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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SHEET 45 DI 64
10.3.7.4.5 Temperature limits
When warning limits are exceeded (75°C) the ITVC raises a warning. When alarm limits are exceeded (maximum and
minimum) the ITVC raises an alarm and drive the actuator according to the configured option (inhibit all or go to safe
position)
10.3.7.4.6 Service date
The parameter sets the scheduled ITVC check by maintenance personnel. After this date the ITVC raises a
warning
10.3.7.4.7 Maximum stroke time
The parameter can only be read. It is the maximum preset time to fully open or close the valve. It is used by the ITVC to
de-energize the solenoids when neither limit switches nor position transmitter are provided on the actuator.
10.3.7.4.8 ITVC serial number
The parameter can only be read.
10.3.7.4.9 Valve
In this sub-menu the operator can enter the valve manufacturer and the valve serial number .
10.3.7.4.10 Coil test
This sub-menu allows setting the type of test of solenoid coils. Two options are available: Automatic and Manual. In
Automatic the test is performed every 8 hours, in Manual the test is performed immediately, by pressing the pushbutton
At the end of the test (Automatic or Manual) the display reports the list of solenoid valves and the result of test, failed=
“X” or “ “=passed. If the test fails the ITVC raises an Alarm that can be viewed in the Alarm list. Before running the
test it is mandatoy that the “ Test coil absorption ” was done at least one time.
10.3.7.4.11 Local and remote controls
The sub-menu allows setting the ITVC local and remote control. The following options are available:

Local control: push to run or self-maintained

Remote control: push to run or self-maintained

Remote control type: digital input, bus , digital input and bus

Remote stop: enable or disable remote stop even if the actuator control mode is LOCAL
10.3.7.4.12 ESD shutdown
The sub-menu allows setting the ESD shutdown control. The following options are available:

ESD safety position: close, open, inhibit all (stayput)

ESD shutdown type: do not store (push to run), store (self-maintained), reset (if self-maintained)

ESD command mode: push to run, self-maintained

ESD control signal: active high, active low
By setting the “ESD safety position” also the “Failsafe position” is set.
10.3.7.4.13 Operator menu
By this sub-menu it is possible to gain access to OPERATOR menu (see OPERATOR menu paragraph)
10.3.7.4.14 MRT Maximum Repair Time
The sub-menu allows setting the MRT, Maximum Repair Time. If the MRT time expires and the malfunction is still
present, the ITVC performs the action depending on the type of alarm. See the list of MRT alarms.
10.3.7.4.15 Calibration L/S
The procedure works only if the actuator is equipped with 4-20 mA position transmitter and allows setting the
electronic end of travel in opening and closing.