Danfoss AK-PC 551 User Manual

AK-PC 551 User Guide RS8GY302 © Danfoss 2015-06 17
Analog outputs
3:
4:
0-10 V outputs
When a function has been dened that needs to use a variable voltage outlet, it will be pos-
sible to select this function on one of the available AO outputs (only AO3 and AO4
are available).
Select one of the two outputs and continue on in the setting process. In the last setting you
will have the option of selecting which function you wish to link to the output.
0-10 V
0-5 V
Analog inputs
1:
2:
3:
4:
.
.
8:
Analogue inputs
When a function is dened that needs to use a temperature sensor or a pressure transmitter,
it will be possible to select this function on one of the available AI inputs.
Select an input and continue on into the setting. In the nal setting you will be able to select
which function you wish to connect to the input.
Saux is a sensor for a general thermostat.
(A type AKS 2050 pressure transmitter, for high pressure, emits a signal as an AKS 32R.)
Pressure signal:
AKS 33
AKS 32R
AKS 32
2-10 V
0-20 mA
0-10 V
0-5 V
Temperature signal:
NTC-86K
Pt 1000 ohm
None
I/O Status
Digital outputs
1:
.
8:
Status of on/o outputs
Here you can see if the function is on or o.
Digital inputs
1:
.
8:
Status of on/o inputs
Here you can see the status of the function/alarm.
Analogue outputs
3:
4:
Status of analogue outputs
Here you can see the size of the output signals as a % of max. signal.
Analog inputs
1:
.
8:
Status of analogue inputs
Here you can see pressure and temperature values received by the controller.
The values include calibration
I/O Summary
DO: Max 8, Used:__
DI: Max 8, Used:__
AO: Max 2, Used:__
AI: Max 8, Used:__
Inputs and outputs used
Here you can see how many of the dierent inputs and outputs are available.
You can also compare this amount with how many have been congured.
If too many have been dened, an exclamation mark (!) will appear.
I/O Manual control
Digital outputs Manual control of a relay output
Under normal regulation, the function of the relay will be in “Auto”.
In the event of an override, the function will be switched to either “On” or “O”.
Remember to switch to “Auto” when the override is to be completed.
Auto / On / O
Analog outputs Manual control of analogue output
During normal regulation, the function of the output will be “Auto”.
In the event of an override, the function must rst be changed to “Manual”,
after which the output signal can be changed from 0-100%.
Remember to switch to “Auto” when the override is to be completed.
Auto / Man
0-100%
Alarm priorities
General
Standby mode:
Sensor error:
Refrigerant:
Output in MANUAL:
Alarm priorities
The controller will issue an alarm notication if a specic incident occurs.
Each incident is set to indicate the importance of each alarm, but it is possible to modify the
importance of each. Choose from between the following priority levels:
Critical: Important alarms that require a high level of attention.
Severe: Alarms of intermediate importance
Normal: No important alarms
Disable: Alarms set to this priority level will be cancelled.
Factory setting for the alarm can be seen on page 21.
Critical
Servere
Normal
Disable
Suction group A
Low pressure:
High pressure:
Compressor safety:
Suction group B
Low pressure:
High pressure:
Compressor safety:
Condenser
High pressure:
Fan safety:

Danfoss AK-PC 551 Specifications

General

Brand	Danfoss
Model	AK-PC 551
Category	Controller
Language	English