• The alarm beacon flashes.
• The alarm message is displayed in the top right corner of the
screen as a warning triangle.
• The alarm message is displayed as text when is
pressed in the navigation bar.
If a dosing unit does not reach the set weight, production does not
continue. The metering attempt is repeated several times (number of
attempts can be set). If the required value is not reached, the alarm
beacon is activated. The behavior of the controller in the event of an
error can be specified in the configuration.
Warn
: Alarm message is displayed, but unit continues to run.
------
: No alarm message, unit continues to run without message.
Stop
: Alarm message is displayed, unit is stopped.
If a unit stop is set, the triggering alarm must be acknowledged. The alarm
message remains visible as long as the error is pending in the controller.
Handling alarm messages
1 Press for an overview of all alarm messages.
2 Press to clear alarms.
3
Silences an active alarm but does not clear it.
TrueBlend
Gravimetric Blender
SB1 Control
Software Version 2.9.1
Corporate Office: 724.584.5500
Instant Access 24/7 (Parts and Service): 800.458.1960
Parts and Service: 814.437.6861 • www.conairgroup.com
Cleaning the mixer
CAUTION: Mix blade hazard
There are two hazards associated with the mix blades. First, the blades are driven with substantial torque. Never place your hand in the
mix chamber unless power is completely disconnected. Second, the mix blades may become razor sharp. Always be careful when
touching or cleaning these blades. Check for sharp edges frequently. Replace blade if a hazard exists.
WARNING:
This card provides only basic troubleshooting and maintenance information.
Users must be familiar with all safety information and procedures described in the TrueBlend User Guide.
Signaling
alarm message
1
Open the “quick-release” locks of the mixing chamber end cover and remove it.
2
Once the material compartment has been cleaned, remove the deflector.
This will enable you to clean the mixing chamber and
the shut off valve at the bottom of the chamber. You may need to run the mixing agitator for a short time to fully evacuate the mixing
chamber. If not necessary, skip to step 6.
3 Close the mix chamber access door.
4 Restore power by closing the main disconnect switch.
5 Manually run the mixer for a short time to lower the material level.
Refer to “Checking functions in manual mode” to see how to
run the mixer manually.
6 If applicable, open the discharge slide gate at the bottom of the mix chamber.
7 Open the mix chamber access door.
The safety switch will prevent operation of the mixer with the door open.
>>>
TIP:
If using the optional drain chute with safety interlock, open the front access door, remove the weigh bin, and position the chute
to direct material into a bucket or drum rather than the mix chamber.
8
In the “Overview” screen, press the TrueBlend Icon. The TrueBlend status screen will open.
9 Press the button to open the “Settings” screen.
10 Press to switch to “manual mode.”
11 Press on the appropriate material hopper icon to open the respective vertical valve.
Removing material
The dispense valve unit is opened and the material runs out of the material hopper through the optional deflector to the collection receptacle.
1 Discharge the material completely
and clean the material hopper from the top (use the compressed air nozzle supplied if necessary.)
2 Press on the appropriate material hopper icon again to close the dosing unit.
3 Remove the optional drain chute.
(If equipped.)
Shutting off in emergency
1
Switch the main switch to off.
The power supply is interrupted. If the cone valve was open, it is closed. All other machine movement is stopped
immediately. The batch is not finished. The main switch can also be locked manually with a lock.
Restarting after Emergency stop
1
Switch the main switch to on.
If switching on within two minutes of stop, the unit continues the interrupted process. This function is used to keep down-
time in the event of a short power interruption as short as possible. The screen that was last open before switching off or power failure is opened. If switch-
ing on after more than two minutes, the internal functions are completely reset. The start screen will appear.
>>>
Note:
If the metering cycle was interrupted, the material in the weigh bin must be removed manually before restarting. See step 2 if necessary. This will
prevent an incorrect mix ratio.
2
Remove the weigh bin carefully
to prevent damage to the load cell and empty it. (Only necessary if the metering cycle was interrupted.)
Quick Card
QCB003-0512
