biosystems BA 400 - Page 53

Service Manual
53
Connector Function Pin
CN7 General fan Pin 1: 24 V
Pin 2: GND
CN8 Cover sensor Pin 1: 5V
Pin 2: Detection signal
CN9 Rotor motor Pin 1: Coil 1
Pin 2: Coil 1
Pin 3: Coil 2
Pin 4: Coil 2
CN11 Rotor start-up detection Pin 1: Detection
Pin 2: GND
Pin 3: 5V
CN12 Peltier Pin 1: 24 V
Pin 2: Peltier diagnostic
Pin 3: Peltier diagnostic
Pin 4: GND
CN13 Peltier Pin 1: 24 V
Pin 2: Peltier diagnostic
Pin 3: Peltier diagnostic
Pin 4: GND
CN14 Fridge fan Pin 1: 24 V
Pin 2: Detection diagnostic
Pin 3: GND
CN15 Fridge fan Pin 1: 24 V
Pin 2: Detection diagnostic
Pin 3: GND
CN16 Temperature sensor Pin 1: Sensor
Pin 2: GND
CN18 Fridge fan Pin 1: 24 V
Pin 2: Detection diagnostic
Pin 3: GND
CN19 Fridge fan Pin 1: 24 V
Pin 2: Detection diagnostic
Pin 3: GND
Test point Function
TP1 24 V
TP2 5 V
TP3 24 V (bus voltage)
TP4 GND (bus voltage)
TP5 CAN_H
TP6 Board selection. Direction 1
TP7 CAN_H (bus signal)
TP8 Board selection. Direction 2
TP9 CAN_L (bus signal)