Omega LDP-144 Series Bedienungsanleitung

LDP-124, LDP-126, LDP-144 AND LDP-146

OPERATOR´S MANUAL FOR CLOCK MODELS

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User's Guide

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Page :1

Page : 2

CONTENTS

DESCRIPTION SECTION PAGE

===========================================================================

IMPORTANT SAFETY CONSIDERATIONS 13

UNPACKING AND INSPECTION 24

MAIN FEATURES 34

MODELS 45

MODEL LDP-1XX-C0, DISPLAY TIME USING THE FORMAT MM : SS 4.1 5

MODEL LDP-1XX-C1, DISPLAY TIME USING THE FORMAT HH : MM 4.2 5

MODEL LDP-1XX-C2, DISPLAY TIME USING THE FORMAT HH : MM : SS 4.3 5

GENERAL SPECIFICATIONS 56

FRONT VIEW, DESCRIPTION 67

REAR VIEW, DESCRIPTION 77

WIRING 88

POWER SUPPLY, RECOMMENDED WIRING 8.1 8

FUSES 8.2 8

CONTROL LINES, ALARM AND SERIAL OUTPUT 8.3 8

NOTES 8.4 8

EXCITATION VOLTAGE FOR SENSORS 8.5 9

POWER- UP AND OPERATION 99

REAL TIME CLOCK 9.1 9

RUN TIME CLOCK 9.2 9

UP / DOWN TIMING 9.2.1 9

CONNECTIONEXAMPLES 9.2.2 10

RUN TIME ALARM SETTING 9.3 10

SERIAL DATA OUTPUT 9.4 10

CONFIGURATION 10 10

POWER SELECTION 10.1 10

INSTRUMENT CONFIGURATION 10.2 10

CONTROL BOARD POSITION 10.2.1 11

DIP SWITCH AND JUMPERS LOCATION 10.2.2 11

DIP SWITCH CONFIGURATION 10.2.3 11

JUMPERS CONFIGURATION 10.2.4 12

SERIAL DATA OUTPUT CONFIGURATION 10.2.5 12

INSTALLATION 11 13

MECHANICAL DIMENSIONS 12 13

APPENDIX 1: LDP-1XX-CX AS SLAVE REPEATER 14

APPENDIX 2: TIME-NET CONFIGURATION AND CONNECTIONS 15

WARRANTY 16

OTHER PRODUCTS 17

Page : 3

INSTALLATION

PRECAUTIONS.- Theinstallationandthe

future use of this unit

must be done by suit-

able qualified person-

nel.TheunithasnotAC

(mains)switch,itwillbe

inoperationassoonas

power is connected.

The installation must

incorporateanexternalmainswitch.

The unit has a protection fuse incorporated on the AC socket, if it is

necessarytochangeor replace,usethetimelagfuseaccordingIEC

127/2andthevaluesindicatedbelow.

200 mA when the unit is operating at 230 Vac

400 mA when the unit is operating at 115 Vac.

Install also the necessary devices to protect the operator and the

process when using the unit to control a machine or process where

injurytopersonnelordamagetoequipmentorprocess,mayoccuras

a result of failure of the unit.

Seeparagraph8,WIRINGandparagraph10,CONFIGURATIONand

checkthatalljumpersareonthe correct position.

SAFETY PRESCRIPTIONS.-

TheunithasbeendesignedandtestedunderEN-61010-1rulesand

isdeliveredingoodcondition.Thisopera-

tor's manual contains useful information

for electrical connections. Do not make

wiring signal changes or connections

whenpoweris

applied to the unit. Make signal connec-

tionsbeforepowerisappliedand,ifrecon-

nection is required, disconnect the AC

(mains) power before such wiring is at-

tempted.

Installtheunitin placeswithagoodventilationtoavoidtheexcessive

heating.Andfarfromelectricalnoisesourceormagneticfieldgenera-

torssuchaspower relays, electricalmotors,speedcontrolsetc...

The unit cannot be installed in open places. Do not use until the

installationisfinished.

POWERSUPPLY.-

Thepowersupplymustbeconnectedtotheadequateterminals (see

theconnectioninstructions).Thecharacteristicsofthepowersupply

areshowedonthelabelontherearpart.Pleasemakesurethattheunit

is correctly connected to a power supply of the correct voltage and

frequency.

Donotuseotherpowersupplyotherwisepermanentdamagemaybe

causedtotheunit.

