26
Special connections
Control output (0 to 10V / PWM)
These outputs are intended for the speed control of electronic pumps, to control the burn-
er output for switching tasks with the relay HIREL-STAG in certain programs. They can be
operated via respective menu functions parallel to the outputs A1 to A3.
Sensor input S6
As described in the menu SENSOR all six inputs have the possibility to operate as a digi-
tal input. Compared to the other inputs S6 has the special feature of being able to record fast
signal changes of the type supplied by volume flow encoders (type VSG...).
The data line (DL-Bus)
The bi-directional data link (DL-Bus) was developed for the ESR/UVR series and is on-
ly compatible with products of the Technische Alternative company.
Any cable with a cross
section of 0.75 mm² can be used for the data link (e.g. twin-strand) having a max. length of
30 m. For longer cables, we recommend the use of shielded cable. If screened cables are
used, the screen must be connected to the sensor earth
Interface to PC:
The data is cached via the data converter
D-LOGG
, Bootloader
BL-NET
or
C.M.I.
interface and transferred to the PC on request.
BL-NET
and
C.M.I.
require a sepa-
rate 12V power unit for power supply
External sensors:
Reading the values from external sensors with DL connector.
Switch output 3 to potential-free
By removing the jumper
J
the relay output A3 can be made potential-free.
With the jumper
J
in place, output 3
is
not
potential-free.
Example
: Connection of a pump
L ...
phase conductor
NO .... Closer (make contact)
NC .... Opener (break contact)
If the jumper is removed, then output
3 is potential-free.
Example
:
Diagram 16
Burner demand A3 + Pump A2
C ....
Root C
NO .... Closer (make contact)
NC .... Opener (break contact)
Burner
demand
