Dungs DLU 02 User manual

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Always read the operat-
ing and installation in-
structions before start-up!
Work on automatic burner
control systems may only
be carried out by trained spe-
cialist personnel!
Never carry out work when
a voltage is present!
This is also important when
exchanging or installing low-
voltage components such as
servo motors, displays or com-
munications components.
Check the functioning of
the device if fuses are
defective.
Only trained specialist
personnel may set the
operating parameters.
The communication con-
nection may only be used
in conjunction with the ap-
proved components.
The in-phase connection
and the protective con-
ductor connection shall be car-
ried out in accordance with the
wiring diagram and checked
before start-up.
Tampering with the elec-
tronics or inappropriate
storage renders the device
warranty null and void.
The automatic burner
control system is speci-
fied with the entries made here
and no features are guaran-
teed.
If these instructions are
not observed, damage
to persons or property may
occur.
Operating and installa-
tion instructions
Power Converter
DLU 02
Description
Microprocessor-controlled power con-
verter for adapting controllers or DDC
systems with power or current interfaces
(0-10 V, 4-20 mA) to eBUS-compatible
automatic burner control systems of
the MPA series.
The device converts analogue power
control signals from an external control-
ler or DDC system into standard eBUS
messages and converts eBUS infor-
mation sent by the automatic burner
control systems into analogue power
or current signals.
Accessories
AM02 display
eBUS connecting cable
(4-wire, 400 mm)
Order data
Type DLU 02
Order No.
230 878 DLU 02
231 582 AM 02 Display

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Table of contents
Overview ......................................................................................................................................... 3
Installation and operation instructions .............................................................................................. 4
Technical data ..............................................................................................................................5-6
Application and setting instructions ................................................................................................. 7
Display and operating unit .............................................................................................................. 8
Display and operating unit - info display ......................................................................................9-12
Display and operating unit - parameterising mode ....................................................................13-16

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Overview
• Microprocessor-based electronics
• Installation in housing to IP20
• Connection system with RAST 5 and
RAST 2.5 plug-in connectors
• 24 VDC/25 mA power supply for
powering external current level
converters
• Selectable input for power actuator
signals either as voltage input of
0...10 V/2...10 V or as current input
of 0...20 mA/4...20 mA.
• 0...10 V/2...10 V output
• 0...20 mA/4...20 mA output
• Integrated eBUS connection
• “Four-wire eBUS” connection (TTL
level) for connecting automatic burner
control systems without fully integra-
ted eBUS connection
• Connection for external display unit
for instrument parameterising
DLU 02 Dungs power converter for coupling controllers and DDC systems with eBUS-compatible auto-
matic burner control systems
The Dungs DLU 02 power converter has the following functions:
Schematic Diagram
Voltage/current input
Input for controlling the modulation of a
connected MPA series automatic bur-
ner control system using eBUS.
The voltage input converts the 0...10 V
voltage to a modulation depth of 0...100
% and sends this via the eBUS to a
connected automatic burner control
system. The voltage input can be used
as a current input by placing a jumper
between terminals 8 and 9. This current
input can be switched from 0..20 mA
to 4...20 mA using a software switch.
Negligible changes to the input para-
meter are not transmitted immediately.
Changes which are smaller than the
hysteresis
(+/- 5 % of the end value) are transmit-
ted after one minute.
Voltage/current input
The DLU 02 supplies the modulation
depth sent by the MPA as an analogue
output variable. A modulation depth
of 100 % (10 V) means 100 % power
whereas a modulation depth of 0 % (0 V)
indicates that burner is running at mini-
mum power. The modulation depth can
be measured as a current signal (0...20
mA) using the current output. This out-
put can be adjusted to 4...20 mA using
a software switch. As the output signals
of the voltage and current outputs are
internally linked, the voltage output also
switches from 0...10 V to 2...10 V.
Power supply output
There is a power supply of 24 VDC for
powering external modules (such as
level converters). This supply has a load
capacity of max. 25 mA.
eBUS interface
The DLU 02 has a fully-functional
eBUS interface. An eBUS supply with
a constant current of 20 mA and SYN
character generator are integrated.
0 %
50 %
100 %
Modulation depth
0 V
0/4 mA
5 V
0/4 mA
10 V
0/4 mA
Input
Hysteresis
“Four-wire eBUS” connection
To connect the DLU 02 to automatic
burner control systems which are only
equipped with a “four-wire eBUS”
interface (e.g. MPA22), the DLU 02
is also tted with such an interface.
Both devices can be interconnected
using a special connecting cable
without the need for a special MPA/
eBUS adapter.
Connection for external display
unit
The DLU 02 is parameterised using
an external display unit which is not
required for operation. The display unit
is a special accessory.
Alternatively, you have the option
of parameterising the DLU02 with
MPA-Vision.
DLU 02
power
converter
PC with
MPA-Vision MV5
eBUS
PC adapter
Automatic
burner control
system
eBUS
Regulator
Analogue control variable
0...10 V, 0...20 mA
or 4...20 mA
Analogue return signal
0...10 V, 0...20 mA
or 4...20 mA
Display
Mains
Other eBUS-
subscriber

