Lauda Ecoline E 200 User manual

LAUDA DR. R. WOBSER
GMBH & CO. KG
P.O. Box 1251
97912 Lauda-Königshofen
Germany
From Series Z 01
from software version 3.4
01/02
YAEE0013
Phone: (+49) (0) 9343/ 503-0
Fax: (+49) (0) 9343/ 503-222
e-mail [email protected]
Internet http://www.lauda.de
Operating Instructions
Ecoline
Immersion thermostats E 200
Bath/ Circulation thermostats
E 206 T, E 212 T, E 215 T, E 220 T
E 203, E 211, E 219, E 225

I
Safety notes
Before operating the equipment please read carefully all the instructions and safety
notes.
If you have any questions please phone us!
Follow the instructions on setting up, operation etc. This is the only way to avoid
incorrect operation of the equipment and to ensure full warranty protection.
•Transport the equipment with care!
•Equipment and its internal parts can be damaged:
−by dropping
−by shock.
•Equipment should only be operated by technically qualified personnel!
•Never operate the equipment without the bath liquid!
•Do not start up the equipment if
−it is damaged or leaking
−the supply cable is damaged.
•Switch off the equipment and pull out the mains plug for
−servicing or repair
−the supply cable is damaged!
•Drain the bath before moving the equipment!
•Have the equipment serviced or repaired by properly qualified personnel only!
The Operating Instructions include additional safety notes which are identified by a
triangle with an exclamation mark. Carefully read the instructions and follow them
accurately! Disregarding the instructions may have serious consequences, such as
damage to the equipment, damage to property or injury to personnel
We reserve the right to make technical alterations!

II
1 BRIEF OPERATING INSTRUCTIONS.......................................................................................1
2 CONTROL AND FUNCTIONAL ELEMENTS.............................................................................3
3 UNIT DESCRIPTION..................................................................................................................4
3.1 Unit description ................................................................................................................. 4
3.2 Pumps.................................................................................................................................4
3.3 Temperature indication, control, and safety circuit ........................................................5
3.4 Materials.............................................................................................................................5
3.5 Serial Interfaces RS 232, RS 485 ......................................................................................6
3.5.1 RS 232 Interface ............................................................................................................................6
3.5.2 RS 485 Interface ............................................................................................................................8
3.5.3 Write commands (data commands to the thermostat)............................................................10
3.5.4 Read commands (data requested from thermostat)................................................................11
3.5.5 Error messages...........................................................................................................................12
3.5.6 Driver software for LABVIEW®...................................................................................................12
4 UNPACKING............................................................................................................................13
5 PREPARATIONS.....................................................................................................................14
5.1 Assembly and setting up................................................................................................. 14
5.2 Filling and emptying........................................................................................................16
5.3 Bath liquids and hose connections................................................................................18
5.4 Connection of external circuits ......................................................................................20
5.5 Cooling the thermostats.................................................................................................. 22
6 STARTING UP......................................................................................................................... 23
6.1 Connection to the supply................................................................................................ 23
6.2 Switching on .................................................................................................................... 23
6.3 Setpoint selection (level 0) ..............................................................................................24
6.4 Menu functions................................................................................................................25
6.4.1 Pump output................................................................................................................................25
6.4.2 Setting the setpoint resolution..................................................................................................26
6.4.3 Parameters...................................................................................................................................27
6.4.3.1 Setting the proportional band of the PID-controller ...................................................................27
6.4.3.2 Setting the reset time of the PID-controller................................................................................28

III
6.4.3.3 Selection of the interface...........................................................................................................29
6.4.3.4 Setting the Baud rate/ transfer rate (serial interface) ................................................................30
6.4.3.5 User calibration..........................................................................................................................31
6.5 Warning and safety functions.........................................................................................33
6.5.1 Overtemperature protection and testing..................................................................................33
6.5.2 Low-level protection and testing...............................................................................................34
6.5.3 Pump motor monitoring.............................................................................................................35
6.5.4 Connection floating contact ”Combination fault” 31 N ..........................................................35
6.5.5 Other error messages.................................................................................................................36
7 SAFETY NOTES......................................................................................................................37
7.1 General safety notes........................................................................................................37
7.2 Other safety notes ...........................................................................................................37
8 MAINTENANCE.......................................................................................................................39
8.1 Cleaning............................................................................................................................39
8.2 Maintenance and repair...................................................................................................39
8.3 Ordering spares...............................................................................................................40
9 TECHNICAL DATA(TO DIN 58966).........................................................................................41
10 ACCESSORIES....................................................................................................................45
11 CIRCUIT DIAGRAM..............................................................................................................47

IV
Explanation of signs
Danger: This sign is used where there may be injury to
personnel if a recommendation is not followed
accurately or is disregarded.
☞Note Here special attention is drawn to some aspect. May
include reference to danger.
➾Reference: Refers to other information in different Sections.

