Related Manuals for Omega LDP-124
Summary of Contents for Omega LDP-124
- Page 1 User's Guide http://www.omega.com e-mail: info @ omega.com LDP-124, LDP-126, LDP-144 AND LDP-146 OPERATOR´S MANUAL FOR CLOCK MODELS...
- Page 2 CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
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Page 3: Table Of Contents
POWER SUPPLY, RECOMMENDED WIRING FUSES CONTROL LINES, ALARM AND SERIAL OUTPUT NOTES EXCITATION VOLTAGE FOR SENSORS POWER- UP AND OPERATION REAL TIME CLOCK RUN TIME CLOCK UP / DOWN TIMING CONNECTION EXAMPLES RUN TIME ALARM SETTING SERIAL DATA OUTPUT CONFIGURATION... -
Page 4: Important Safety Considerations
1.- IMPORTANT SAFETY CONSIDERATIONS INSTALLATION PRECAUTIONS.- incorporate an external main switch. The unit has a protection fuse incorporated on the AC socket, if it is necessary to change or replace, use the time lag fuse according IEC 127/2 and the values indicated below. 200 mA when the unit is operating at 230 Vac 400 mA when the unit is operating at 115 Vac. -
Page 5: Unpacking And Inspection
The main features of each serie are the following : Serie LDP-124-XX : 4 digits type LED, seven segments, red or green colour with 57 mm (2.3") height. Serie LDP-126-XX : 6 digits type LED, seven segments, red or green colour with 57 mm (2.3") height. -
Page 6: Models
Non volatile static RAM type, to maintain the real time clock running in power down or in case of power failure during two years. It allows 100,000 cycles ON/OFF. On the run time clock the data and alarm value will be stored also for a maximum of 2 years. -
Page 7: General Specifications
Alarm output ... Optically isolates transistor switch 30 V / 30 mA capacity. Alarm indication ..Clock stop, display flashes and alarm output activates. -
Page 8: Front View, Description
6.- FRONT VIEW, DESCRIPTION Models LDP-124-C0 & C1 LDP-144-C0 & C1 Display minutes for model C0 Display hours for model C1 Models LDP-126-C2 LDP-146-C2 Display hours for model C2 7.- REAR VIEW, DESCRIPTION for all series Connector Sub-D 15 pins for Control Lines... -
Page 9: Wiring
The connections to Serial A, Serial B and GND are for the RS422 data output. Run time uncertainty The control inputs are sensed eight times per second, but the actual run time clock is incremented or decremented in synchronism with the built in real time clock once per second. -
Page 10: Excitation Voltage For Sensors
To obtain a complete reset in a real time clock configuration, connect terminals 14 & 13 to GND simultaneously. The display can be switched in to Run Time Clock mode by inputting an active signal on to any of the three control lines START, STOP or RESET. -
Page 11: Connection Examples
9.3.- RUN TIME ALARM SETTING The alarm is a 4 decade alarm only. On the 6 decade clock, the alarm setting is for hours and minutes only and on the 4 decade clock the alarm point can be for either hours and minutes or minutes and seconds. -
Page 12: Control Board Position
10.2.2- DIP SWITCH AND JUMPERS LOCATION 10.2.3- DIP SWITCH CONFIGURATION Switch Function number Alarm Run time Display brightness Display brightness Clock range Clock range Serial data output Function selection Page : 11 Control board position for instruments series LDP-4X-CX Switch position Disable... -
Page 13: Jumpers Configuration
Function terminator resistor for the RS422 switch debounce of 5 Hz for the STOP line switch debounce of 5 Hz for the START line switch debounce of 5 Hz for the RESET line Jumper Application for STOP line for START line for STOP line for RESET line for START line... -
Page 14: Installation
11.- INSTALLATION 1.- Prepare a panel cut-out with the dimensions indicated on paragraph 12. 2.- Slide the instrument (1) into the cut-out. 3.- Slide the two fixation pieces (3) with T shape by both lateral sides of the instrument, such as it is shown on the drawing below. -
Page 15: Appendix 1: Ldp-1Xx-Cx As Slave Repeater
APPENDIX 1: MODEL LDP-1XX-CX AS SLAVE REPEATER. FUNCTIONAL DESCRIPTION: Special configuration of Models LDP-1XX-CX for serial RS-422 repeater, to be used as slaves. The Serial port connection which is the only that keeps in operation, it is used to enter the data coming from the Master. -
Page 16: Appendix 2: Time-Net Configuration And Connections
Don’t connect RS-422 (JP1) line termination. Note Shielded twisted-pair cable, must be used for connections. MASTER shield COMPATIBILITY TABLE AMONG MASTER-SLAVE master slave LDP-124-C LDP-126-C LDP-144-C LDP-146-C Page : 15 SLAVE SLAVE Don’t connect the cable shield to the receiver units (slaves). -
Page 17: Warranty
© Copyright 1998 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without prior written consent of OMEGA ENGINEERING, INC. - Page 18 DATA ACQUISITION HEATERS ENVIRONMENTAL MONITORING AND CONTROL Page : 17 OMEGA...Of Course! Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors Infrared Pyrometers Transducers & Strain Gauges Load Cells &...