* ICAD 600, 900 and 1200 were discontinued at the end of 2014. ICAD 600A is a direct replacement of ICAD 600 and ICAD 1200A is a
direct replacement of ICAD 900 or ICAD 1200.
Identifying ICM sizesAll ICM sizes except ICM 20 have a stainless steel
ID tag located around the valve stem on the top
cover which the ICAD mounts on. When the ICAD
is mounted it can be difficult to locate this. The
sticker on the valve body of the large valves states
ICV and the valve size because the body is shared
between the ICM motor valves, ICS pilot operated
valves and ICLX solenoid valves.
The ICV size is the same size as the ICM size which
is needed during programming. ICM 20 only has a
sticker on the side of the valve body to identify the
size.
Different ICM 20
cone and orifice
designs
ICM20-A33
A33 has a groove here
for identification
7 mm
ICM20-A (2nd gen.)
Introduced mid 2009
If the sticker is missing the size can be identified by
the shape of the cone. The below figure shows how
to indentify the ICM 20 size by looking at the cone.
5 mm
ICM20-A (1st gen.)
Discontinued mid 2009
Note:
The outside edges of the
B66 cone has more of a
cylindrical shape compared
to the B cone which forms
more of a conical shape.
Differences between 1st and
2nd generation ICAD motor
actuators
The 2nd generation ICAD was released in the
beginning of 2010. The part numbers on the
label for the 2nd generation start with 027H9…
and the 1
st
generation part numbers started with
027H12… The cables of the 1st generation were
mounted through cable glands located in the
plastic top whereas the 2nd generation has the
cables mounted on connectors located in the
aluminum body.
Power cable
(3-wire)
Communication
cable (7-wire)
+ 19-24 V d.c. fail safe supplyWhite (+)Black (+)
+ 24 V d.c. Brown (+)White (+)
- 24 C d.c. (GND)Green (-)Brown (-)
Digital output (common alarm)White (-)Black (-)
Digital output (ICM fully open)Brown (-)Brown (-)
Digital output (ICM fully closed)Green (-)Red (-)
GND - groundYellow (-)Orange (-)
Analog input (0/4-20 mAGrey (+)Yellow (+)
Analog input 0/2-10 V /
Digital ON/OFF input
Analog output 0/4-20 mABlue (+)Blue (+)
Note: The wire colors are different between the two
generations and the following is a table with the
differences and pictures of old and new generation.
be installed in horizontal pipelines with the
motor actuator in an upright position.
2. Preparation of Valve Body
ICM 20 (3/4”) valves: both the integrated
bonnet/function module and the separate
valve seat must be removed from the valve
body prior to welding. To remove the
ICM20-A33 or ICM20-A valve seat use a 13mm
socket and to remove the ICM20-B66, ICM 20-B
or ICM20-C valve seat, use a 12 mm hex key.
- ICM 25 to 65 (1” to 2-1/2”) valves, the
integrated bonnet and function module
should be removed as shown in the figure.
- ICM 100 to 150 (4” to 6”) valves, the function
module and bonnet are separate pieces and
do not need to be removed prior to welding.
However, some form of arc welding should
be used to weld the valve into the piping and
care should be taken to protect the valve
stem from becoming contaminated.
3
3
1
2
2
Removing the bonnet/function module from the body
of the ICM 25 to 65 valves.
Care should be taken to protect the ICM function module when it is removed and stored during
installation of valve body.
3. Weld the valve body in line making sure that the arrow on the valve body is pointing in the direction
of flow.
- For ICM 20 through 65, make sure that all debris is removed from valve body before bonnet/ function module is re-installed.
- For the ICM 20, make sure that the removable orifice seat is re-installed in the valve body with the
small o-ring between the orifice seat and the body. Use a 13mm socket to tighten the ICM20-A33 or
ICM20-A valve seat to a torque of 6.5 ft-lbs (9 N-m). Use a 12 mm hex key to tighten the ICM 20-B66,
ICM20-B or ICM20-C valve seat to a torque of 1.5 ft-lbs (2 Nm).
DO NOT OVERTIGHTEN THE REMOVABLE SEAT.
Make sure that the bonnet gasket is installed and in good condition.