Brief operating instructions
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1 Brief operating instructions
This brief instruction shall give you the possibility to operate the unit quickly. For safe operation
of the unit it is absolutely necessary to read carefully all the instructions and safety notes!
1. Assemble unit and add items as appropriate (➾Section 5).
Take care of the hose tubing connections (➾Section 5.1. and 5.4.).
2. Fill the unit with corresponding liquid. (➾Section 5.3.).
The units are designed for operation with non-flammable and flammable liquids to
EN 61010-2-010. !Take care of the level of the bath liquid! (➾Section 5.2.)
3. Connect the unit only to a socket with a protective earth (PE) connection.
Compare the information on the rating label with the supply details.
4. Using a screwdriver, set the overtemperature cut-out point to a value clearly
above ambient temperature (➾Section 6.5.1.).
5. Switch on at the mains switch
6. Setting of the functions

Brief operating instructions
2

Control and functional elements
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2 Control and functional elements
Clamping bracket
Setting knob
Pt 100
Pump housing
Outlet for bath circulation
Jet nozzle
Heater
Heating
LED green; Supply ON
Menu functions
Mains switch
Setting of overtemperature
switch-off point
Pump connections
−inlet
Pump connections
−outflow
Cooling coil connection
Bath bridge
Bath cover

Unit description
4
3 Unit description
3.1 Unit description
The immersion thermostats E 200 have a device for fixing the immersion thermostat to the bath vessel
(clamping bracket). An adapter is supplied for the deep-drawn LAUDA baths 003, 011, 019 and 025.
The type designation of the Ecoline bath/circulation thermostats consists of the control unit E 200 and the
type of bath.
Example: Control unit E 200 and bath 003 produces Thermostat Type E 203ö.
The letter T (for "Transparent") refers to the baths made of polycarbonate. Type E 203 are supplied with
bath cover. For other baths made of stainless steel bath covers are available as accessory.
(➾Section 10. Accessories)
3.2 Pumps
All units are supplied with a pressure pump with vario-drive. The pump has an outlet with a rotatable bend
(immersion thermostat) which is connected to the pump nipple for external thermostating circuits
(bath/circulation thermostats). An additional outlet provides circulation within the bath. By turning the
setting knob you can choose between both outlets or divide the flows.
The pump chamber of immersion thermostats is rotatable in a restricted way to reach an optimal
circulation. The pump can be used up to viscosities of 150 mm²/s during heating up. To get an optimum
accuracy of control a viscosity of < 30 mm²/s is recommended.
One of five pump output steps can be selected using the operating menu.
On small bath thermostats (e.g. E 203 or E 206 T) and with operation as bath thermostat it is advisable to
use output step 1. The advantage is a low heat generation while having a uniform circulation, that means,
that the unit can work without cooling down to just above ambient temperature.
When operating as circulation thermostat with an external circuit it is preferable to use a larger flow
setting in order to ensure a small temperature difference, especially at higher temperatures and in
conjunction with oil as the bath liquid.
The pump outflow connection can be closed off without causing any damage to the pump.
Pump characteristics (➾Section 9. Technical data)

Unit description
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3.3 Temperature indication, control and safetycircuit
The unit is provided with a 2-line LCD-Display with additional symbols for indicating bath temperature and
settings as well as operating states. The setpoint is input and additional adjustments can be made using
either two or three keys.
Remote operation is possible via an isolated RS 232 interface
A Pt 100 temperature probe is used for measuring the actual temperature and for control. A second Pt
100 serves as temperature probe for the safety circuit (overtemperature protection) which is independent
of the control function
A low-level cut-out switches off the heating on both poles in order to prevent dry operation of the heater.
The pump is switched off through the electronics. The setting of the overtemperature cut-out is adjusted
with a tool on a potentiometer and is always limited to 5 °C above the operating temperature range. A
floating contact "Combination fault" is available (➾Section 6.5.4.).
All settings and fault messages are stored in the memory on supply failure or when the mains switch is
set to OFF
The tubular heater is controlled from a modified PID controller through a triac circuit specially designed to
be unaffected by supply variations and interference.
3.4 Materials
All parts which come into contact with the bath liquid are made from high-grade materials appropriate to
the operating temperature. These are rust-free stainless steel, the plastics PPS, polycarbonate (bath
006 T, 015 T, 012 T, 020 T) and fluoride rubber.