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Installation and Opera-
tion Instructions
Installation
You can install the device in any po-
sition.
Electrical connection
Always carry out connection and pro-
tective grounding in accordance with
the local regulations and the wiring
diagram.
Fuses
External fusing of the DLU02 with a
6.3A max. slow-blow fuse.
If a fuse is faulty, check the
functioning of the device!
Start-up
The device must be de-energised before
installation or maintenance work is car-
ried out. Only trained specialist person-
nel may set the operating parameters.
The communication connections and
the connection to the display and opera-
ting unit may only be used in conjunction
with the approved components. Always
carry out the in-phase connection in
accordance with the wiring diagram and
check on start-up.
Do not connect the current
output with GND!
Performance during faults
If there is a communication fault,
measure the eBUS supply. The func-
tionality of the eBUS system can be
established using a simple eBUS tester
or using a laptop and the MPA-Vision
software.
If these installation and
operation instructions are
not followed, damage to persons
or property may occur. Therefore
always comply with the instruc-
tions. Tampering with the elec-
tronics renders the warranty null
and void.
Wiring diagram

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Nominal voltage ~(AC) 230 V – 15 % … + 10 %
Frequency 50 Hz
Performance rating ~ 8 VA
Fuses Back-up fuse, max. 6.3A, slow-blow
Protection type IP20, IP40 must be ensured by installation
IEC 529 (DIN 40 050)
Ambient 0 °C … + 60 °C
temperature
Humidity DIN 60730-1
Electrical Coded plug system RAST 5 and RAST 2.5
connection Wiring must be executed in accordance with local regulations
and the wiring diagram. Extra-low voltage is isolated.
Protective ground- None
connection
Weight 0,45 kg
Technical Data
[ V ]
[ Hz]
[ V A]
[ A ]
IEC 529IEC 529
MPA…
ϒC
0
+60
DIN 40040
PE
[kg]
kg

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Technical data
Voltages and currents
Communications
Dimensions:
Voltage input 0/2...10 V
Input resistance = 4.75 kΩ
Current input 0/4...2 mA
Input resistance = 500 Ω
Voltage output 0/2...10 V
Load <= 500 Ω
Do not connect the output to GND!
eBUS 4-wire isolated
2-wire with 20 mA constant current sour-
ce
Cable length max. 2m
Output power 24 VDC, max. 25 mA
To eBUS specications
Layer 1/2: V1.0
Layer 7: V1.2
PC service program MPA-Vision for Windows 95
Connection using eBUS-PC interface
127
78
48
140
106,2
14,2
4,2Ø
63,5
129

