7
Control Unit
CU4 Direct Connect
Instruction Manual: UK-3
Control Unit CU4 Direct Connect UK-3 / 20.04.2011
UK
APV
3.
General Terms
3.3.
Function of the individual components
The luminous diodes are located on the front side of the
electronic module. Their signals are visibly indicated to the
outside by an optical window in the cover the control unit. Beside
the open and closed valve position, the existence of the operating
voltage as well as different diagnostic information are indicated.
Chapter 6.4.
LED indicators provide more details.
The complete control unit has been designed on the building
block principle. By exchange of the electronic module, the control
type can be changed, e.g. from direct control (Direct Connect) to
communication with AS-Interface.
(
Attention
: wiring needs also be changed.)