Unit description
6
3.5 Serial Interfaces RS 232, RS 485
3.5.1 RS 232 Interface
Computer Thermostat
RS 232 Interface
Data 9-pin sub-D
socket 25-pin sub-D
socket 9-pin sub-D socket Data
①②①②①②
R x D 223322T x D
T x D 332233R x D
DTR 4 20 4 DSR
Signal
Ground 557755Signal Ground
DSR 6 6 6 DTR
RTS 7 4 77CTS
CTS 8 5 88RTS
①with hardware handshake: When connecting the thermostat to the computer please use a 1:1 cable and
not a zero-modem cable!
②without hardware handshake: The computer needs an operating mode: ”without hardware handshake”.
In the plug of the thermostat a bridge has to be inserted between Pin 7 and 8.
☞−Use screened connecting cables.
−Connect the screen to the plug case.
−The lines are electrically isolated from the remaining electronics.
−Unoccupied pins must not be connected!
The RS 232 Interface can easily be tested with the PC connected, using the MS-Windows operating
system.
On Windows 3.11 with the programme "Terminal" and on Windows 95 with the programme
"Hyper Terminal”.

Unit description
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Protokoll:
☞−The interface operates with 1 stop bit, no parity bit and 8 data bits.
−Transfer rate either 2400, 4800, 9600 (factory setting) or 19200 baud as selected.
−The RS232 interface can be operated with or without hardware handshake (RTS/CTS).
−The command from the computer must be terminated with CR, CRLF or LFCR.
−The response of the thermostat is always terminated with CRLF.
CR = carriage return (hex: 0D)
LF = line feed (hex: 0A)
Example:: Transfer of setpoint 30.5°C to the thermostat.
Computer Thermostat
„OUT_SP_00_30.5“CRLF "
#„OK“CRLF

Unit description
8
3.5.2 RS 485 Interface
Connecting cable:
Thermostat
9-pin sub-D-socket
pin Data
1Data A
5SG (Signal Ground)
optional
6Data B
☞−Use screened connecting cables.
−Connect the screen to the plug case.
−The lines are electrically isolated from the remaining electronics.
−Unoccupied pins must not be connected!
The RS 485 bus absolutely needs a bus termination in form of a terminating network which ensures a
defined unattended time in the high-resistance phases. The bus terminal is defined as follows:
Generally this network is integrated on the plug-in card of the computer (RS 485).
Protocol:
☞−The interface operates with 1 stop bit, no parity bit and 8 data bits.
−Transfer rate either 2400, 4800, 9600 (factory setting) or 19200 baud as selected.
−The RS485 commands are always preceded by the device address. There is
provision for 127 addresses. The address must always have 3 digits. (A000_... to
A127_...).
−The command from the computer must be terminated with CR.

Unit description
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YAEE0013 9
−The response of the thermostat is always terminated with CR.
−CR = carriage return (hex: 0D).
Example: Transfer of setpoint 30.5°C to the thermostat with address 15.
Computer Thermostat
„A015_OUT_SP_00_30.5“CR "
#„A015_OK“CR

Unit description
10
3.5.3 Write commands
(data commands to the thermostat)
Command Explanation
OUT_SP_00_XXX.XX Setpoint transfer with up to 3 places before the decimal point and up
to 2 places behind
OUT_SP_01_XXX Pump output step 1, 2, 3, 4, or 5; 0 = Stop (Standby)
OUT_PAR_00_XXX.XX Setting of control parameter Xp for controller (0.1 – 10°C)
OUT_PAR_01_XXX Setting of control parameter Tn (5 - 60 sec)
OUT_MODE_00_X Keys: 0 = free / 1 = inhibited (corresponds to "KEY")
START Switches thermostat on (from standby).
STOP Switches thermostat to standby (pump, heating, refrigerator off).
☞−For "_" use also " " (blank character).
−Response from thermostat "OK" or in case of error "ERR_X" (RS485 interface e.g.
"A015_OK" or in case of error "A015_ERR_X").
Permitted data formats:
-XXX.XX -XXX.X -XXX. -XXX XXX.XX XXX.X XXX. XXX
-XX.XX -XX.X -XX. -XX XX.XX XX.X XX. XX
-X.XX -X.X -X. -X X.XX X.X X. X
-.XX -.X .XX .X

