3D TRASAR
5500 - Installation & Operation Manual
521-OM0108.88
Copyright
2009 Nalco Company
9-2
Technical Help
(630) 305-CHEM
Problem
Possible Cause(s)
Solution
The pellet feeder is
not feeding pellets.
The pellet feeder is not properly connected to
the controller (power and/or communication).
The green light on the feeder will be off if the
power wires are not properly connected. An
alarm will be listed in the activ e alarms on the
display if the communication wires are not
properly connected.
Check all connecti ons and replace
cable if damaged. Ensure power
switch is in "ON" position.
The controller is not correctly configured to
operate the pellet feeder.
Check the configuration to be sure that
(a) 3D Bio-Control is selected as the
oxidizing biocide control method, and
(b) a solid product is selected as the
bio-reporter.
A pellet feeder error is active, during which
pellets will not be fed. The green light on the
feeder will be blinking if it is an error state.
Check the active alarms and resolve
the alarm condition(s) as needed.
The first 3D Bio-Control decision interval has
not yet been reached.
On power up, the first pellet feed
happens at the end of the fi rst decision
interval, which may take up to 25
minutes.
The bio-reporter level is above the set poi nt
and control range.
No pellets are required.
There is a No Flow Alarm, during which pellets
will not be fed. In this case, the display will still
indicate that the relay is off.
Check the active alarms and i ncrease
flow if needed.
There is an Interlock Alarm, during which pellets
will not be fed. In this case, the display will
indicate that the relay is off.
Check the active alarms and be sure
the Interlock cable is connected
properly (or jumper, if Interlock is not
used).
A calibration is underway, during which pellets
will not be fed.
Complete or cancel the calibration
procedure.
The bio-reporter is in Manual Off mode.
Using the keypad Menu item Manual
Relay Control, return the bi o-reporter to
Auto mode.
The oxidizing biocide is in a failsafe mode due
to an alarm conditi on.
Check the active alarms and resolve
the alarm condition(s) as needed.
