fafnir VISY-TD Guide

Technical Documentation
FAFNIR GmbH •Schnackenburgallee 149 c •22525 Hamburg Germany •T.: +49 /40 / 39 82 07-0 •Web: www.fafnir.de
VISY-X
VISY-TD Display (Truck Driver Display)
Edition: 2022-10
Version: 4
Art. no.: 350169

I Table of contents
Table of Contents
1Characteristics........................................................................................................ 1
2Safety Instructions ................................................................................................ 1
3Design and Function ............................................................................................2
3.1 Tank Data ..............................................................................................................................................2
3.2 Error Display.........................................................................................................................................3
3.3 Icons........................................................................................................................................................3
4Installation ..............................................................................................................4
4.1 Mounting...............................................................................................................................................4
4.2 Electrical Connection ........................................................................................................................4
4.3 Communication...................................................................................................................................6
4.4 External Switching Contact.............................................................................................................7
4.5 Configuration.......................................................................................................................................7
4.5.1 Operation ..............................................................................................................................................7
4.5.2 Display....................................................................................................................................................8
4.5.3 Menu Structure ...................................................................................................................................9
5Error Messages ....................................................................................................10
6Servicing................................................................................................................10
6.1 Return Shipment...............................................................................................................................10
7Technical Data.......................................................................................................11
8List of Figures........................................................................................................11
9List of tables ..........................................................................................................11
10 Annex .....................................................................................................................12
10.1 EC Declaration of Conformity......................................................................................................12

Table of contents II
© Copyright:
Reproduction and translation are permitted solely with the written consent of the FAFNIR GmbH. The FAFNIR GmbH
reserves the right to carry out product alterations without prior notice.

Page 1/12 Characteristics
1Characteristics
The VISY-TD Display (Truck Driver Display) is an optional component of the VISY-X system.
With the VISY-X system, highly precise, continuous level measurements in up to 16 tanks
are carried out directly at the petrol station.
The display is used to show information which is important for a fuel tank driver and
displays the ullage of the individual tanks as well as warnings. For this reason, the display
should be placed behind the glass pane of the petrol station building so that it can also be
utilised outside of the petrol station business hours.
2Safety Instructions
The VISY-TD Display is used to display the ullage determined by the VISY-X system in the
tank up to the maximum filling level (capacity). In addition, the current volume is also
displayed. Use the display for this purpose only. The manufacturer accepts no liability for
any form of damage resulting from improper use.
The display has been developed, manufactured, and tested in accordance with the latest
safety engineering practices and generally accepted safety standards. Nevertheless, hazards
may arise from its use. For this reason, the following safety instructions must be observed:
Do not change or modify the display or add any equipment without the prior consent of
the manufacturer.
The display may only be installed by qualified personnel. Specialised knowledge must be
acquired by regular training.
Installers and operators must comply with all applicable safety regulations. This also
applies to any local safety and accident prevention regulations which are not stated in this
guide.
The safety instructions in this guide are marked as follows:
Not observing these safety instructions result in the risk of accident or damag-
es to the VISY-TD Display.
Useful information which ensures continued and correct operation of the TD
XTS level sensor and makes your work easier.

Design and Function Page 2/12
3Design and Function
3.1 Tank Data
If no error was found for the tank to be displayed, the tank data is shown on the display.
In the operating mode “automatic” (default), the VISY-TD Display is permanently activated
and it switches to the next tank automatically.
In the operating mode "manual", the VISY-TD Display is activated by pressing a switching
contact and the data of the first tank is displayed. Repeatedly pressing the switching
contact switches to the tank with the next higher tank number. The display is automatically
deactivated if the switching contact is not pressed for a longer period.
Figure 1: Example for the display of the tank data
Status icon
Provides information about the status of the currently selected tank or about the general
status of the VISY-TD Display (see chapter 3.3).
Tank number
The number of the currently selected tank. For easy reading, the tank number is addition-
ally displayed in the upper right corner of the display in a large font.
Product name
The product stored in the selected tank.
Capacity
The maximum permitted volume in the selected tank.
Volume
The real volume available in the selected tank (not temperature-compensated).
Ullage
The free volume still available in the selected tank up to the maximum permitted tank
content. For easy reading, the ullage is displayed in a large font.
Volume Unit
For tanks with a nominal volume of 1,000,000 litres or more, the volume in no longer
displayed in litres but in m3.
Tank number Product name
Status icon
Capacity
Volume
Ullage
Tank number
Volume Unit

Page 3/12 Design and Function
3.2 Error Display
If the system has determined an error for a tank, this error is shown instead of the tank
data, see following figure:
Figure 2: Example for the display of an error
For the meaning of the individual error codes see following operating instructions:
Technical documentation VISY-Command…, art. no. 207184
3.3 Icons
The icons described in the following are used by the VISY-TD Display to indicate the
various states.
No level change
The level (the volume) of the displayed tank is currently not changing (no dispens-
ing and no delivery).
Dispensing
A dispensing is currently taking place out of the displayed tank, the level (volume)
is falling.
Delivery
A delivery is currently taking place in the displayed tank, the level (volume) is rising.
Wireless
The probe in the tank is connected to the VISY-X system by radio transmission
.
Dispensing or delivery is not indicated in this mode.
Error
There is an error that prevents
the normal display of the data for a single tank or
for all tanks.
Configuration Menu
Setting of language, tank selection, display duration and device information.
Tank number Product name
Tank number
Status icon
Error message
Error code

