2.4
Interlocks
Description
The interlocks work in the same way for both the stand-alone XDUO 2500 Mixer and for
a FlexFactory connected system.
Result
Condition
Interlocks stop the agitators, pH control, and
vessel temperature control.
The vessel weight is < 520 kg.
1
•
Interlocks stop the pumps.
•
The agitators and the vessel temperature
control stay active.
The pumps start again in the previously active
mode, when the vessel weight has been below
the interlock limit for 30 seconds.
Vessel weight is > 2525 kg.
1
•
Interlocks stop the pumps.
•
The temperature and the pH control loops
go into Manual mode.
•
The TCU setpoint is set to the vessel temper-
ature PV value.
The agitators are shut off when
temperature control or pH control
is running.
2
1
The weight interlock is available only if XDUO 2500 Mixer has load cells.
2
The temperature and pH setpoints are stored. When the agitator is turned on again, these
values are held until the control loops are restarted.
Interlock status
The interlock status is shown in the local control software as follows:
Description
Interlock button
The interlock is active.
The interlock is not active.
40
Xcellerex XDUO 2500 Mixer Operating Instructions 29146667 AH
2 Safety instructions
2.4 Interlocks
