biosystems BA 400 - Page 57

Service Manual
57
Connector Function Pin
CN22 E1 electro valve Pin 1: 24 V
Pin 2: Activation signal
CN23 E2 electro valve Pin 1: 24 V
Pin 2: Activation signal
CN24 E3 electro valve Pin 1: 24 V
Pin 2: Activation signal
CN26 Wash station water dispensation motor Pin 1: Coil 1
Pin 2: Coil 1
Pin 3: Coil 2
Pin 4: Coil 2
CN27 Wash station water dispensation start-up
detection
Pin 1: Detection
Pin 2: GND
Pin 3: 5V
CN28 Wash station water thermostatting thermostat Pin 1: output 1
Pin 2: GND
Figure 4.18 Fluid control board silk printing
Test point Function
TP1 24 V (bus voltage)
TP2 GND (bus voltage)
TP4 5 V
TP5 CAN_H (bus signal)