Donotconnecttheunittopowersourcesheavilyloadedortocircuits

which power loads in cycle ON-OFF or to circuits which power

inductiveloads.

SIGNALWIRING.-

Certainconsiderationsmustbegivenwheninstallthesignalinputand

control wires. If the wires are longs can act like an antenna and

introducetheelectrical noisetothe unit,therefore:

Donotinstallthesignalinputorcontrolwiresinthesameconduitwith

power lines, heaters, solenoids, SCR controls etc....and always far

fromtheseelements.

When shielded wires are used, connect the shield to the common

terminalandleaveunconnectedtheotherendoftheshieldanddonot

connecttothemachineground.

1.- IMPORTANT SAFETY CONSIDERATIONS

SAFETY CONSIDERATIONS

PRESCRIPTIONS.-

Before starting any operation of adjustment, replacement,

maintenanceorrepair,theunitmustbedisconnectedfromanykind

ofpowersupply.

Keeptheunitclean,toassure goodfunctioning andperformance.

Use for it a clean and humid rag. Do not use for the frontal lens

abrasiveproducts,solvents,alcohol,etc...becauseitstransparence

couldbedamagedand this may causedifficultyfora correct vision

ofthereading. Topreventelectricalor

fire hazard, do not ex-

posetheunittoexces-

sivemoisture.

Donotoperatetheunit

inthepresenceofflam-

mablegasesorfumes,

suchasenvironment

constitutes a definite

safetyhazard.Theunit

isdesignedtobe mounted inametalpanel.

Iftheunitshowssignsofdamage,orisnotabletoshowtheexpected

measures, or has been stored in a bad conditions or a protection

failurecanoccur,thendonotattempttooperateandkeeptheunitout

ofservice.

IN CASE OF FIRE

1.- Disconnect the unit from the power supply.

2.-Givethealarmaccordingtothe local rules.

3.-Switchoffalltheairconditioningdevices.

4.-Attackthefirewith carbonicsnow,donotuse waterinanycase.

WARNING : In closed areas do not use systems with

vaporizedliquids.

CONNECTIONS

All wiring connections are made using push-in and Sub-D cable

connectors.

There is a separate connector block for power supply and

input&controlsignal.Pleasemakesurethateachconnectorblockis

connectedontheadequateplace.

Thewirecrosssection recommendedforpowersupply is2.5mm2.

PANEL MOUNTING

Verifythatthepanelcut-outiscorrectlyaccordingtothedimensions

indicated on page 13 with a minimum depth of 150 mm. (5.9").

Install the fixation pieces in the lateral guides of the unit by its rear

partandthenturnthescrew firmlyagainstthepanel,untiltheunitis

totallyholdon.

Seeparagraph12 onpage13.

Page : 4

2.- UNPACKING AND INSPECTION

It is advisable to do a detailed reading of this Manual before mounting the instrument. This Operator's Manual

contains all the technical specifications : electricals as well as mechanics, both necessary to do a correct

installation and also a good use of the instrument.

At the same time the user will acquire the knowledge needed to obtain the best performances of the product.

Check that inside the present cardboard box, there are the following :

1 Instrument Model LDP-1XX-C0, C1 or C2.

1 Operator's Manual.

1 Connector for Power Supply.

1 Screw-clamp connectors, 4 pins female for alarm output.

1 Sub-D male connector of 9 pins and 1Sub-D female connector of 15 pins

2 Pieces for fixing the unit against the panel.

If there are some doubts or inquiries about the present instrument, please contact OMEGA

ENGINEERING´S customer service department.

When the shipment arrives remove the Packing List and verify that you have received all equipment.

Then inspect the box and the instrument, and if there is evidence of damage caused by bad handling during

the transport, it is advisable to make a careful inspection of all damages making a note of all of them and to

pass on this information directly to the Transport Company.

If this occurs but with insured material, ask the Transport Company for instructions about submitting a claim

3.- MAIN FEATURES

The Large Displays for real time clock (12 or 24 hours) or run up or run down clock are made up of

four different series.

The clock accepts inputs from contact closure and other sensor inputs to start, stop and reset the run

time clock.

Transducer excitation of 15 Vdc nominal is available. The units feature a run time alarm with optically

isolated transistor switch output, and RS422 level two wire transmission of the displayed time.

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.

Serie LDP-144-XX : 4 digits type LED, seven segments, red or green colour with 100 mm (4") height.

Serie LDP-146-XX : 6 digits type LED, seven segments, red or green colour with 100 mm (4") height.

