Laundrylux CROSSOVER 2.0 Series, Training Manual

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Power Controller/Inverter (U1)
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Fig 2.7 U1 Power Controller/Inverter
The power module/inverter U1 is located on the rear wall of the machine. Connections include:
power and INTERLOCK, display board, drum motor, water valves, pump, doorlock, and
external liquid supply. U1 is secured to the rear of the machine with four screws. U1 is not fuse
protected.
Connectors are unique by size, color or terminal count and are listed below counter-clockwise.
CN1 : Motor Overheat Switch located on Drum motor M1 (normally closed)
CN2 : INTERLOCK, L1’, N’ (120 vac, when the doorlock is activated)
CN3 : Power L1, N (120 vac continuous)
CN4 : Cold Detergent Valve Y11 (120 vac, when activated)
CN5 : Cold Bleach Valve Y13 and Hot Detergent Valve Y21 (120 vac, when activated)
CN6 : External Liquid Supply (120 vac, when activated)
CN7 : Pump M2 (120 vac, when activated)
CN13 : Door-closed switch S3 and lock and unlock coil all located on doorlock A11
CN22 : 12vdc power and communications with CPU Display Board A1
CN17 : Tachometer located on Drum Motor M1
CN18 : Motor windings (3 phase) drum motor M1 (See wiring diagram for resistance)
INTERLOCK: In order for components (M1, M2, Y11, Y13, Y21, External Liquid Supplies) to
receive power, L1’,N’ INTERLOCK voltage must be present at U1:CN2. This circuit passes
through the two S4 doorlock safety switches on the doorlock A111. Thus, the door must be
closed locked for the machine to operate.
Circuit GROUND:
The “logic” ground on the U1 and A! circuit boards is not at earth ground
potential. This means that any machine harness, payment system harness, or component
insulation failure leading to a chassis short, including the circuit ground, can potentially damage
the U1 and / or A1 circuit boards.
CN1 CN2 CN3 CN5 CN4
CN6
CN7
CN13
N.C. CN22 CN17 CN18