- For the ICM 25 through ICM 65, check that the two o-rings are installed on the function module and
that the gasket located on the top of the valve body is installed and all are in good condition.
A light coating of refrigerant oil on the bonnet o-rings and the cover gasket will facilitate assembly
of the valve.
4. Install the bolts and torque to the following specifications:
Valve BodyNmft lbs
ICM 204029
ICM 2510074
ICM 3212088
ICM 4012088
ICM 50140103
ICM 65150110
ICM 100 through 150220162
5. Install the ICAD Motor on the ICM valve:
The ICM valve must not be in its full opened position while the ICAD motor is calibrated with the valve
(at a later step). Therefore, if the opening degree of the ICM valve was changed from the factory
setting, it should be set to an opening degree between 0% and 75% using the manual magnet tool.
To easily ensure correct positioning, turn the manual tool counter-clockwise until it is clear that it cannot be turned any further.
- Make sure that the ICM adapter/valve stem and inner ICAD magnets are completely dry and free
from any debris.
- The ICM adapter O-ring (position 2c in the diagram on page 5)must be removed and Molycote 55
grease (supplied with ICAD motor) needs to be applied in the O-ring groove on the adapter and on
the O-ring before it is re-installed on the ICM adapter.
The Molycote grease ensures a good seal between the ICAD motor and the ICM adapter to prevent
moisture from entering the ICAD magnets.
- Place the ICAD motor on the valve stem.
- Push the ICAD motor completely down to the identification ring on the valve stem. Using a 2.5 mm
hex key, tighten the set screws evenly so the ICAD motor is centered on the ICM valve stem.
Torque the set screws to approximately 3 Nm (2.5 ft-lbs).
Supply voltage is galvanically isolated from input and output wires
Supply Voltage Fail Safe Supply
24 VDC + 10%/-15% Min. 19 VDC
Load ICAD 600A 1.2 A ICAD 600A 1.2 A
ICAD 1200A 2.0 A ICAD 1200A 2.0 A
Analog Input – Current or Voltage Analog Output
Current 0/4 – 20 mA 0/4 – 20 mA
Load: 200Ώ Load: ≤ 250 Ώ
Voltage 0/2 – 10 VDC
Load: 10k Ώ
Digital Input – Digital On/Off input by means of voltfree contact with gold-plated contacts recommended
Voltage Input Used
ON: contact impedance < 50 Ώ
OFF: contact impedance > 100 k Ώ
Digital Output: 3 pcs. NPN transistor output
External Supply: 5 – 24 VDC (same supply as for ICAD can be used but note that galvanically isolated system will be spoiled.
Output Load: 50 Ώ
Load Max. 50 mA
Wiring the ICAD actuatorThere are two cables which are connected to the ICAD motor with M12 connectors:
4 pin male connector8 pin male connector
II
I
Communication connector / cable
Ref. ColorDescription
A Black– Common Alarm
B Brown– ICM fully open
C Red– ICM fully closed
D Orange – GND ground
E Yellow+ 0/4 - 20 mA Input*
F Green+
G Blue+ 0/4 - 20 mA Output*
Power connector/cable (3 wires)
IBlack+
IIWhite+
III Brown–
* If using floating 3-point control (parameter i02=3) then wire colors yellow and blue are combined to make the 2nd digital input
0/2 - 10 V Input. Also used with GND (orange wire) as a digital input #1 for
on-off operation or floating 3-point control
Fail safe supply
Battery / UPS (uninterruptable power supply) 19 V d.c.
Wiring diagram showing ICAD wired with one digital input for ON/OFF solenoid valve operation
Note: The ICAD motor can be programmed to open or close when the relay is closed. See parameter ¡09 in
programming section.
