by hardwired RS-485 in
Wired Mode.
Infrared communication is established by
pointing the MMI at the IR transceiver on the
bar. The IR transceivers must be aligned to
communicate; the transmission/reception cone
is 15º. Communication can typically take place
at up to 3 meters (10 feet). Successful two-way
communication is indicated by flashing green
indicators on the bar and MMI. If the MMI
indicator flashes red, the MMI was unable to
establish two-way communication and
realignment of the IR transceivers may be
required.
The green indicator on the MMI is also used to indicate if the
selected bar is operating normally, with no fault alarms. If the red
indicator on the MMI is lit, the selected bar is in fault alarm.
Hardwired communication is established by using 6-conductor
modular cable with RJ-11 connectors to insert the MMI at any point
in the chain. Hardwired communication would typically be used
where access to the IR transceiver on the bar was limited or difficult.
Used in this fashion, the MMI taps into the RS-485 communication
lines on the chain and provides feed-thru for the 24 VDC power. To
enable the hardwired communication, it is necessary to turn the
MMI power switch off, connect the MMI to the active bar chain, and
then turn the MMI power switch on. The MMI will sense the power
on the chain and activate the hardwired communication.