The complete reference for each instrument is obtained replacing the ""XX" by the corresponding

references for every Model (C0, C1 & C2). See paragraph 4.

Page : 5

The common features for all series are the following:

MECHANICAL.- Housed in a rugged extruded aluminium profile housing for panel mounting or free

standing. Finished in anodized black colour. The frontal lens is mounted with a special

rubber profile which provides the front part of the unit with an IP-65 protection.

CONTROL SIGNALS .- Threeinputs,sharingonecommonreturn.Theoperatingmodedependsoninterlinking

of the three control lines

CONNECTIONS.- For output alarm are made using one screw-clamp connector of 4 terminals located on

the rear part of the unit.

Forcontrolsignals are madeusingoneSub-D connector of 15terminalslocatedon the

rear part of the unit.

For serial data output are made using one Sub-D connector of 9 terminals located on

the rear part of the unit.

The recommended wire cross section is 0.5 mm2.

For Power Supply uses a push-in cable connector with 2 terminals for power and 1

terminal for earth ground.

The recommended wire cross section is 2.5 mm2.

The fuse is located in the Power Supply socket, as well as the spare fuse.

MEMORY.- 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.

RESET.- By remote push-button using the connector of 15 terminals on the rear part.

Only for run time clock.

4.- MODELS

4.1.- MODEL LDP-1XX-C0. Display time using the format MM: SS

Real time clock : 59 minutes, 59 seconds.

Run time clock : 99 minutes 59 seconds.

Real time clock or run time clock is internally DIP switch selectable.

Run up or run down controlled by internal dip switch.

4.2.- MODEL LDP-1XX-C1. Display time using the format HH : MM

Real time clock : 12 or 24 hours selectable.

Run time clock : 99 hours 59 minutes.

Real time clock or run time clock is internally DIP switch selectable.

Run up or run down controlled by internal dip switch.

4.3.- MODEL LDP-1XX-C2. Display time using the format HH : MM : SS

Real time clock : 12 or 24 hours.

Run time clock : 99 hours, 59 minutes, 59 seconds.

Real time clock or run time clock is internally DIP switch selectable.

Run up or run down controlled by internal dip switch.

Page : 6

OUTPUTS

SERIALOUTPUT . . . . . . . Outputintendedfortransmissiontothe

remotedisplayfittedwithaclock

displayasaslaveclockdisplay.

Signal . . . . . . . . . . . . . . . . RS422level1200baudfixedrate.One

transmissioneachsecondwhile

showingrealtimeorruntime.

String. . . . . . . . . . . . . . . . . Transmits--NUL--(CR)

or--NUL--NUL--(CR)whensettingtime

orenteringalarmstate.

Datastring

Standard mode . . . . . HH.MM.SSfor6decadeversion.

HH.MMor MM.SSfor4decadeversion.

Newport mode . . . . . . HHM.MS.Sfor6decadeversion.

HHM.Mor MMS.Sfor4decadeversion.

Characterlength . . . . . . . . One startbit,8data bitsnoparityand

onestopbit.

Handshake . . . . . . . . . . . . No handshake:onedatastring

transmittedeachsecond.

EXCITATIONVOLTAGEOUTPUT

Vexc . . . . . . . . . . . . . . . . . +15Vdc±20%.@100 mA. max.

Ripple . . . . . . . . . . . . . . . . 100mVac50/60Hz.

ENVIRONMENTAL

Temperature

Operating . . . . 0 to +50 ºC (32 to 122 ºF).

Storage . . . . . . -20 to +85 º C (-4 to 185 ºF).

Relativehumidity . . . . . . . . 0to85 %notcondensed.

Protection . . . . . . . . . . . . . IP65.(Frontpartonly).

MECHANICAL

Dimensions . . . . . . . . . . . . Seetableinpage13.

Panelcutout . . . . . . . . . . . Seetableinpage13.

Depth. . . . . . . . . . . . . . . . . Seetableinpage13.

Weight. . . . . . . . . . . . . . . . Seetableinpage13.

Casematerial. . . . . . . . . . . Aluminiumextruded.

Finished. . . . . . . . . . . . . . . Anodized,blackcolour.

ELECTRICAL

Standardpowersupply . . . 115 Vac. ±10% 50 / 60 Hz.

(230Vacoptionally)

Consumption . . . . . . . . . . . Seetableinpage13.

5.- GENERAL SPECIFICATIONS

DISPLAY

Type . . . . . . . . . . . . . . . . . 4 or 6 digits, 7segments,redorgreenLED.

