Pressure names in Emiko

FlexVander uses the analog inputs as pressure lines when pressure control is enabled.

• AI1 is shown as Pressure line 1 in Emiko and uses parameter index #1.
• AI2 is shown as Pressure line 2 in Emiko and uses parameter index #2.

Advanced: pressure factory settings

Use these commands to restore pressure circuit settings for a selected pressure line.

• FVAPRESSFAC1 restores pressure line 1 / AI1.
• FVAPRESSFAC2 restores pressure line 2 / AI2.
• Use FVAFAC for FlexVander product setup and shared controller settings.

Enable pressure and show it in Emiko

Use this sequence when a pressure transmitter has been installed and the pressure value must be used by FlexVander and shown in Emiko.

• Select the pump program in Program Settings.
• Connect the pressure transmitter according to the IO list for the installed model and the transmitter nameplate or datasheet.
• Confirm the analog input hardware setup and jumper setting in the relevant IO list.
• Set VRTYPE# for the electrical signal type.
• Set TMIN# and TMAX# for the transmitter range.
• Configure FVAPRESS and FVAPTRMODE.
• Set pressure limits and hysteresis with VRMIN#, VRMAX#, and VRHYS#.
• Set FVAPRESSDELAY1 or FVAPRESSDELAY2 for how long pressure may take to become valid after pump start.
• Verify live pressure in Emiko before handover.

Choose the pressure input

The selected pump program and transmitter layout decide which analog input, Emiko pressure name, and parameter index to use.

For 4-20 mA and 0-10 V wiring principles, see Analog Transmitter Wiring.

Set signal type

Set the analog input signal type before scaling the transmitter.

• Use the installed model's IO list for the delivered analog input setup. For FlexVander LX4 pro, the controller hardware default is voltage input. For LX9 eco and LX9 pro, the Viking default for AI1 and AI2 is normally 4-20 mA with the analog input jumper installed.
• Use 0-10 V only when the transmitter output is 0-10 V and the hardware jumper setup matches voltage input.
• Use the same parameter index as the selected pressure line.

Enable pressure control

Configure which pumps must be activated for pressure control.

When FVAPRESS is changed from 0 to 1, 2, or 3, FlexVander fills missing pressure control and pressure publish/reporting defaults. Existing nonzero tuned values are kept, except a generic periodic VRLOGMODE# 1 is changed to the FlexVander reporting default 4.

Changing FVAPRESS between enabled pressure modes 1, 2, and 3 preserves already tuned pressure parameters.

Select transmitter layout

Set whether the pressure transmitter must be shared or whether each pressure pump has its own pressure transmitter.

• Shared mode is used where the pressure pumps are connected to the same pipeline system.
• Separate mode is used where each pressure pump is connected to its own pipeline system.
• Program 2 uses shared pressure transmitter layout.

Scale the transmitter

TMIN# and TMAX# define the transmitter measuring range. They are not pressure alarm limits.

• Use the same parameter index as the selected pressure line.
• For a 0..10 bar transmitter, use TMIN# 0 and TMAX# 10.
• For a 0..16 bar transmitter, use TMIN# 0 and TMAX# 16.
• Verify the measuring range against the transmitter nameplate or datasheet before handover.

Measuring range parameters

Set pressure limits and hysteresis

Pressure limits define when the scaled pressure value is too low or too high. Hysteresis prevents repeated status changes when the pressure is close to a limit.

• Use VRMIN# for the low pressure limit.
• Use VRMAX# for the high pressure limit.
• Use VRHYS# for pressure limit hysteresis.
• The values use engineering value multiplied by 10. For example, VRMIN1 60 means 6.0 bar.

For how missing pressure values are filled when pressure control is enabled, see FVAPRESS.

Example: for a 0-16 bar pressure transmitter, TMIN1 0 and TMAX1 16 define the transmitter range. A typical operating setup can be VRMIN1 60 for 6.0 bar, VRMAX1 100 for 10.0 bar, and VRHYS1 5 for 0.5 bar hysteresis.

The actual values must match the pump, pipe system, and irrigation requirement.

With this setup, high pressure status is entered when the pressure is at or above 10.0 bar. After high status is active, it is not released until the pressure is at or below 9.5 bar (VRMAX1 - VRHYS1).

Low pressure status is entered when the pressure is at or below 6.0 bar. After low status is active, it is not released until the pressure is at or above 6.5 bar (VRMIN1 + VRHYS1).

Status transitions are filtered by VRFIL#. Brief spikes should therefore not be treated as immediate final status changes. FlexVander uses the resulting pressure status for pressure control, stop/alarm behaviour, and start blocking according to the selected program and setup.

Pressure limit parameters

Set pressure monitoring delay

Set the time from pump start until valid operating pressure must be reached.

• If valid operating pressure is not reached before the time expires, FlexVander stops the pump and sends an alarm.
• When valid pressure is reached, pressure monitoring continues during operation.
• If the installation normally takes more than 8 minutes to build pressure, increase the delay.

Advanced pressure settings

These settings are special-case tuning values for signal direction, scaling boundaries, filtering, spike handling, and damping. Change them only for noisy pressure signals, special scaling cases, or support-guided tuning.

For how missing pressure-control values are filled when pressure control is enabled, see FVAPRESS. For full analog parameter behaviour, see the shared analog input settings.

Advanced reporting settings

These settings allow FlexVander pressure line values to be reported and shown in Emiko when reporting is part of the solution.

For how missing reporting values are filled when pressure control is enabled, see FVAPRESS. Leave these settings at the FlexVander defaults unless support or a reporting requirement needs a change.

For the complete DataGuard analog workflow, see DataGuard via Analog Inputs. For analog source setup, see the shared analog input settings.

Verify pressure in Emiko

After wiring and pressure setup, start the relevant pump and confirm that the live pressure value is shown in Emiko as the expected pressure line before handover.

If pressure is not shown, verify the signal type, transmitter scaling, pressure enable settings, and Emiko reporting setup.

Related setup

Extra non-pressure sensor values are handled on the relevant sensor setup pages.