Emerson Vilter VSS Serie Manual De Instalación, Operación Y Mantenimiento página 174

ICM/ICAD Motorized Valve
ICAD overview
Operation the ICAD menu
10
Installation, Programming, and Troubleshooting
1. All ICAD actuators are digital stepper motors. As the control signal changes, the ICAD 600 and
900 will electronically count steps up or down from its previous position. The ICAD 1200 actuator
has an optical encoder which will actually measure steps. In all cases, the ICAD actuators will re-
calibrate every time that the power is cut and then re-connected. Recalibration is accomplished
by driving the valve completely closed upon power connection and then reverting to the
position that the control signal is instructing it to go to.
The ICAD actuators can also be put into manual mode by using parameter ¡01. Once the
2.
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. As noted previously, the ICAD 1200 actuator has an optical encoder. At the time of this writing,
this feature is only available on the ICAD 1200 actuator. However, the ICAD 1200 actuator can be
used on ICM's 40 through 150 (1-1/2" through 6").
7. 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.
2. Once you are in the menu, use the UP (3) and DOWN (1) arrows to move through the list of
parameters.
3. To display and/or change the value of the parameter, press the middle button (2) to view the
current settings.
a) To change the value of a parameter, use the up or down arrow to establish the new value for
that parameter.
b) Once the new value for the parameter has been selected, press the middle button to save the
change and return to the menu.
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 for the ICAD to return to the main display (approx. 20 seconds).
DKRCI.EI.HT0.B2.22 / 520H4763
1. Down arrow push button
2. Enter
3. Up arrow push button
4. Display
© Danfoss (AC-SMC/MWA), 11-2011