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Application and Setting
Instructions
Setting the voltage and current input
You can dene whether the input is to be used as a voltage
or current input using terminals 8 and 9. If the connections
stay open, the input will function as a voltage input. If there
is a jumper between them, the input functions as a current
input. The use and the voltage or current range is selected
using parameters nos. 3 & 4.
Parameter No. P03 Analogue input
OFF Deactivated
ON Activated
Parameter No. P04 Jumper Input
OFF No 0...10 V
ON No 2...10 V
OFF Ye s 0...20 mA
ON Ye s 4...20 mA
Parameter No. P05 Analogue output
OFF Deactivated
ON Activated
Parameter No. P06 Voltage output Current output
OFF 0...10 V 0...20 mA
ON 2..10 V 4...20 mA
Settings of the voltage and current input
The use and the voltage or current range of the two outputs
is selected using parameters nos. 5 & 6.
Setting the communications addresses
The DLU02 possesses two parameters for setting the eBUS
addresses. Parameter no. 1 returns the eBUS address of the
DLU, and is precongured to the address 10H. Parameter no.
2 is the eBUS address of the connected automatic burner
control systems. The standard address for this is 03H.
Important for use with the MPA 16.04 auto-
matic burner control system
MPA 16.04 for the software versions up to V2.23 expects
the eBUS address of 10H as the address of the DLU, which
means that parameter 1 must be set to this value. Also,
MPA 16.04 sends the current performance and not the
modulation depth to the DLU because of the older eBUS
specications.

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Display and
Operating Unit
Operating the display
The display and operating unit is principally only required for the parameterising of the DLU 02. If the display is connected,
the device switches to operating display mode after switch-on and the execution of system tests. Only the text “DLU 02”
is output. Using specic key combinations, you can switch the device to info display mode or parameter display mode.
The individual modes are described below.
+
Switch-on
PSiGL/A
h
l,m3
System tests
PSiGL/A
h
l,m3
Operating display
Press for
approx. 0.5 secs.
Press for
approx. 2 secs.
PSiGL/A
h
l,m3
Info display
PSiGL/A
h
l,m3
Parameter display

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Display and
Operating Unit
Info display
Info display
The information display can only be reached via the operation display. It gives information on the software version, the
software date, the device number, the production date, the DLU eBUS address, the MPA eBUS address, the analogue input
status, the analogue input offset, the analogue output status, the analogue output offset and the cycle time for modulation
depth request. After 20 seconds, the device exits this display and either times out or switches to the previous display.
Info display
approx. 0.2 secs.
approx. 0.2 secs.
Timeout
approx. 20 secs.
approx. 0.2 secs.
Timeout
approx. 20 secs.
Timeout
approx. 20 secs.
PSiGL/A
h
l,m3
PSiGL/A
h
l,m3
PSiGL/A
h
l,m3
Press for approx. 0.5 secs.,
until symbol “i” appears.
Then release key.
12
Info display 0
Information on DLU software version
Info display 1
Information on the DLU software date
(DDMMYY)
Info display 2
Information on the device number

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Info display 6
Analogue input status
OFF = Analogue input deactivated
ON = Analogue input active
Display and
Operating Unit
Info display
approx. 0.2 secs.
approx. 0.2 secs.
Timeout
approx. 20 secs.
approx. 0.2 secs.
Timeout
approx. 20 secs.
Timeout
approx. 20 secs.
PSiGL/A
h
l,m
3
PSiGL/A
h
l,m
3
PSiGL/A
h
l,m
3
34
12
Timeout
approx. 20 secs.
PSiGL/A
h
l,m
3
Info display 3
Information on the production date
Info display 4
Information on the DLU eBUS ad-
dress in hexadecimal characters
Info display 5
Information on the MPA eBUS ad-
dress in hexadecimal characters

