Bungard RDC 21-K User manual

rdc21-k-manual-en-k Page 1 / 11
 
Translation of the original instructions
Table of Content
General.........................................................2
Technical Data..............................................2
EG- Declaration of Conformity......................3
Intended Use.................................................4
Safety egulations........................................4
Options.........................................................4
Set Up...........................................................4
Operating......................................................5
Loading of machine.......................................9
Maintenance.................................................9
Spare part list................................................9
Amendment:................................................10
Guarantee...................................................10
Disclaimer of Warranty................................10
Copyright.....................................................10
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: sup[email protected]

rdc21-k-manual-en-k Page 2 / 11
General
The DC 21-K is a machine designed for laboratory dip coating. They can be used to apply liquid photores ?
ists to e.g. miniature etching parts or other substrates, to apply liquid solder mask or any other kind of pro ?
tective or technical coating. Today a more and more popular application is the so called: "sol-gel-applica ?
tion". This machine was developed to meet the demand of a greater variety of speeds, iterations, dipping
and dripping times and heavier work-pieces.

•numeric foil keyboard for easy data entry.
•illuminated Display 90 x 35 mm with 20 x 4 digits.
•up to 10 dip cycles can be stored and loaded again on demand.
•Lifting device operated by precision stepper motor.
•Setting of virtual offset and virtual end switch position prevents unnecessary travel paths and saves time.
•You can distinct between fast distance drive and rather slow dipping/coating drive. Each of the 4 different
drives can be set with an individual speed. In addition the point of speed change can be adjusted. This
way you can program fast drives to the vessel and precise drives into and out of the vessel and this in ac?
cordance to your work-piece and vessel size.
•Distance speed is separately adjustable from 1 to 9999 mm/min and dip drive and coat drive can be sep?
arately set between 1 and 3000 mm.
•On customer request, the DC 21-K can be equipped with a 0.9° stepper motor. With this motor speeds
between 0.5 and 4999,5 mm/min are possible.
•Other speeds can be achieved by customized gears or longer/shorter drive distances by adapting the alu?
minium frame. Ask for an offer!
•The dipping time as well as the drip-off-time (pause time up and pause time down) are separately ad?
justable from 0 s up to 99h : 59min : 59s. This enables the machine not only to coat but also to precisely
develop. This is of great importance with certain photo coatings of the miniature etching technology.
•Up to 1000 iterations of a dip routine are possible.
•lift bar for several work-piece fittings. The dipping height and the sizes of the aluminium profiles can be
easily adapted to even dip-coat bulky items.
•The working range of the lift bar can be adjusted via the control panel. The maximum size of the work-
piece is therefore only limited by the maximum lift range of the machine and the size of your cuvette.
•A optional metal ruler on the side of the vertical bar makes it easy to define the necessary positions to be
entered into the menu
Technical Data
 0-650 mm
 5 kg (reduced max. speed with maximum load)
 12 kg
 !"# 350 x 465 x 965 mm (with Controller H:1030mm)
$%&' 1- 9999 mm/min or 0,5 – 4999,5 mm/min
(&'% 1 - 3000 mm / min or 0,5 - 1500 mm/min
&))! 0 s – 99 h : 59 min : 59 s
*'+ 100-240 V, 50-60 Hz, 120 W
( Up to 1000 times
With stepper motor 0.9° the display shows the same speeds as with the standard-1-8° motor. But the
speed refers to a time of  minutes. ,,-..&#. This solution was chosen for storage and pro?
cessor reasons.
Technical changes reserved
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: sup[email protected]