Green
Relay
Orange
Black
White
Brown
+
Optional UPS/battery
back up
24 V d.c
+
Power
-
Supply
CUSTOMER SUPPLIED
Wiring diagram for floating 3-point control (open-neutral-close)
Default Setting
Par. i13=0 (Direct operation)
DI1=DI2=OFF: maintains
current postion
DI1=DI2=ON: maintains
current postion
DI1=ON, DI2=OFF: opening
degree increases
DI1=ON, DI2=OFF: opening
degree decreases
ICAD Commuication cable
ICAD power cable
Green
Orange
Yellow
Blue
Black
White
Brown
Relay for DI 1 (Digital Input1)
Relay for DI2 (Digital Input2)
+
Optional UPS/battery
+
24 V d.c
Power
supply
back up
Wiring diagram showing ICAD digital outputs wired with customer supplied auxiliary relays
NOTE: The same 24 V d.c. power that powers the ICAD can be used with the ICAD digital outputs to power
auxiliary relays (or other small load devices) but the system will no longer be galvanically isolated.
1. All ICAD actuators are digital stepper motors. As the control signal changes ICAD will electronically
count steps up or down from its previous position. The ICAD 600A, ICAD 1200 and 1200A have an
optical encoder which will actually measure the steps to recalibrate while operating if needed. In
all cases, the ICAD actuators will recalibrate every time that power is cut and then reconnected.
Recalibration is also accomplished when the valve is driven closed, the ICAD will take an extra closing
step to make sure it is completely closed and start counting from 0 again.
2. The ICAD actuators can also be put into manual mode by using parameter ¡01. Once the parameter
has been selected and the manual mode entered, the valve can be opened and closed independent
of the control signal. When in the manual mode, the display screen will flash the opening degree and
continue to flash until the parameter is restored to its normal operation setting.
3. The ICAD actuator can be controlled with an analog input for modulating control, 1 digital input for
open/close solenoid function or with 2 digital inputs for floating 3-point control (open-neutral-close).
The speed of the ICAD can be altered (see parameters ¡04 and ¡14).
4. The ICAD display will continuously display the ICM valve opening degree in % unless there is an alarm
or the parameter list is being viewed. The display will also indicate Mod if being controlled by an
analog input signal (modulating mode) or if being controlled by digital inputs the display will indicate
Low, Med or High depending on the speed setting.
5. The ICAD actuator can be connected to a 24 V d.c. UPS (uninterruptable power supply) and can
be programmed for a specific action in the event of a disruption to the normal power supply (see
parameters ¡07, ¡08 and ¡12). Please note that the UPS provides a discrete short term action in the
event of a power failure. It cannot be used for normal operation.
6. The ICAD actuator also has an inverse function (see parameter ¡13). This feature allows the valve to
either open or close on a rising analog signal.
1. To access the ICAD actuator menu, press and hold the middle button (2) until the menu appears.
1. Down arrow push button
2. Enter
3. Up arrow push button
4. Display
2. Once you are in the menu, use the UP (3) and DOWN (1) arrows to move through the list of
3. To display and/or change the value of the parameter, press the middle button (2) to view the current
4. Repeat this procedure for all parameters.
5. Exit from the parameter list by pressing and holding the middle button for 2 seconds or simply wait
When the ICAD actuator is first powered on, the ICAD display will flash an A1 alarm. This alarm is a
reminder that the ICM valve being moved by the ICAD has not been selected in parameter ¡26. Parameter
¡26 is password protected and will not appear in the parameter list until the user enters the password in
parameter ¡10. The password is “11” and will allow the user to access parameter ¡26 where the appropriate
valve size can be selected. Once the ICM valve size is selected (see page 3 on how to identify ICM size), the
ICAD actuator will calibrate itself to that particular size and will then be ready to receive a control signal.
Description
OD (Opening degree)-0100%-
Main Switch¡01121
Mode¡02121
AI signal¡03142
Speed
In Modulating Mode
Opening/closing
speed
In ON/OFF Mode
Opening speed
In Neutralzone/
3 point control
Opening speed = 10
Automatic calibration¡05020-No
AO signal¡06022
Failsafe¡07141
Fail safe supply¡08010
DI function¡09121
Password¡1001990--
Old Alarms¡11A1A99--No
OD at power cut.¡12010050
Inverse operation¡13010
ICAD
parameter
Min Max
¡04110050/ 100
Factory
Setting
Stored Unit Password Comments
-No
-No
-No
-No
-No
-No
ICM/ICMTS valve Opening Degree (CVE pressure setting) is displayed during normal
operation.
Running display value (see ¡01, ¡05).
