Wascomat Clarus Control SU620 - CPU Card A1

85
Programme unit
3
CPU card A1
The CPU card controls all functions of the washing machine using various
control programmes in the CPU card memory. The CPU card communi-
cates with the I/O card, display card and motor controller using a serial
interface.
The following functions are controlled:
• TheCPUcardcontrolsthewatervalves,detergentsupply,drainand
heating using one or two I/O cards. Depending on the number of func-
tions to be controlled, the number of I/O cards varies between different
machines.
• TheCPUcardcontrolsthealphanumericdisplaywindowonthedisplay
card.
• TheCPUcardcontrolsthemotorviaamotorcontroller.
To obtain information about the various operations of the washing machi-
ne, the following inputs are used:
• TheCPUcardhasinputsfore.g.,temperaturesensors.
• TheCPUcardreceivesinformationfromtheI/Ocardinputsaboutdoor
locking state and any external switches (e.g., Start/Stop and Pause).
• TheCPUcardhasapressuresensortowhichahoseformeasuringthe
water level in the drum can be connected.
• TheCPUcardreceivesinformationfromthedisplaycardaboutwhich
buttons were pressed.
Note that the CPU card does not contain any removable memory chips.
If the CPU card needs replacement, the correct software for the machine
needs to be programmed in the new card using a laptop with special soft-
ware. See the section “Replacing the CPU card”. Personalised washing
programmes can be transferred using a Smart card.