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5171

 

31.07.13 TB 
22.10.14 TB

 

LTR-1200

 

User Manual

 

 

 

1  Device Overview 

 

 

 

Features 

General Description 

Rack Enclosure Size: 

1U, 400mm in Depth 

The  LDD  /  TEC  19"  rack  enclosure  LTR-1200  is  a 
highly  configurable,  ready-made  carrier  system 
facilitating  the  integration  of  up  to  4  devices 
belonging  to  either  the  LDD-Family  of  laser  diode 
drivers  or  the  TEC-Family  of  Peltier/TEC 
controllers.  The  system  caters  for  power,  cooling 
and communication. 
The  combination  of  built-in  devices  (models, 
number)  is  freely  selectable  by  the  customer,  their 
application will dictate the choice (12V or 24V) and 
number  of  internal  primary  DC  power  supplies. 
Meerstetter  Engineering  will  take  care  of  the 
integration  and  provide  a  fully  configured  turnkey 
solution. 
Up  to  4  fans  drag  air  sidewise  through  the  rack 
enclosure.  Their  speed  is  managed  by  intelligent 
fan  control  on  a  dedicated  PCB  such  that  air-
cooling  becomes  effective  upon  prolonged  use  at 
high ratings. 
For table-top operation, the rack mounting brackets 
can be removed. 
The current status of the rack enclosure and of the 
built-in  devices  are  indicated  on  the  front  side 
display  (2x40  characters)  and  by  dual  color  LEDs. 
The  most  important  settings  (parameters  of  the 
built-in devices and of the front side data interfaces) 
can be adjusted over the 5-way navigation switch. 
For  advanced  operation  and  configuration,  all 
internal  devices  can  be  addressed  over  one  of  the 
electrically  isolated  interfaces;  therefore  the 
originally  supplied  TEC  and/or  LDD  Service 
Software’s can be used. 
For  continuous  monitoring  and  control  by 
customers'  systems,  the  serial  communication 
protocol  'MeCom'  can  be  used:  on  one  hand,  it 
allows  direct  control  of  the  each  built-in  LDD  and 
TEC  device,  on  the  other  hand  it  allows  polling 
further information about the overall system status. 
For  fast  signals  (such  as  LDD  pulse  triggering) 
three  digital  (electrically  isolated)  input  lines  are 
available.  Also,  one  digital  output  is  available  (

e.g.

 

for error indication). 
The  integration  of  third  party  hardware  (such  as 
fiber-coupled  diode 

lasers)  is  possible 

if 

dimensional requirements are met. 

AC Input Voltage: 

100..240V / 50..60Hz 

Space for Devices: 

Up to 4 LDD / TEC 
Drivers; Third-Party 
Devices (Max 8 Outputs) 

Data Interfaces: 
Electrically Isolated 
(>1kV) 

- Ethernet 10/100 MBit/s 
- USB (Virtual Com Port) 
- RS485 
- RS232 

Digital I/O Signals: 
Electrically Isolated 
(>1kV) 

- 3 Digital Inputs  
- 1 Digital Output 

Human Machine 
Interface (HMI): 

Backlit 2x40 Character 
Display and 5-Way 
Navigation Switch for 
Local Monitoring and 
some Main Settings 

Status Indication: 

2 LED (Dual Color) 

Forced Air Cooling: 

Temperature-Dependent 
Fan Speeds 

Max Ambient 
Temperature: 

Full load up to 40°C 
Half load up to 45°C 

Advanced Operation 

Remote Control: 

LDD / TEC Service 
Software and 
'MeCom' Protocol 

Applications 

Optics (Laser Diodes, Crystals, …): 

 

e.g. 

autonomous turn-key solutions for 

comprehensive control (supply, cooling) of 
ps lasers 

 
Electronics (Detectors, RF References, …): 

 

e.g.

 low-noise camera cooling 

 
Instrumentation (Microscopy, Materials, 
Biochemistry, …): 

 

e.g.

 precision multi-temperature control 

(thermal zones) 

Summary of Contents for LTR-1200

Page 1: ...01 Email contact meerstetter ch Website www meerstetter ch Meerstetter Engineering GmbH ME reserves the right to make changes without further notice to the product described herein Information furnish...

