14
Technical
brochure RC8CF102 © Danfoss 08-2014
AK-PC
551
Press ENTER to select
digital and analog I/O
Press ENTER to select
I/O configuration
Main menu
IO configuration menu
Digital outputs
Digital inputs
Analog outputs
Analog inputs
Example: Check IO configuration
Wizard assignment of inputs and outputs (I/0)
Once the wizard is applied, the IO functions are automatically
assigned to hardware inputs and outputs�
The screens below shows how the IO functions are assigned
according to the example�
Assignment of inputs and outputs
The table indicates rules for assignment of inputs and outputs via the wizard�
* Special features to be enabled through configuration screens. Not part of the wizard setup.
Digital outputs (DO1-DO8)
Digital inputs (DI1-DI8)
Analog outputs (AO3 – AO4)
Analog inputs(AI1-AI8)
PWM outputs for capacity
control of Digital scroll or
Stream 4 compressor are placed
on the solid state relays DO5
and DO6
Compressor safety inputs for
respectively suction group A
and B
Speed control of compressor
for respectively suction group A
and B
PoA og PoB suctionpressure are
placed on AI1 and AI2
Starting from DO1:
Fan safety inputs
Speed control of condenser
Pc condensing pressure is
placed on AI3
Compressor start relays
followed by unloading valves
for respectively suction group
A and B
External Main switch (ON/
OFF) *
Sc3 outdoor temperature is
placed on AI4
Condenser fan
HP safety switch*
S4A and S4B suction media
temperature sensors *
Injection ON for A/B *
LP safety switch *
S7 condenser media
temperature sensor *
Alarm relay
Night setback *
Sd komp� 1 discharge temp�
sensor for digital scroll/Stream
compressor for suction A and B
Heat recovery *
Ss suction gas temperature for
suction group A and B *
Load shedding *
Sd discharge temperature for
suction A and B *
General alarm inputs 1-3 *
Saux for general thermostat *