BECKHOFF DK9222-0810-0040 - Manual (Page 3)

I/O
I/O, Building Automation
Application Note DK9222-0810-0040
lower-power consumers up to 6 A, 230 V AC to On/Off and auto mode. The priority function for manual interventions is realized
through the internal configuration (see Fig. 1).
0 V
5 V
0 V
COM
N/O
Auto
ON
OFF
N/C
K-Bus
Internal KM2652 circuit
Fig. 1 Internal circuit of the KM2652 relay module terminal
The KM4602 2-channel analog output terminal is the corresponding equivalent for analog signals from 0 to 10 V. The operating
mode (manual/auto) is selected via a toggle switch in the front panel and the analog value is set via a potentiometer.
10 V
ON
ADC
Internal KM4602 circuit
Ch x
GND
Auto
K-Bus
Fig. 2 Internal circuit of the analog KM4602 output terminal
To protect from improper operation by unauthorized or unqualified persons, the implementation of local operation and local
override operation with components from Beckhoff assumes that access to the elements within the control cabinet is restricted
to qualified personnel. If this requirement is met, local override operation can be implemented within the control cabinet.
New Automation Technology Beckhoff 
For application notes see disclaimer on the last page