B-4
OPERATION
adjustment of the fan motor VFD parameters.
A solid red alarm light indicates a problem was detected over the
cable connection from the alarm fault relay output on the VFD.
Reset button on the control triggers a pulsing of the reset input on
the VFD. If this fails to clear the alarm qualified maintenance
personal will have to review the motors VFD for messages related
to the fault..
SMARTWIRE DEVICE LEARNING
FIGURE B.3
Device Learning: With everything connected (including the
external I/O packs to the SWD4) press and hold down the
“Config.” button on the easy806-DC-SWD for at least 2 seconds.
This should start the learning process where each module is
matched for its type and serial number codes. If the codes do not
match errors will appear. The ideal setting is to have solid green
LED lights on all Smartwire components and the “POW”, “Config”
and “SWD” green LEDs illuminated above the "Config." button.
NOTE: “NET” indicates network communication activity and
normally flashes on and off.
STARTUP
The following points are to be checked and implemented before
the filter unit is put into operation:
Electricity
- Check for connection to a proper three phase line
voltage connection for optimal performance. The VFD and Motor
will be rated for the applied line voltage to the unit. Ensure supply
lines to the unit are properly fused and all local electrical codes
are followed.
Pneumatics
- Check that the compressed air is connected.
Compressed air should be clean, dry and oil free and at a
maximum pressure of 87 psi (6 bar).
SET POINTS
Default values enable basic unit operation. Each value should be
given consideration for optimized operation, and can be adjusted
with continued use and experience using the equipment. Consult
Lincoln Electric Field Service to shorten the learning curve. Of vital
importance is the initial PID value setting for the airflow. This
setting determines the unit's cubic feet per minute (cfm) the fan
maintains as it monitors the duct pressure, and this ramps up fan
speed as the filter loads and creates a higher differential pressure
across it but maintaining system air cfm up to the limit of the fans
maximum speed.
The Lincoln Electric L series Prism unit has a separate VFD in an
enclosure for fan motor speed control. The setting for airflow is a
parameter contained within the VFD, start signals for the fan
motor to the VFD come from the cable to the main control cabinet.
After the airflow is set with the PID setting the system will
automatically adjust its self.
PRISM
®
Summary of Contents for Prism 4
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