17
Control Unit
CU4 Direct Connect
Instruction Manual: UK-3
Control Unit CU4 Direct Connect UK-3 / 20.04.2011
UK
APV
6.
Electronic module
6.2.
Functional description of connections
Terminal
Designation
Functional description
1
Power
Operating voltage
2
Power
Operating voltage
3
DO Closed Valve
Digital potential-free output for closed valve position
4
DO Open Valve
Digital potential-free output for open valve position
5
DO Common
Common potential for digital output to valve position indication
6
DI Main Valve
Digital input to control 1st solenoid valve (valve open)
7
DI Upper Seat Lift
Digital input to control 2nd solenoid valve
(seat lifting of upper valve seat)
8
DI Lower Seat Lift
Digital input to control 3rd solenoid valve
(seat lifting of lower valve seat)
9
DI Common
Common potential for digital inputs to control valve
10
5 VDC
Voltage supply for valve sensor
11
Sensor 1
Sensor signal 1 (closed valve position)
12
GND
Mass potential for sensor supply
13
5 VDC
Voltage supply for valve sensor
14
Sensor 2
Sensor signal 2 (open valve position)
15
GND
Mass potential for sensor supply
