Maintenance 61
Figure 3-5
Expansion module in air control box (300 series)
The WITTKE RETRO FL
TM
Control System
The WITTKE RETRO FL
TM
is controlled by a logic control system called IQAN® MDM. This system
uses 3 XT2 modules that read inputs and distribute outputs.
The W
ITTKE RETRO FL
TM
system is an “electric over air over hydraulic system”, which is controlled
by the MDM.
Communications between the various components of the IQAN® MDM system are performed via
the CAN-based bus.
NOTE: CAN is an acronym for Controller Area Network.
MDM stands for Master Display Module.
MDM Operations
In order for the MDM screen to work (see Figure 3-6), the ignition switch must be in the
“ON”position.
Figure 3-6
MDM screen
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