DVG IOM-ITVC-Basic-05, Installation, Set-Up, Operating & Service Manual

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ITVC Series – Intelligent Total Valve Controller IOM-ITVC-Basic-05
DVG AUTOMATION S.p.A.
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15 Start-up procedure
15.1 General checks
Before powering the ITVC the following check should be done:
 Temperature: it should be correct for the installation and according to the value indicated in the label on the
ITVC enclosure
 Main supply voltage: it should be correct for the installation and according to the attached electrical diagram
and the label on the ITVC enclosure.

Wiring and electrical connections: they should be according to the electrical diagram.

Actuator: the mechanical stop of the actuator should be already set and the actuator should be in its safe
position. Pneumatic/hydraulic connection. Use the IOM’s of the actuator to perform this checks.
 Pneumatic / Hydraulic power: it should be available and according to the actuator and plant specification
By the procedure described in the paragraph “ Actuator control mode ” set LOCAL control mode.
In case of Alarm or Warning (icons or in place of ), reset Alarms and Warnings by the procedure
described in the paragraph “
Visualization of Alarm and Warning
”. If Alarms and Warnings persist, try to solve the
problem with the instruction in Troubleshooting chapter.
The ITVC is supplied with a configuration of its internal parameters (temperature limits, local and remote control
mode, ESD shutdown parameters, MRT time, PST parameters, output relay, etc.) in accordance with the wiring diagram
and user request. By the instruction of this IOM, the user can modify the parameters, but in general it is not necessary.
Here below are described only the test needed to check the correct operation of complete system “ITVC-Actuator-
Pneumatic/Hydraulic Control Unit”.
15.2 End of travel setting

Actuator with electrical limit switches
If the actuator is closed, set the electrical limit switch in closure. Set it to trip slightly before than the actuator reaches
the mechanical stop. The display should indicate position 0.0. By the local pushbutton open the actuator until it
reaches the mechanical stop in opening. Set the electrical limit switch in opening. Set it to trip slightly before than the
actuator reaches the mechanical stop. The display should indicate position 100.0. Repeat the close and open strokes few
times to verify the repeatability of the setting.
The same procedure should be done if the actuator is open. Set the open limit switch, then close the actuator and set the
close limit switch.

Actuator with 4-20mA position transmitter
The “zero” and “span” of the position transmitter are set by the customer to cover the maximum available travel of the
actuator (from mechanical stop open to mechanical stop close). The operator should only acquire the electronic end of
travel by the procedure described in “ Calibration L/S ”, SETUP , Administrator menu. The ITVC will consider the
read values as “stroke limit switches” The procedure allows setting both open and close travel limits.
Once the above checks are completed, switch on the electrical power of
ITVC.
The ITVC display shows the HOME page.
Example of
HOME page
A