Heightdigit . . . . . . . . . . . . 57 (2.3") or 100 mm.(4")

Rangemáx.. . . . . . . . . . . . 99 : 59 or 99 :59 : 59

Brightness . . . . . . . . . . . . . Set by switch for 25%, 50%, 75%

or100%(normal).

REAL TIME CLOCK.

Type . . . . . . . . . . . . . . . . . 59 mm 59 ss (model C0)

12/24hoursselectable

Timesetting . . . . . . . . . . . . Byvoltfreecontactclosureinputs

secondsreset,minutesadvance

andhoursadvance.

Timeaccuracy . . . . . . . . . . ±1minutepermonth.

Powerdown . . . . . . . . . . . . Maintainstimeforminimum2years

withoutmainspower.

RUN TIME CLOCK

Type . . . . . . . . . . . . . . . . . 99 mm 59 ss, 99 hh 59 mm

or 99 hh 59 mm 59 ss

Timerresolution . . . . . . . . . 1second.

Timeruncertainty . . . . . . . . 1secondmax.perstart/stopsequence.

Timermemory . . . . . . . . . . Runtimemaintainedfor2yearsminimum

butnotupdatedwithmainsremoved.

Alarm . . . . . . . . . . . . . . . . . Oneminuteoronesecondresolution

(oneminuteonlyonmodelC2)setby

externalclosureinputs.

Alarmenable . . . . . . . . . . . Controlledbyinternalswitch.

Alarmoutput . . . . . . . . . . . Opticallyisolatestransistorswitch

30 V / 30 mA capacity.

Alarmindication . . . . . . . . . Clockstop,displayflashesandalarm

outputactivates.

Initialization . . . . . . . . . . . . Byoperationofoneormorethe

controlinputs.

CONTROL LINES

Type . . . . . . . . . . . . . . . . . Threeinputssharingonecommonreturn.

Threshold . . . . . . . . . . . . . Rising : +2.3 V min., +3.6 V max.

Falling:+0.9Vmin.,+2.5 V max.

Signalhysteresis . . . . . . . . 0.4Vminimum.

Maximumsignal . . . . . . . . . ±30 V.

Loading . . . . . . . . . . . . . . . 100 KΩtocommonfor+5Vsignal

18KΩloadingbeyond+5/-0.6V.

Load . . . . . . . . . . . . . . . . . 1 KΩ±5%loadmaybeinternally

jumperedtocommonortotheexcitation

supplyforeachcontrolline.

Responsetime. . . . . . . . . . 200mSmaximum:internally

debouncedforcontactclosureinputs.

Activelevel. . . . . . . . . . . . . Internallyjumperedtobeactiveeitherwith

lowlevel/fallingedgeorhighlevel/rising

edgeinputsindependentlyforeach

controlline.

CONTROL MODES

Type . . . . . . . . . . . . . . . . . Theoperatingmodedependson

interlinkingofthethreecontrollines.

Onecontrol . . . . . . . . . . . . Toresetandrunwhenactiveandstop

wheninactive.

Twocontrols . . . . . . . . . . . Onetorunwhenactiveandstopwhen

inactiveandtheothertoreset.

Twocontrols . . . . . . . . . . . Onetoalternatelystartandstopandthe

othertoreset.

Threecontrols . . . . . . . . . . Onetostart,onetostopandoneto

reset.

Page : 7

6.- FRONT VIEW, DESCRIPTION

Models LDP-126-C2

LDP-146-C2

Models LDP-124-C0 & C1

LDP-144-C0 & C1

Display seconds for model C0

Display minutes for model C1

colon

Display minutes for model C0

Display hours for model C1

Display hours for model C2 Display minutes for model C2

7.- REAR VIEW, DESCRIPTION for all series

Display seconds for model C2

Power Supply

Vac + Earth,

fuse and spare fuse.

Attaching screws

Connector Sub-D 15

pins for Control Lines

and voltage excitation

output

Connector Sub-D 9

pins, for serial data

RS422 output

4 ways plug-in screw

connector for alarm

output

Page : 8

8.- WIRING

8.1.- POWER SUPPLY, RECOMMENDED WIRING

POWER SUPPLY

115 Vac (230 Vac Optional).

FUSE and spare fuse.