rdc21-k-manual-en-k Page 3 / 11
EG- Declaration of Conformity
/0)11&$))+
Hersteller / Supplier: Bungard Elektronik GmbH & Co. KG
ilkestraße 1
51570 Windeck Germany
Bevollmächtigte Person für die Zusammenstellung
der technischen Unterlagen:
Person in charge
Jürgen Bungard, Geschäftsführer /general director
ilkestraße 1
51570 Windeck Germany
Product: Tauchbeschichter DC21-k
Dip Coater DC21-k
Hiermit erklären wir, dass die oben beschriebenen Maschinen allen einschlägigen Bestimmungen der Maschinen?
richtlinie 2006/42/EG entspricht.
Die oben genannte Maschine erfüllt die Anforderungen der nachfolgend genannten ichtlinien und Normen:
We hereby declare that the machines described above complies with all relevant provisions of the Machinery Direct ?
ive 2006/42/EC.
The above machine meets the requirements of the following guidelines and standards:
$$..2&3&/0&$+$%..2&3&/
/4$.3&5.&/0&/$%.3&.65./
7$.3&5-&/0&8'4$%.3&5-&/
(7/72..3Sicherheit von Maschinen - Elektrische Ausrüstung von Maschinen - Teil 1: Allgemeine Anforder?
ungen / Safety of machinery - Electrical equipment of machines - Part 1: General requirements
(7/7(93 Sicherheit von Maschinen - isikobeurteilung - Teil 1: Leitsätze / Safety of machinery - isk
assessment - Part 1: Principles
(7/7(9.. Sicherheit von Maschinen - Allgemeine Gestaltungsleitsätze, isikobeurteilung und isikomin?
derung / Safety of machinery - Basic concepts, risk assessment and risk reduction
(7  /7  --.3  ..- Elektromagnetische Verträglichkeit, Anforderungen an Haushaltsgeräte, Elektrow?
erkzeuge und ähnliche Elektrogeräte, Teil 1: Störaussendung / Electromagnetic compatibility equirements for
household appliances, electric tools and similar electrical appliances Part 1: Emission
(7  /7  --.3..:.2 Elektromagnetische Verträglichkeit - Anforderungen an Haushaltgeräte, Elektro-
werkzeuge und ähnliche Geräte - Teil 2: Störfestigkeit - / Electromagnetic compatibility - equirements for household
appliances, electric tools and similar apparatus - Part 2: Immunity
7$&8'4$%.3&5-&/0
$$&$+$%..2&3&/0&5;&/0
Windeck, 10.1.2022
Jürgen Bungard Geschäftsführer
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: sup[email protected]

rdc21-k-manual-en-k Page 4 / 11
Intended Use
The machines are designed for coating positive and negative photoresists and solder masks as well
as other paints or SolGel liquids.
All other applications require our written consent or are at full risk of the user. Bungard GmbH & Co.
KG assumes no liability whatsoever for any damage that may result from the use of the machine.
Safety Regulations
Please apply the general safety rules for working with electrical machines.
There are no tools needed to operate the machine. With any intervention on the machine the warranty will void.
'$))<,+'$$<$ =
$$+)$%,
$$<<+<+%,()+ 
$$>>%>'+'> =
+,
The operator has to provide appropriate safety precautions and equipment. We explicitly exclude any warranty for
damages resulting from running the machine in an atmospheres as described above.
Important: the motor holds the lift bar only when the power supply is switched on. Mount items only to the holder with
power on. Otherwise the lift bar will move downwards. The maximum load is 2 kg at maximum speed.
?)$$+'''$))@
*$'A,)B$ 
%$,
'$>+',
Options
•metal ruler
•stepper motor with 0.9° step angle resolution for speeds between 0,5 and 4999,5 mm
•remote controller
•wall holder for remote controller
•customer specific frame, drive distances and speeds
Set Up
Examine the machine for possible transport damages. If you encounter any problems inform us  the car?
rier immediately.
Carefully transport the machine to its operation site. Do not use the motor or other extending parts as a
handle.
Strip off the packing. Make sure not to damage the tooth belt.
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: sup[email protected]

rdc21-k-manual-en-k Page 5 / 11
Operating
$
On the whole menu, you can correct your entries with the /key. With
the /7!/key you jump to the next position and confirm your input. To
edit a value in a screen, you must press the -key.
8  +
1 After switching on:
Welcome screen with the software version.

