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b) Manual mode pause condition: if at the moment of alarm, the mixer is in manual mode.
c) Automatic mode idle condition: if at the moment of alarm, the mixer is idled in
automatic mode.
d) Recipe run pause condition: if at the moment of alarm, the mixer is in automatic mode.
e) Locked mode or local main menu screen (depending on settings on remote panel): if at
the moment of alarm generating the mixer is in locked mode.
Three types of failure can stop the current job.
Manual E-Stop
9.8.1.
When an operator presses the E-Stop button on the control panel, the motor rotation immediately
stops and the alarm appears on the screen. To reset the unit, follow the following steps:
1. Release the E-stop button by pulling it until it clicks.
2. Press the ALARM button. The failure detection screen will then open.
3. On the failure detection screen identify the E-stop failure in the blinking bullet.
Note: the date and time of the failure event is indicated on this screen.
4. Press the RESET button to return the unit to operation.
Speed Off-Range
9.8.2.
If the measured RPM deviates from speed set point outside the +/-5 RPM limits for more than 60
sec. the speed control may be functioning improperly. When this occurs, rotation is stopped and
the ALARM appears on the screen. The red alarm light and the alarm sound is on as well. The
operator should do the following steps:
1. Press the ALARM button. The failure detection screen will then open.
2. On the failure detection screen identify the speed off-range failure in the blinking bullet.
Note: the date and time of the failure event is indicated on this screen.
3. Press the RESET button to return the unit to operation.
IMPORTANT:
The speed off-range alarm is not generated in remote mode or in locked mode of
operation. In this case current speed and set point are controlled externally.
Motor Failure
9.8.3.
If the mixer’s drive unit experiences an error, it signals the PLC. The mixer then stops rotation
and indicates ALARM through the screen, alarm light and sound. The operator should do the
following steps:
1. Press the ALARM button. The failure detection screen will then open.
2. On the failure detection screen identify the motor failure in the blinking bullet. Note: the
date and time of the failure event is indicated on this screen.
3. Press the RESET button to return the unit to operation. The screen will open with a
request to turn off power to reset the failure signal.
4. Turn the unit off and then turn it back on.