Internal main switch
1: Normal operation
2: Manual operation. Valve Opening Degree will be flashing. With the down
arrow and the up arrow push buttons the OD can be entered manually.
Operation mode
1: Modulating – ICM, ICMTS & CVE positioning according to Analog Input (see ¡03)
2: ON/OFF - ICM only. Operating the ICM valve like an ON/OFF solenoid valve
controlled via Digital Input. See also ¡09.
3: Neutralzone / 3 point control - ICM only. Increase/Decrease Opening Degree by
Digital Input. See fig. 9
Type of AI signal from external controller
1: 0 – 20 mA
2: 4 – 20 mA
3: 0 – 10 V
4: 2 – 10 V
Speed can be decreased. Max. speed is 100 % - Not active in manual operation (¡01 = 2)
For CVE the speed should not exceed 50 (factory setting)
If ¡26= 1 - 3 then factory setting =100
If ¡26= 4 - 10 then factory setting =50
If the valve is opening and (¡04 < = 33) or the valve is closing and (¡14 < = 33)
=> Low is displayed.
If the valve is opening and (33 < If ¡04 < = 66) or the valve is closing and (33 < If ¡14 < = 66)
=> Med is displayed.
If the valve is opening and (¡04 > = 67) or the valve is closing and (¡14 > = 67)
=> High is displayed"
Not active before ¡26 has been operated.
Always auto reset to 0.
CA will flash in the display during calibration,
if Enter push button has been activated for two seconds
0: No Calibration
1: Normal forced calibration - CA flashing slowly
2: Extended calibration – CA flashing rapidly"
Type of A0 signal for ICM valve position
0: No signal
1: 0 – 20 mA
2: 4 – 20 mA
Define condition at power cut and fail safe supply is installed.
1: Close valve
2: Open Valve
3: Maintain valve position
4: Go to OD given by ¡12"
Fail safe supply connected and enable of A4 alarm:
Yes
0: No
1: Yes
Define function when DI is ON (short circuited DI terminals) when ¡02 = 2
No
1: Open ICM valve (DI = OFF = > Close ICM valve)
2: Close ICM valve (DI = OFF = > Open ICM valve)
Enter number to access password protected parameters: ¡26
Password = 11
Old alarms will be listed with the latest shown first. Alarm list can be reset by means
of activating down arrow and up arrow at the same time for 2 seconds.
Only active if ¡07 = 4
No
If fail safe supply is connected and power cut occurs, the valve will go to the specified OD.
When ¡02 = 1
0: Increasing Analog Input signal => Increasing ICM Opening Degree
1: Increasing Analog Input signal => Decreasing ICM Opening Degree
When ¡02 = 3
0: DI1 = ON, DI2 = OFF => Increasing valve Opening Degree.
DI1 = OFF, DI2 = ON => Decreasing valve Opening Degree
No
DI1 = DI2 = OFF => ICAD/ICM maintain current position
DI1 = DI2 = ON => ICAD/ICM maintain current position
1: DI1 = ON, DI2 = OFF => Decreasing ICM Opening Degree
DI1 = OFF, DI2 = ON => Increasing ICM Opening Degree
DI1 = DI2 = OFF => ICAD/ICM maintain current position
DI1 = DI2 = ON => ICAD/ICM maintain current position
In Neutralzone/
3 point control
Closing speed = 10
Manual set point¡1501000-NoWhen ¡01= 2, ¡15 determine the start up value
Encoder operation¡16011
Forced closing when
ICM valve Opening
Degree < 3%
Action when ICAD is
losing step
See Note 1
Delay after boost,
before A9 alarm
See Note 1
Max offset value
See Note 1
Define how to Reset/
Suppress A9 alarm
See Note 1
Reset delay for A9
See Note 1
Valve configuration¡26090
Running current
factor
Holding current factor¡3102010
ICAD
parameter
Min Max
¡140100 50/100
¡17010
¡18066
¡190301
¡203153
¡21041
¡221205
¡3002010
Factory
StoredUnitPassword Comments
Setting
-No
-Ye s
-No
-No
MinutesNoTime delay between two boosts. Linked to ¡18 function
%Ye s
-No
MinutesNo
-Ye s
-Ye s
-Ye s
See ¡04. Not applicable to CVE
If ¡26= 1 - 3 then factory setting = 100
If ¡26= 4 - 10 then factory setting = 50
NB: Password protected. Password = 7
0: Encoder disabled. Means ICAD operation as ICAD 600A/ICAD 600A-TS/1200A
without encoder.
