Wascomat Clarus Control SU620 - Page 77

77
X172
208 V
Supply voltage
X178
Short-
circuit
connector
5227
Transformer T 10
230 V
240 V
480 V
1,25 A
Level guard B2
5231
Transformer T 10
X278
4
5
Control unit
4
5
• I/OcardsA11andA12
Most smaller machines have only one card:
A11. The I/O cards are controlled by the CPU
card via a serial interface. The I/O cards fea-
ture outputs, which, via the communication
card in the rear control unit, control various
machine functions, such as the water valves,
heating connection and drain valve. The cards
also have inputs for emergency stop and door
lock.
The programme unit is described in detail in sec-
tion Programme unit.
Level guard B2
Control of the water level and turning of the
drum are controlled with a backup guard, to en-
sure that the door will not open with water in the
drum or when the drum rotates.
Apart from the level guard on the CPU card,
there is a level guard B2, connected to the door
lock control A31. This card controls door locking
action as well as the level and drum rpm speed.
Transformer T10
The low voltage transformer supplying power to
the various cards operates on DC power.
Usingtheshort-circuitconnectorsonthePCB,
the transformer can be switched to one of four
different voltage supplies.