Main switch

8.2.- PROTECTION FUSES

8.3.- CONTROL LINES, ALARM AND SERIAL OUTPUT

Power Fuse

Supply value

230 Vac 0.2 A

115 Vac 0.4 A

TABLE 4

A : +Alarm

B : Noconnection

C : Noconnection

D : -Alarm

Serial RS422 connector

Control lines connector Alarm connector

The unit has a protection fuse located on the power supply socket.

If this fuse must be replaced or changed because the power supply

is changed, use the time-lag fuse according to IEC 127/2 with the

values indicated on the table.

1.- Vexc.

2.- Vexc.

3.- Start

4.- GND

5.- GND

6.- Minutes

7.- GND

8.- Noconnection

9.- Vexc.

10.- Stop

11.- Reset

12.- GND

13.- Seconds

14.- Hours

15.- GND

1.- SerialA.

2.- SerialB.

3.- Noconnection

4.- Noconnection

5.- GND

6.- Noconnection

7.- Noconnection

8.- Noconnection

9.- Noconnection.

8.4.- NOTES

The HOURS, MINUTES & SECONDS inputs are for contact closure to GND, and are pulled up to the auxiliary 15

volt rail through 4.7 KΩ.

The STOP, START and RESET inputs are normally configured to be pulled up to the auxiliary 15 volt rail through

1 KΩ, butmaybe internally jumpered to bepulled to GND through 1 KΩ, or pulled toGND through a high resistance

of 100 kΩ.

Debouncing for 200 mS time constant is normally incorporated on the three control inputs, but may be disabled by

removing internal jumpers.

Vexc is the Excitation Voltage for sensors supplied by the instrument (pins 1, 2 & 9).

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.

This means that each start/stop condition may be inaccurate by up to one second.

Page : 9

8.5.- EXCITATION VOLTAGE FOR SENSORS

The unit supplies the Excitation Voltage for sensors, through control lines connector.

Ifthecurrentrequiredforthesensors installedismorethan100mAthendonotusethisterminal.Installotherexternal

power supply. See paragraph 5 for technical specifications

9.- POWER-UP AND OPERATION

9.1.- REAL TIME CLOCK

At power-up, the unit displays the message MAStEr for 6 decade version or MASt for 4 decade version and will

start to operate.

If a failure occurs then will display the messages CHIP or SET.

The message CHIP means that the failure is the internal

hardware and the message SET means that the data stored in

the memory is damaged and it must be restored.

The restore data operation can be made while the instrument

isinnormaloperation or while the error message SET is on the

display using the control lines HOURS, MINUTES & SEC-

ONDS.

Reaction to the control lines is once per second.

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.

9.2.- RUN TIME CLOCK

At power-up, the unit displays the message MAStEr for 6 decade version or MASt for 4 decade version and will

start to operate.

If a failure occurs then will display the messages CHIP

orSET.ThemessageCHIPmeansthatthefailureisthe

internalhardwareandthemessageSETmeansthatthe

alarm value stored in the memory is damaged and it

must be restored.

UsethecontrollinesRESET,START&STOPtocontrol

the timer. Once the unit is displaying the run time clock

the three control lines operate as show in the table.

An active signal can be either active high or active low

depending upon the internal configuration of the unit as shown in paragraph 10.2.4.

The factory default settings are for contact closures to GND for all three inputs. Reaction to the control lines is once

per second.

Noteonthe4decadeclocktheruntimeclockmaybeeitherforhoursandminutesorforminutesandseconds.During

run time hours and minutes, the colon will flash on and off every second while the clock is running to indicate the

clock is running.

Terminal Function

14 Hours Increment hours

6 Minutes Increment minutes

13 Seconds Reset seconds

An active signal

applied to pin :

11 Reset Resets/Preset the timer

3 Start Starts the timer

10 Stop Stops the timer running

Starts the timer if not running

Function

9.2.1.- UP / DOWN TIMING

The run time clock has two basic modes of operation; a run up clock or a run down clock. These modes are

controlled by a internal DIP switch (See DIP SWITCH CONFIGURATION in paragraph 10.2.3).

Run up clock

Reset will clear the clock to zero. When the alarm point is reached, if the alarm is enabled, the clock will stop

and the whole display will flash and the alarm output will be activated, until the clock is reset. If the alarm is

disabled, the clock will run up to 99 minutes 59 seconds (or 99 hours 59 minutes) and then roll over zero.

Run down clock

Reset will preset the clock to the alarm point. When zero is reached, if the alarm is enabled, the clock will stop

and the whole display will flash and the alarm output will be activated, until the clock is reset. If the alarm is

disabled, the clock will run down to zero and then underflow to 99 : 59.

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