1: Encoder enabled
Enable/Disable forced closing. Not applicable to CVE
0: When ICM valve Opening Degree < 3% it will be forced to close regardless of
requested ICM valve Opening Degree
1: When ICM valve Opening Degree < 3% no forced to closing will take place
Action when ICAD is losing step.
0: A boost starts if lost step is detected. After 15 sec, the A9 alarm is flashing and
DO A Common Alarm is ON.
A second boost starts after the time in ¡19 has elapsed. If the second boost cyklus
does not bring the valve back in operation a forced calibration is carried out.
3: A9 alarm flashing after 15 sec. DO A Common Alarm ON. ICAD is locked in
actual position.
No boost cyklus, Reset by Power OFF/ON, regardless of setting ¡21
6: Boost cyklus starts if lost step is detected.
After 3 boost cyklus the A9 alarm is flashing and DO A Common Alarm is ON.
Time interval between boost is set in ¡19.
The boost cyklus continues until the valve is back in operation.
Password=13.
Offset value (numeric)=Requested Opening Degree [%] from Analog Input Opening Degree [%] from encoder (Used with ¡21)
Define how to Reset/Suppress A9 alarm. A9 alarm means A9 flashing in display and
DO Common Alarm ON
0: Reset by Power OFF/ON
1: Autoreset when ICAD have succeeded to come back into normal operation.
Normal operation defined as: Offset value < ¡20 (Max offset value) and ¡22
(delay) has elapsed.
2: A9 alarm is suppressed, meaning no A9 flashing in display and DO Common
Alarm remains OFF
Reset delay for A9. Use when ¡21= 1
OBSERVE: ¡22 is recommended always to be bigger than ¡19 (¡22>¡19)
NB: Password protected. Password = 11
0: No valve selected. Alarm A1 will become active
1: ICM 20 with ICAD 600A / ICMTS 20 with ICAD 600A-TS
2: ICM 25 with ICAD 600A
3: ICM 32 with ICAD 600A
4: ICM 40 with ICAD 1200A
5: ICM 50 with ICAD 1200A
6: ICM 65 with ICAD 1200A
7: ICM 100 with ICAD 1200A
8: ICM 125 with ICAD 1200A
9: ICM 150 with ICAD 1200A
10: CVE pilot with ICAD 1200A
Password=19. Mandatory to set, if ICM/ICADs are installed/serviced, with cold
liquid (-30 °C (-22 °F) or lower) passing through ICM valve.
See also document number AN285243155312
Note 1:
After a parameter change, it is necessary to carry out a Power OFF/ON
It is possible to restore the original factory settings to the ICAD by the following procedure:
1. Remove the power supply.
2. Activate the up arrow and the down arrow push buttons at the same time.
3. While pushing the up and down arrows, reconnect the power supply.
4. Release the up and down arrows.
5. When the display on the ICAD is alternating between CA and AI, the factory parameters have been restored.
Pre-startup Checklist
• Valve Assembly
- Bonnet bolts are secure
- Seat has been replaced in body (ICM 20)
- The degree of opening of the valve is 75% or less
- Grease has been applied to o-ring area on valve stem
- Set screws have been uniformly tightened on ICAD Actuator
• Power has been connected to actuator ( 24 V d.c.)
• Back up power (UPS) has been connected to actuator (optional)
• Control Wiring has been connected
- Signal input: digital or analog
- Feedback wiring (optional)
• Programming (mandatory parameters)
- The mode of operation has been set (¡02)
- The input signal type has been set (¡03)
- The ICM valve size has been set (¡26)
Battery back-up (optional) parameters have been established (¡07, ¡08, ¡12)
Troubleshooting
Overview
The ICAD actuator has a number of very useful service parameters which should always be consulted first.
In addition, a manual tool should always be available to manually close the valve completely in the event
the ICAD has failed. When using the manual tool, turn the tool clockwise to open the valve and counterclockwise to close the valve.
