Optigo OP10 user manual
Chapter 4
Installation and wiring
12
Analogue inputs AI
The analogue inputs must refer to an A
GND
terminal. The analogue inputs are for PT1000
temperature sensors only. AI1 has a range of 0…+84°C. AI2 has a range of
-30…+54°C
Digital inputs DI
The digital inputs must refer to DI+ on terminal 41.
The digital inputs may only be wired to voltage-free contacts. Any external voltage applied
to a digital input may seriously damage the unit.
Universal input UI
The universal input can, depending on the choice of application, be made to act as either an
analogue input or as a digital input.
When used as an analogue input it is for PT1000 temperature sensors. The input then has a
range of 0…+84°C
UI must refer to UI+ on terminal 43.
Analogue outputs
Analogue outputs must refer to a A
GND
terminal or directly to G0.
If the Optigo OP10 (24V supply model only) and actuators connected to it share transformer,
it is essential that the same transformer-pole is used as reference for all the equipment.
Failure to do so will prevent the equipment from functioning as intended and may also lead to
damages.
Digital outputs
The two digital outputs DO1 (terminal 14) and DO2 (terminal 15) are triac controlled. The
triacs are internally connected to G0. Each triac can handle 24 V AC, 500 mA. The outputs
cannot be used to drive DC relays.
When DO1 and DO2 are used for 3-point control DO1 will always be increase signal (open
valve) and DO2 always decrease signal (close valve)
The outputs should normally refer to G
DO
on terminal 13. G
DO
is internally connected to G
and supplies 24 V AC.
In OP10 G
DO
can deliver the necessary 2 x 500 mA.
13 G
DO
G0
G0
15
14
In OP10-230 however, the internal transformer’s capacity restricts the current on G
DO
to
approx. 165 mA.