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Display and
Operating Unit
Info display
34
approx. 0.2 secs.
PSiGL/A
h
l,m
3
PSiGL/A
h
l,m
3
PSiGL/A
h
l,m
3
Back to
operating display
Timeout
approx. 20 secs.
approx. 0.2 secs.
approx. 0.2 secs.
Timeout
approx. 20 secs.
Timeout
approx. 20 secs.
Info display 7
Analogue input offset
OFF = 0...20 mA or 0...10 V
ON = 4...20 mA or 2...10 V
Info display 8
Analogue output status
OFF = Analogue output deactivated
ON = Analogue output active
Info display 9
Analogue input offset
OFF = 0...20 mA or 0...10 V
ON = 4...20 mA or 2...10 V

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Display and
Operating Unit
Parameterising mode
Parameterising mode
The Parameterising mode provides the facility of displaying important operating parameters and setting them with the
keyboard. When adjusting the settings in Parameterising mode, set the access level to 3 (Service) so that all the para-
meters in the Service level can be set in MPA-Vision. After 20 seconds, the device exits this display and either times out
or switches to the previous display. When you exit the parameter display, the device automatically restarts to update the
changed parameters.
+
Parameterising
display
1
Press for approx. 2 secs.
until “P00” appears
i
PSGL/A
h
l,m3
Timeout
approx.
20 secs.
with restart
12
Press the keys in this
order and hold them
down for
approx. 2 secs.
-> Access Level 2
(OEM) is activated.
i
PSGL/A
h
l,m3
approx 0.2 secs.
Timeout
approx. 20 secs.
without restart
2
Enter the access level for EEPROM.
It is set automatically on entry to
Level 3 (Service).

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Display and
Operating Unit
Parameterising mode
+
+
12
3
ca. 0,2 s
i
PSGL/A
h
l,m3Timeout approx.
20 secs.
with restart
4
–
i
PSGL/A
h
l,m3
approx. 0.2 secs.
–
Change the eBUS address
using the “+” and “-” keys
Timeout approx.
20 secs.
with restart
Change the eBUS address
using the “+” and “-” keys
Displays the DLU’s eBUS
communication address
Displays the MPA’s eBUS
communication address

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
+
+
approx. 0.2 secs.
i
PSGL/A
h
l,m3
Timeout approx.
20 secs.
with restart
–
i
PSGL/A
h
l,m3
approx. 0.2 secs.
–
Change the switch
using the “+” and “-” keys.
The “+” key switches to
ON and the “-”
key switches to OFF.
Timeout approx.
20 secs.
with restart
Change the switch
using the “+” and “-” keys
The “+” key switches to
ON and the “-”
key switches to OFF.
34
56
Display and
Operating Unit
Parameterising mode
Analogue input status
OFF = inactive
ON = active
Analogue input
OFF = 0...20 mA, or 0...10 V
ON = 4...20 mA, or 2...10 V

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
Display and
Operating Unit
Parameterising mode
+
+
56
approx. 0.2 secs.
i
PSGL/A
h
l,m3Timeout approx.
20 secs.
with restart
–
i
PSGL/A
h
l,m3
approx. 0.2 secs.
–
Change the switch
using the “+” and “-” keys.
The “+” key switches to
ON and the “-” key switches
to OFF.
Timeout approx.
20 secs.
with restart
Change the switch
using the “+” and “-” keys
The “+” key switches to
ON and the “-” key switches
to OFF.
Restart
Back to
operating display
Analogue output status
OFF = deactivated
ON = active
Analogue output
OFF = 0...20 mA, or 0...10 V
ON = 4...20 mA, or 2...10 V

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Printed in Germany • Rösler Druck • Edition 02.08 • Nr. 240 164
We reserve the right to make any changes in the interest of technical progress.
Head Offices and Factory
Karl Dungs GmbH & Co. KG
Siemensstraße 6-10
D-73660 Urbach, Germany
Telephone [phone]
Fax [phone]
Postal address
Karl Dungs GmbH & Co. KG
Postfach 12 29
D-73602 Schorndorf, Germany
e-mail [email protected]
Internet www.dungs.com