NOTE:
When rotating the valve manually you are changing the position of the valve to a value different
than what is in the actuator’s memory. Therefore, a calibration must be performed when ICAD is
remounted to the valve. If power is cut from the actuator prior to using the manual tool or after
the valve has been adjusted, no problem will occur as the valve will automatically recalibrate itself
once power is restored. Power can easily be disconnected and reconnected by unscrewing and then
reconnecting the power cable from the ICAD actuator.
Service parameter (View only)
Service
Description
OD %¡500100-%-ICM valve Opening Degree / CVE pressure setting
AI [mA]¡510100-mA-AI signal
AI [V]¡520100-V-AI signal
AO [mA]¡530100-mA-A0 signal
DI¡5401---
DO Close¡5501---DO Closed status. ON when OD < 3 %
DO Open¡5601---DO Open status. ON when OD > 97 %
DO Alarm¡5701---DO alarm status. ON when a Alarm is detected
Display mP SW ver. ¡580100---Software version for display microprocessor
Motor mP SW ver. ¡590100---Software version for motor microprocessor
ICAD
parameter
Min Max
Factory
Setting
Stored Unit Password Comments
DI signals. Depending of ¡02
If ¡02 = 2, one digits are shown. See fig. 8
0 : DI1 = OFF
1 : DI1 = ON
If ¡02 = 3, two digits are shown. See fig. 9
00 : DI1 = OFF, DI2 = OFF
10 : DI1 = ON, DI2 = OFF
01 : DI1 = OFF, DI2 = ON
11 : DI1 = ON, DI2 = ON
Check supply to ICADA5Alarm ONIf supply voltage < 18 V
Calibration extended
failed
Internal temperature
alarm
POM mode
(Preventive Operational
Mode)
Note: old alarms that may not be active anymore will be saved and listed in paramenter i11
ICAD alarm
text
A4Alarm ON
A6Alarm ON
A7Alarm ON
A8Alarm ON
A9
Definition of eventComments
See
¡18
and
¡21
At start-up A1 will be displayed
Internal fault inside electronics.
Carry out:
1) Power OFF and Power ON
If A2 still active.
2) Make a Reset to factory setting
If A2 still active. Return ICAD to Danfoss
Not active if ¡01 = 2, or ¡02 = 2
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
If 5 V < fail safe supply
<18 V. Enabled by
Check valve type selected.
Check presence of foreign body internally in valve
Temperature for stepper motor component too high.Ventilate/lower ambient ICAD
temperature
Temperature for stepper motor component too high.
Ventilate/lower ambient ICAD temperature.
Only active if
If ICAD meets too high torque from ICM valve
(increased friction/sticking surfaces) ICAD automatic goes into POM mode to overcome
lost step.
(See ¡18 and ¡21)
¡16
¡08
= 1
Troubleshooting continuedThe alarms and service values work together to allow the user to quickly diagnose the source of operating
issues. The most common alarms are:
A1The user has not selected the valve type. Each ICAD actuator is capable of driving several different valve sizes. Upon installation of the valve, it is mandatory that the user select the
valve size from parameter ¡26.
Troubleshooting Tips
A3 The control signal is out of the range of the selected values. The most common causes of
this problem are:
1. Improper wiring
2. Incorrect selection of control signal (parameter ¡03)
3. The source of the control signal is not outputting the correct type of signal.
A9The valve is locked, disconnect and remove motor. Use magnetic tool to slowly open/close the valve thru the full range. There should be at no point a sticking/tight spot. You may need to
remove the valve bonnet/module to clean debris or replace the bonnet/module if it is damaged.
If A9 alarm continues please contact Danfoss with application details.
Of course, there are numerous other alarm messages designed to protect the equipment and help to
diagnose problems as pro-actively as possible. Most of these alarms are fairly self-explanatory.
The valve does not appear to close or stay closed completely.
• The display shows 0% opening degree but the valve can be driven further closed with the manual
tool.
Solution: Recalibrate the valve. In addition, if the manual tool has been used to open or close the
valve, the valve should turn very easily. If there appears to be resistance in opening or closing the
valve, replace the module.
• The display shows 0% opening degree and the valve cannot be driven closed any further with the
manual tool.