Page 2: ......

Page 3: ...tware Default Address 9 2 4 4 Access over Third Party Software 9 2 4 5 Communication Fault Management 9 3 Technical Data 10 3 1 Elements and Configurations 10 3 2 Front Panel 10 3 2 1 LCD 10 3 2 2 Nav...

Page 4: ...ated interfaces therefore the originally supplied TEC and or LDD Service Software s can be used For continuous monitoring and control by customers systems the serial communication protocol MeCom can b...

Page 5: ...the two options below For more information about how to connect please refer to 2 4 Communication Interfaces Ethernet preferred if possible Remote Control over big distances Simultaneous connections m...

Page 6: ...us IP Gateway IP Network Mask FANC Settings Device Status T 1 Detailed T 1 Settings Object Temperature Device Overview Device Status Sink Temperature Actual Output Current T 2 Detailed T 2 Settings La...

Page 7: ...rvice Software Default Device Interface RS232 Baud Rate Interface RS485 Baud Rate HMI Device Address Internal Maximal Temperature Internal Maximal Fan Speed 2 3 1 2 LDD Laser Diode Current Actual Lase...

Page 8: ...represents only the output on the Back Plane of the LTR 1200 One device can be connected to more than one Terminal Channel represents the output channel of one device e g CH1 or CH2 in the case of TEC...

Page 9: ...fic LDD TEC Device Address in the Display menu In this case the Device Address 0 will be routed to the Service Software Default Device 2 4 4 Access over Third Party Software For Third Party Software c...

Page 10: ...etter Engineering with your enquiry Important note concerning the integration of LDD Family devices into LTR 1200 rack enclosures The internal wiring from an LDD device to its back panel terminal can...

Page 11: ...IN2 RES7 RES7 RES2 Input 3 IN3 RES6 RES6 RES3 Output 1 OUT RES5 RES5 RES4 GND Digital IO Ground All digital I Os are ESD protected and have a series and pull down resistor 3 2 4 2 Characteristic Symbo...

Page 12: ...t Characteristics Driver VOD1 Differential Output Voltage Loaded RL 100 RS422 2 0 3 6 V VOD2 Differential Output Voltage Loaded RL 54 RS485 1 5 3 6 V 3 2 6 RS232 3 2 6 1 Pinout Pin Function 2 TxD Data...

Page 13: ...ody Model 15 kV Electrical Characteristics Speed Communication Speed Baud Rate Software Setting 4800 1M bps 3 2 8 Ethernet 3 2 8 1 Specifications The Ethernet meets the following specifications IEEE 8...

Page 14: ...equipped such that they are potential free i e independent of other built in devices Please contact Meerstetter Engineering with your enquiry 3 3 1 TEC Sensors Pinout Fully pre confectioned cables ar...

Page 15: ...tetter Engineering at request 3 3 2 1 Part List Description Manufacturer Manufacturer Part Nr Connector Solder 4 Way Binder 99 4909 00 04 Cable 4 Way Shielded Kabeltronik 2 LifYCY TP 820400800 3 3 2 2...

Page 16: ...please refer to the LDD Family or TEC Family User Manuals Error Numbers 100 and above are HMI LTR specific 3 4 1 RTOS Errors Code Description Error Condition Remedy 80 RTOS_STACKOVERFLOW One task has...

Page 17: ...31 07 13 TB 22 10 14 SK Page 17 18 5171C 3 5 Physical Dimensions All dimensions are in mm Rack mounting brackets are removable 3 6 License Notice The LTR 1200 Software is built on FreeRTOS http www f...

Page 18: ...Comments Special Requirements Output 3 Output 4 TEC PT100 4 Wire _____A TEC PT100 4 Wire _____A PT1000 2 Wire _____V PT1000 2 Wire _____V NTC NTC LDD No LPC _____A LDD No LPC _____A LPC _____mA _____...

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