Unit description
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3.5.4 Read commands
(data requested from thermostat)
Command Explanation
IN_PV_00 Read bath temperature (outflow temperature)
IN_PV_01 Read external temperature TE.
IN_SP_00 Read temperature setpoint
IN_SP_01 Read pump output step
IN_SP_03 Read current overtemperature switch-off point
IN_SP_04 Read current outflow temperature limit TiH.
IN_SP_05 Read current outflow temperature limit TiL.
IN_PAR_00 Read current value of Xp
IN_PAR_01 Read current value of Tn (201 = OFF)
IN_PAR_04 Read current value of KPE
IN_PAR_05 Read current value of TNE (201 = OFF)
IN_MODE_00 Keys: 0 = free / 1 = inhibited
IN_MODE_01 Control: 0 = internal / 1 = external
TYPE Read thermostat type
VERSION Read software version number
STATUS Read thermostat status 0 = OK, -1 = error
STAT Read error diagnosis response:
XXXXXXX !X = 0 no error, X = 1 error
Char. 1 = error (Exx)
Char. 2 = pump error
Char. 3 = low level error
Char. 4 = overtemperature error
Char. 5 = 0
Char. 6 = no external temp. probe (TE FAIL)
Char. 7 = error analogue inputs
0 = OK / 1 = current analogue setpoint input < 4 mA / 2 = current
analogue act. temperature input < 4 mA / 3 both current inputs <
4 mA
For "_" use also " " (blank character).
☞The thermostat response is always in the fixed decimal format "XXX.XX" or for negative
values "-XXX.XX" or "ERR_X". (RS485 interface e.g. "A015_XXX.XX" or "A015_-XXX.XX"
or "A015_ERR_X").

Unit description
12
3.5.5 Error messages
Message Explanation
ERR_2 Wrong input (e.g. buffer overflow)
ERR_3 Wrong command
ERR_5 Syntax error in value
ERR_6 Illegal value
ERR_8 Channel (ext. temperature) not available
ERR_30 Programmer, all segments occupied
3.5.6 Driver software for LABVIEW®
An individual, easy-to-use control and automation software for operating the ECOLINE, INTEGRA
and WK/WKL units can be programmed with the aid of the National Instruments program
development tool LABVIEW®(http://sine.ni.com/apps/we/nioc.vp?cid=1381&lang=US.
In order to make program operation possible on the RS 232/ RS 485 interface, LAUDA provides
drivers specially designed for LABVIEW® which can be downloaded free of charge under
www.lauda.de/spec-e.htm.

Unpacking
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4 Unpacking
After the unit and accessories have been unpacked they have to be examined for possible transport
damage. If there is any damage visible on the unit, the forwarding agent or the post office has to be
notified so that the shipment can be examined.
Standard accessories:
Bath cover E 203 and on all bath/circulation thermostats E 3xx
Closing plugs on all bath/circulation thermostats
Warning label
on all bath/circulation thermostats
Operating Instructions on all immersion and bath/circulation thermostats

Preparations
14
5 Preparations
5.1 Assembly and setting up
a) Immersion Thermostat
−Hang the thermostat into the bath to be thermostated
(baths ➾Section 10. Accessories)
☞−In baths made of plastic the heater should
not have contact to the sides of the bath!
−Do not cover the ventilation opening at the
back of the unit.
Keep clear distance of at least 20 cm.
Adjustment of the pump chamber
−The fixation of the temperature probe has
to be moved upwards approx. 15 mm.
−Adjust the pump chamber.
−Move the fixation of the temperature probe
downwards again (see ill. on the left)
−For all LAUDA baths (plastic and deep-drawn baths),
please fix the adapter (standard accessory) on the
clamping bracket.
−Turn the jet nozzle to face diagonally into the bath. The
outflow for the bath circulation can then be closed.
−Turn the setting knob to the left (see. ill. 1.)
Adjustments of the pump outflows
ill 1
Setting knob turned anticlockwise ill 2 Setting knob medium position ill 3. Setting knob turned clockwise