Installation Page 4/12
4Installation
4.1 Mounting
The VISY-TD Display should be mounted at eye level for better readability. Installation is
recommended behind a glass pane inside the building. The VISY-TD Display can be
attached to the glass pane by using the included Velcro fasteners. The housing cover does
not need to be removed for the mounting.
Before fixing the Velcro fasteners, the glass pane must be cleaned with a suitable agent.
The Velcro fasteners must be attached to the corners of the housing cover.
4.2 Electrical Connection
The VISY-TD Display comes equipped with a 2 metre 7-pole connection cable which
connects it to the VISY-command and to the switching contact. For an extension, this
connection cable must be connected to a junction box with 3 connecting cables:
•2-pole standard cable for connecting the switching contact (NO)
•2-pole standard cable for connecting the power supply unit
•3-pole communication cable with twisted lines for connection to the RS-485
See the following table for the assignments of the 7-pole connection cable:
Wire
Signal
white
Voltage supply, GND
brown
Voltage supply, +5 V
green
RS485 interface, B (-)
yellow
RS485 interface, A (+)
grey
RS485 interface, GND
pink
Button, connection 2
blue
Button, connection 1
Table 1: 7-pole connection cable assignment

Page 5/12 Installation
Power supply
The included 5 V power supply unit is required for voltage supply of the VISY-TD Display
and must be installed in the VISY-Command. For installation this power supply unit is
clicked into the available top hat rail in the VISY-Command.
For electrical connection of the power supply unit to the interface VI-4, the
VISY-Command must be disconnected from the mains.
For voltage supply, connect the terminals N and L of the power supply unit to the termi-
nals N and L of the VI-4 interface, see following figure. Use the enclosed wire ferrules for
this.
Figure 3: Terminals N and L of the power supply of the VI-4 interface
The VISY-TD Display must be supplied with the 5 V DC voltage of the includ-
ed power supply unit. Do not use the 5 V connection terminal of the VI-4 inter-
face (see fig. 3).
To supply the VISY-TD Display with power, connect the white and brown wires of the
connection cable to the + and – terminals of the power supply unit, see following table:
VISY-TD Display
Power supply unit
Wire
Signal
Supply voltage 5 V DC
white
Voltage supply: GND
Terminal -
brown
Voltage supply: +5 V
Terminal +
Table 2: Voltage supply of the VISY-TD Display
VI-4 interface
Status of the
sensor
Extension
Bias
Extension
Reset
Tank
Host
X

Installation Page 6/12
4.3 Communication
The communication between the VISY-TD Display and the VISY-Command is performed
via a galvanically isolated RS485 interface. The communication lines of the VISY-TD Display
are connected to the extension interface of the VISY-Command central unit. 3-wire lines
with interface ground are recommended to increase the interference resistance for this
connection.
Activate the extension interface in the VISY-Command using the VISY-Setup configuration
software. Please follow the relevant information in the VISY-Command and VISY-Setup
operating instructions:
Technical documentation VISY-Command …, art. no. 207184
Technical documentation VISY-Setup V4, art. no. 207158
For connection of the communication lines to the VISY-Command, connect the wires grey,
yellow, and green to the terminals 6, 7, and 8 of the VI-4 interface, see following table and
figure:
VISY-TD Display
VISY-Command
Wire
Signal
grey
RS485 interface, GND
Terminal 6, GND
yellow
RS485 interface, A (+)
Terminal 7, A (+)
green
RS485 interface, B (-)
Terminal 8, B (-)
Table 3: Communication lines of the VISY-TD Display
Figure 4: Extension interface of the VI-4 interface
VI-4 interface
Status of the
sensor
Extension
Bias
Extension
Reset
Tank
Host

Page 7/12 Installation
4.4 External Switching Contact
An external, potential-free switching contact must be connected to the VISY-
TD Display for configuration and for the “manual” operating mode.
The external switching contact is not included in the delivery.
See the following table for the terminal assignment of the external switching contact:
VISY-TD Display
External switching contact
Wire
Signal
blue
Button, connection 1
Connection 1
pink
Button, connection 2
Connection 2
Table 4: Pin assignment of the VISY-TD Display
4.5 Configuration
For the VISY-TD Display with firmware V1.0.1.255 and higher a configuration menu is
available.
4.5.1 Operation
The operation within the configuration menu is triggered by an external switching contact.
In order to access the configuration menu the contact must be pressed for more than 10
seconds.
Following actions can be triggered by pressing the contact:
Short pressing the contact (less than 2 seconds)
•The cursor moves to the next line.
•If the cursor is in the bottom line and another menu item exists, that menu item is
displayed in the bottom line.
•If the cursor is on the last available menu item, it jumps back to the top line
Long pressing the contact (more than 2 seconds)
•If the cursor is in the top line, it returns to the next higher menu or leaves the
configuration
•If the cursor is not in the top line, the selected menu is opened or the configura-
tion is selected/changed
After closing the configuration menu all changes are automatically stored and remain even
after turning off the system.
Do not interrupt the power supply with active configuration menu, since the
configuration is not completely stored at voltage interruption.