© Danfoss A/S (AC-AKC/ frz), 10-2007
DKRCI.PI.HV0.A1.53 / 520H0546
7
Installation
Use
ICAD 600 and ICAD 900 can be used
together with the following Danfoss valves
(fig. 1, 5a and 5b).
ICAD 600
ICAD 900
ICM 20
ICM 40
ICM 25
ICM 50
ICM 32
ICM 65
Electrical data
Supply voltage is galvanically isolated from
in-/output.
Supply voltage
24 V d.c., +10% / -15%
Load ICAD 600: 1.2 A
ICAD 900: 2.0 A
Fail safe supply
Min. 19 V d.c.
Load ICAD 600: 1.2 A
ICAD 900: 2.0 A
Anolog input - Current or Voltage
Current
0/4 - 20 mA
Load: 200
W
Voltage
0/2 - 10 V d.c.
Load: 10 k
W
Analog output
0/4 - 20 mA
Load: ≤ 250
W
Digital input - Digital ON/OFF input by means
of voltfree contact (Signal/Telecom relays
with gold-plated contacts recommended)
– Voltage input used
ON: contact impedance < 50
W
)
OFF: contact impedance > 100 k
W
Digital output - 3 pcs. NPN transistor output
External supply: 5 - 24 V d.c. (same supply
as for ICAD can be used,
but please note that the
galvanically isolated
system will then be
spoiled).
Output load:
50
W
Load:
Max. 50 mA
Temperature range (ambient)
–30°C/+50°C (–22°F/122°F)
Enclosure
IP 65 (~NEMA 4)
ENGLISH
Cable connection
Two 1.8 m. (70.7 in.) cables premounted
Supply cable
3 x 0.25 mm
2
(3 x ~24 AWG) (fig. 6)
I: White (+) 19 - 24 V d.c. fail safe
supply (optional).
II: Brown (+) 24 V d.c.
III: Green (–) 24 V d.c.
Control cable
7 x 0.25 mm
2
(7 x ~24 AWG) (fig. 7)
A: White (–) Digital output.
Common Alarm.
B: Brown (–) Digital output.
ICM fully open.
C: Green (–) Digital output.
ICM fully closed.
D: Yellow (–) GND - Ground.
E: Grey (+) Analog input 0/4-20 mA.
F: Pink
(+) Analog input 0/2-10 V /
Digital ON/OFF input.
G: Blue (+) Analog output 0/4-20 mA.
Electrical installation
General procedure for ICAD 600/900
installed on all ICM valves.
All necessary electrical connections to be
made. Analog or digital operation of ICM
valve.
Fig. 6
Analog operation
- 7 wired cable (A-G)
Modulation control. ICM valve to be
controlled from Danfoss electronics,
type EKC (fig. 7), or third party
electronics (like e.g. PLC).
Connect analog input signals. Currrent
(mA) or Voltage (V). See
Parameter
list
for configuration of analog input
signals.
Grey (+) and Yellow (GND) are used for
current (mA) input.
or
Pink (+) and Yellow (GND) are used for
Voltage (V) input.
Blue (+) and Yellow (GND) are used
for current (mA) output (optional, not
mandatory).
Fig. 6
Digital operation
- 7 wired cable (A-G)
ON/OFF ICM solenoid valve operation.
ICM valve to be controlled by means of
a digital voltfree contact.
Connect digital input signals (fig. 8).
See
Parameter list
for configuration
of digital input signals.
Pink (+) and Yellow (GND) are
connected to a voltfree contact.
Digital output signals are optional, not
mandatory.
White (–) and Yellow (GND) are
connected to auxiliary relay for
Common Alarm.
Brown (–) and Yellow (GND) are
connected to an auxiliary relay
indicating ICM fully open.
Green (–) and Yellow (GND) are
connected to an auxiliary relay
indicating ICM fully closed.
Supply voltage
- 3 wired cable (I, II, III)
ICAD must be connected to a normal
24 V d.c. supply. As an option, a fail safe
supply is possible by means of a battery
or UPS (Uninterruptible Power Supply).
When voltage is applied as described
below, ICAD is ready to be configurated.
See
Parameter list
.
ICAD configuration can be done
independently whether the ICAD is
installed on the ICM valve or not.
See
Mechanical installation
.
Connect the Brown (+) and Green (–)
to a 24 V d.c. supply voltage (fig. 6).
Fail safe supply as an option (not
mandatory).
Connect the White (+) and Green (–) to
a fail safe supply.
Mechanical installation
General procedure for ICAD 600/900
installed on all ICM valves (fig. 3).
Check that the three socket set screws
are fully unscrewed counter clockwise
with a 2.5 mm Hexagon key.
Mount ICAD by slowly lowering it on
top of the ICM valve.
The magnet coupling will drag the ICM
and ICAD together and in position.
Push ICAD in place.
Fasten ICM and ICAD with the three
socket set screws using a 2.5 mm
Hexagon key.
Special moisture seal is damaged if
screws are removed (fig. 3, pos. A)
Startup
When voltage is applied for the first
time the display on the ICAD (fig. 2)
will alternate between showing: Actual
opening degree and
A1
.
A1
indicates an alarm which corresponds
to: No ICM valve selected. See
Alarms
for
further information.
Please observe that when the correct
ICM valve is entered in parameter
¡26
(see p. 8 for
Parameter list
) an automatic
calibration is carried out. I.e it is not
necessary to carry out another calibration
in parameter
¡05
.
See Parameter list to select the correct.
It is important to select and verify
correct valve.
ICAD must not be installed before
welding.
This apply for electrical as well as for
mechanical.
