Danfoss ICAD 600 Manual Del Usuario página 8

General Operation
ICAD is equipped with an MMI (Man
Machine Interface) from which it is possible
to see and change different parameters to
adapt the ICAD and the corresponding ICM
to the actual refrigeration application. The
operation of parameters is done by means
of the integrated ICAD MMI (fig. 2) and
consists of:
1 2 3
Down arrow push button (fig. 2, pos. 1)
decreases parameter number by 1 for
each activation
Enter push button (fig. 2, pos. 2)
Gives access to the Parameter list by
keeping the push button activated for
2 seconds. A Parameter list is shown
below (parameter ¡08):
Gives access to change a value once
the Parameter list has been accessed.
Acknowledge and save change of
value of a parameter.
To exit from the Parameter list and
return to the display of Opening
Degree (OD) keep the push button
activated for 2 seconds.
Up arrow push button (fig. 2, pos. 3)
Increases parameter number by 1 for
each activation
Display (fig. 2, pos. 4)
Normally the Opening Degree (OD)
0 - 100 % of the ICM valve is displayed.
No activation of push buttons for 20
seconds means that the display will
always show OD. Like below:
Displays the parameter
Displays the actual value of a
parameter.
Displays the status by means of text
(fig. 2, pos. 4)
8
Mod represents that ICAD is
positioning the ICM valve according
to an analog input signal (Current or
Voltage).
Low represents that ICAD is operating
the ICM valve like an ON/OFF solenoid
valve with low speed according to a
digital input signal.
Med represents that ICAD is operating
the ICM valve like an ON/OFF solenoid
valve with medium speed according to
a digital input signal.
High represents that ICAD is operating
the ICM valve like an ON/OFF solenoid
valve with high speed according to a
digital input signal. Like below:
Alarms
ICAD can handle and display different
alarms.
ICM
Description Comments
alarm text
A1 At start-up A1 and CA will be
No valve
type displayed
selected
A2
Controller Internal fault inside
fault electronics
AIl input A3 Not active if ¡01 = 2 or ¡02 = 2
error When ¡03 = 1 and AI A > 22 mA
When ¡03 = 2 and AI A > 22 mA
or AI A < 2 mA
When ¡03 = 3 and AI A >12 V
When ¡03 = 4 and AI A >12 V
or AI A < 1 V
A4
Low voltage If 5 V d.c. < Fail safe supply
of fail safe < 18 V d.c.
supply
A5
Check If supply voltage < 18 V d.c.
Supply to
ICAD
If an alarm has been detected the display
at ICAD (fig. 2) will alternate between
showing actual alarm and present Opening
Degree.
If more than one alarm is active at the
same time only the alarm with the highest
priority will appear. A1 has the highest
priority, A5 the lowest.
Any active alarm will activate the Common
Digital Alarm output (Normally Open).
All alarms will automatically reset them-
selves when they physically disappear.
Old alarms (alarms that have been active,
but have physically disappeared again) can
be found in parameter ¡11.
DKRCI.PI.HV0.A1.53 / 520H0546
Disposal Note
The Product contains
electrical components
And may not be
disposed together
with domestic waste.
Equipment must be separate collected
with Electrical and Electronic waste.
According to Local and currently valid
legislation.
© Danfoss A/S (AC-AKC / frz), 10-2007