Solution: Pull the function module and check to ensure that there are 2 o-rings on the module for ICM
25 and larger. For size ICM 20, make sure valve seat is installed.
The valve does not appear to be moving to the correct position.
• Check service value ¡51. This is the mA input from the control system. The degree of opening is
linearly proportional to the mA input. (For example, if 4-20 mA was chosen as the input range and
the service value shows 12mA, the valve should be 50% open.)
Solution: Check parameter ¡03 to make sure that the correct scale was selected.
• Compare service value ¡51 to the value reported to be the output from the control system. If
necessary, measure the actual current into the ICAD.
Solution: If the two values do not equate, check wiring, paying special attention to wire polarity. If
measured mA does not equate to the stated controllers output, the problem is likely to be in the
control system. If measured mA does not equate to the value seen in ¡51 and everything is wired
properly, the problem is likely with the ICAD actuator.
• The ICAD was not mounted properly on the valve stem.
Solution: Check to make sure that the ICAD set screws are evenly torqued around the base of the ICAD.
The valve does not appear to be opening fast enough or seems too fast
• The speed of the ICM valves are preset at the factory:
• For ICM valves 20, 25, and 32, the preset speed is 100%
• For ICM valves 40, 50, 65, 100, 125, and 150, the preset speed is 50%
Solution: Check parameter ¡04 to note the actual setting and adjust accordingly
The valve position feedback signal is not working with the customer supplied controller/PLC.
• A power supply was installed in the 4-20mA/0-20 mA feedback loop. The ICAD motor actuator
supplies power for the 4-20mA/0-20 mA feedback loop.
Solution: Remove any power source that may be supplied to the feedback loop.
• Wiring problem.
Solution: Check the service value of ¡53 (the analog output signal) to see what the ICAD is outputting.
If nothing is revealed, check the output wire (blue) with an ammeter to verify the actual output value.
• The feedback output signal was not turned on in parameter ¡06.
Solution: Change this parameter to the appropriate signal.
Frequently Asked Questions
What happens in the event of a power failure?
The ICAD actuator will remain in the position it is in when power is lost. There are two approaches to
solving the issue:
• Add a UPS (Uninterruptible Power Supply) device to the power wiring. This is easily accomplished
with the brown (-) and black (+) wires in the power cable bundle. A UPS device is available from
Danfoss and can provide up to 10 amps of power for up to 90 seconds in order to move the valve to
the desired position. Because of the high amperage, the UPS is capable of providing power to several
ICAD actuators depending on the size of the actuator. NOTE: The UPS is not a continuous power
supply. It is only meant to change the valve position once in the event of a power failure.
• Add a solenoid valve in front of the ICM in order to stop refrigerant flow. This is a simple solution
provided that there is no issue associated with the additional pressure drop through the solenoid
valve.
How much power do I need to supply to the ICAD?
The total power required depends on the ICAD size and the number of ICAD’s powered by the dc power
supply. The power for each ICAD is:
• ICAD 600 (ICM 20, 25, and 32), the requirement per valve is approximately 30 watts.
• ICAD 900 (ICM 40, 50, and 65), the requirement per valve is approximately 50 watts.
• ICAD 1200 (ICM 100, 125, and 150) the requirement per valve is approximately 75 watts.
• ICAD 600A (ICM 20, 25, and 32), the requirement per valve is approximately 30 watts.
• ICAD 1200A (ICM 40, 50, 65, 100, 125, and 150) the requirement per valve is approximately 50 watts.
How can I monitor the valve position remotely?
The control wiring bundle provides for a 4 to 20 mA or 0 to 20 mA signal output with the blue (+) and
orange (-) wires. The signal can be sent to:
• A remote display
• A PLC or PC
• Another ICAD actuator to provide the same input signal (daisy chain)
At what minimum OD%/mA will the ICAD automatically close and calibrate?
The ICAD will automatically close or be closed when the opening degree is below 3% which corresponds
to 4.48 mA. After it is closed it will give a few extra steps to calibrate the valve.
If the 4-20mA signal is lost while the valve is open, will the ICAD close the valve?
Yes, if the input signal is lost while the valve is open, the ICAD will close the valve and flash an A3 alarm
which is for an input error.