/8

%
2 Call for reference drive. 
'$#

3 Drive to HOME POSITION (upper limit switch). %
4 Here you can adjust the offset (= virtual upper end switch), if you press 2. With
1 the machine drives to the last set or loaded offset and you can here continue
reading in line 6.
)),
CC+
5 If you have pressed 2, you can adjust the offset (upper virtual end switch). If
you have to dip small work pieces, you can avoid unnecessary drives and save
time. Values between 0 and 999mm can be inserted. With the standard ma?
chine the lower mechanical end switch will limit the drive at -2-.
9))
%'$
&,:::#
6 Then you are asked to drive to the set virtual home position. ))
%'$#

7 The DC21-K moves to the VI TUAL HOME POSITION... %))
%'$#
8 ....and calls for confirmation.
If you now press “not ok = 2”, the menu starts again with line 2. If you press 1,
you continue with line 9.
9))


9 Pressing 1 you will reach the main menu. Pressing 2........ $>,$+$
CC+
10 … you can now set 1 to 50 calibration cycles before you reach the main menu.
If you set a 2 in this menu, the machine will make a reference drive after 2 iter ?
ations; if you set 20, the reference drive will be done after 20 iterations. A re?
commended value is 10. A calibration after a certain amount of iterations can
be necessary, because the machine can lose steps due to arithmetical reasons
when changing between half-, quarter-, 1/8-, 1/16-step size in the motor resol?
ution.
>$+$
,&,-.#
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: sup[email protected]

rdc21-k-manual-en-k Page 6 / 11
These step losses can add up after many iterations to a range of millimetres,
so the machine will minimally fail to reach the set positions. With the calibration
cycle you can compensate these step losses.
Insert the desired iterations after those the machine shall make a reference
drive and confirm with /7!/. You will automatically enter the main menu.
11 
,%' you can view the current work cycle
, you can edit the current work cycle
5, you can load one of 10 possible cycles
3,% you can save the current cycle
-leave the main menu and make a reference drive
2,' controls the energy settings (standard = 75%)
;, starts the dipping cycle
,4'-,
,2,'
5,;,
3,%
Sub menus to the main menu
Line Key Comment Display
12 1 View Here you can view the parameters of the current cycle.
Press the according number to view each setting. In the first
line it shows the current file you have loaded
%',)
,4,3,
,4,'-,
5,,2,>$
13 1-1 View-V.up Speed for distance and for the coating drive (UP) in mm per
minute. With one you go back to the overview.
4,,
4,,
&
>$
14 1-2 View-V.down Speed for distance and for the dipping drive (DOWN) in mm
per minute. With one you go back to the overview.
4,,'
4,,'
&
>$
15 1-3 View-dist. Here you can control the set stop and speed change points.
The distances are relative!
Please check: the sum of ))DD$ must be
equal or less than the maximum drive distance (standard
machine = 565mm). If this is not the case, the machine will
not drive correct!
,
,
))
>$
16 1-4 View-time Check upper and lower waiting time. ,'......
,......
>$
17 1-5 View-iter View number of iterations in this cycle, the number of itera?
tions after which the machine will make a reference drive
and which motor power is set.
Standard motor power setting is 75%.
(
$>$+$
'E;-F
>$
18 1-6 View-back with 6 you go back to main menu. ,4'-,
,2,'
5,;,
3,%
19 2 edit In the edit sub menu you can edit all parameters. Pressing
the numbers you will reach the sub-sub-menus:
,4,-,
,4,'2,'
5,,;,
3,6,>$
20 2-1 edit-V.up $
Speeds for distance drive UP can be set between 1 and
9999 mm/min. Press the -key to enter the edit-mode:
$
C&
$C9C/
,&,::::#
Enter your desired speed and confirm with /7!/ and you $
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: sup[email protected]

rdc21-k-manual-en-k Page 7 / 11
will automatically get to... &
EEEEE&
,&,::::#
21 2-1-1 edit-V.up 
Speeds for coating drive UP can be set between 1 and
3000 mm/min (speeds are reduced for safety reasons).
Press the -key to enter the edit-mode:

&
$C9C/
,&,5...#
Enter your desired speed and confirm with /7!/ and you
will go back to edit menu.

&
EEEEE&
,&,5...#
22 2-2 edit-V.down '$
Speeds for distance drive DOWN can be set between 1 and
9500 mm/min. Press the -key to enter the edit-mode. In?
sert your desired values and confirm with /7!/ and you
will automatically get to....
'$
C&
$C9C/
,&,::::#
23 2-2-1 edit-V.down '
Speeds for dipping drive DOWN can be set between 1 and
3000 mm/min (speeds are reduced for safety reasons).
Press the -key to enter the edit-mode. Insert your desired
values and confirm with /7!/ and you will automatically
get back to edit menu.
'
&
$C9C/
,&,::::#
24 2-3 edit-Dist. )$,
Position where the fast distance drives changes to the
rather slow dip drive (and vice versa). The value for this po?
sition adds to the set virtual home position (offset). Press
the -key to enter the edit-mode. Insert your desired values
and confirm with /7!/
You can insert values between 50 and 1000 mm. With the
standard machine the lower mechanical end switch will limit
the drive at -2-,
$
$
$C9C/
,-.&,...
25 2-4 edit-DIP Setting of the lower virtual end switch (dipping depth) in
mm. Press the -key to enter the edit-mode. Insert your de?
sired values and confirm with /7!/, You can insert val?
ues between 0 and 1000 mm. The value for this position
adds to the set virtual home position (offset) and the speed
change height (maximum for standard machine: 565mm!)
$(*
$
$C9C/
,.&,...
26 2-5 edit-time up Setting of the upper waiting time (drip off time) between
each iteration. Press the -key to enter the edit-mode.....
......
$C9C/
You can insert between .  $ and ::      -:
   -:$. Confirm each inserted digit with
/7!/-key to store the value. If you entered the wrong
value and you did not yet confirm with the /7!/-key, then
you can correct the value by pressing the /-key.
C......
EEEEEE
$$%+
/C9&:&/C
27 2-6 edit-time down Setting of the upper waiting time (drip off time) between
each iteration. Press the -key to enter the edit-mode.....
'......
$C9C/
You can insert between 0 seconds and 99 hours : 59
minutes : 59 seconds. Confirm each inserted digit with EN?
TE -key to store the value. If you entered the wrong value
and you did not yet confirm with the /7!/-key, then you
can correct the value by pressing the /-key.
'C......
EEEEEE
$$%+
/C9&:&/C
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: sup[email protected]

rdc21-k-manual-en-k Page 8 / 11
28 2-7 iteration Setting the number of iterations of the complete cycle. You
can insert between 1 and 1000 iterations. Press the -key
to enter the edit-mode.
(
$C9C/
,&,...
29 2-8 Back Back to main menu. ,4'-,
,2,'
5,;,
3,%
30 3 Load Here you can load one of the 10 possible stored programs.
Insert the number of the desired program and confirm with
ENTE -. If you load a new program you have to perform a
reference drive (main menu 5 home pos.). When being
asked for changing offset, insert 1= no) for using the loaded
offset.
8)
7>
,&,.
31 4 Save If you have completely set a dipping cycle you can store this
cycle for later use. Press a (free) value and confirm with
ENTE .
Note: if you store a program it will not be automatically act?
ive for making dip drives. Example: Loaded is program #3.
You make some changes in this program and then save
these changes as program #5. Now you are still in program
#3 with the changed parameters. These changed paramet?
ers remain active (even if you switch off the machine) and
they can be seen in the %' menu. You can delete these
current values by loading another program (e.g. program 3
with the old parameters, program 5 with the new paramet?
ers).
%)
7>
,&,.
32 5 Home pos Pressing 5 you can make a reference drive. You will jump
back to line 6 in the menu. When you have entered this
menu, you have to make a reference drive. No option to
cancel or go back.

'$#

33 6 Power Setting motor power.
100% is only needed for high loads and drives at maximum
speed.
Standard setting is 75%.
Setting 50% can be used to reduce vibrations when dipping
small loads and/or slow speeds. If you use this setting with
heavy loads, step loss might be the result, In this case
make a reference drive.
*'
,..F
,;-F
5,-.F
34 7 start Start of the chosen program.
The DC processes the chosen cycle with no interaction of
the operator. You can interrupt the cycle by switching of
power supply. The Display informs you on the drive which is
being performed in this moment and the parameters used
(example on the right).
%$'
..
:..&
5
35 After a cycle is completely finished, the display shows „job
completed“. Pressing 1 you jump to line 11 in the main
menu, with 2 you start the current cycle one more time.
G>$
)
)
Selected parameters - except OFFSET - are stored and can be used next time the machine is switched on.
All measures relate to the lower edge of the mounting beam for holding the samples.
An optional metal ruler at the side of the machine makes entry of the necessary heights very easy.
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: sup[email protected]

rdc21-k-manual-en-k Page 9 / 11
To attach the holder to the beam special nuts with M4 threads are part of delivery. Additional special nuts M3 /
M4 / M5 are available from us.
Another limit switch prevents down drives that exceed the maximum possible way.
*$'A,)B
$%$,
'$>+',
Loading of machine
(!>+'$%<' 
B)>'',
The machine is equipped with a universal carrier.
Inserted into these four are found special nuts M4. You can attach your coating substrates with a screw and a
clip sheet.
aintenance
The machine is mostly maintenance free. We only recommend to
grease once a week the driving rails with a non corrosive oil (e.g.
sewing machine oil).
Spare part list
$ ?$ ! 8!0 8!/
DC21-k CCD4X021 Schrittmotor stepper motor
DC21-k CCD3X014 Zahnriemen Getriebekasten Zahnriemen Getriebekasten Timing belt gearbox
DC21-k CCD3X057 Zahnriemen 14 mm Zahnriemen 14 mm Tooth belt 14 mm CCD
DC21-k CCD4X022 Microschalter Microschalter XY Microswitch XY
DC21-k DC085 Schaltnetzteil extern Schaltnetzteil extern Switching power supply ex?
ternal
DC21-k DC083 Controllerplatine Controllerplatine DC21?
MAIN-V13 best.m.Systemklem?
men
Controller board DC21MAIN-
V13 best.m.system terminals
DC21-k DC082 Schritmotor-Endstufe Schrittmotor-Endstufe D?
C31D V-B bestückt m. Systemk?
lemmen
Stepper motor output stage
DC31D V-B populated m.
system terminals
DC21-k DC081 Folientastatur 4x4 Folientastatur 4x4 Membrane keypad 4x4
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: s[email protected]

rdc21-k-manual-en-k Page 10 / 11
Amendment:
From September 2013 the DC21-k is equipped with a removable control?
ler.
As you can see on the pictures, the controller is fitted onto the bolts of the
machine and secured by pushing downwards.
Guarantee
All machines are submitted before distribution to examination on function and continuous operation firmness.
On the machine we grant a work warranty of 12 months to our customers starting from purchase date on ac ?
curacy in material and processing. We warrant at our choice by exchange of incorrect parts or by repair of the
machine in our house. Old parts change into our possession.
Disclaimer of Warranty
All parts subjected to wear are excluded from this warranty. Non-observance of this manual shall void all war?
ranty claims.
We cannot accept subsequent claims from damage or destruction of work-pieces worked on in the machine,
because we have no knowledge or control over the operating conditions at your site. This is valid in a general
manner also for requirements from damage to articles, buildings and persons as well as the environment.
We do not warrant that the function of the machine will meet the customer's requirements or that the opera?
tion of the machine will to this regard be error free.
In no event will we be liable to the customer for any incidental, consequential, or indirect damages of any
kind, including loss of profit and prosecution for environmental pollution, even if we could have been aware of
the possibility of such damages.
All information was arranged with great care. We reserve ourselves however mistake and technical changes
without previous announcement.
unning the machine in corroding, humid, dusty, extremely hot or explosive atmosphere happens at the
operator's own risk and responsibility.
We explicitly exclude any warranty for damages resulting from running the machine in in corroding, humid,
dusty, extremely hot or explosive atmosphere.
Copyright
© 2023 Bungard Elektronik GmbH & Co. KG
Bungard Elektronik GmbH & Co. KG, ilkestraße 1, 51570 Windeck – Germany
Tel.: [phone] - 0, Fax: [phone] - 29, E-mail: s[email protected]
Pic. 1
Pic. 2