Yokogawa 414 Batch Controller Manual de usuario

BATCH CONTROLLERSMODEL 414A November 1995

3.1 FRONT PANEL OPERATIONThe four key operation of the Batch Controller is straight forward.SETTING THE BATCH QUANTITYThe Batch quantity is programme

The Batch quantity can only be set while the instrument is in non-operationalstate such as when the batch is complete, or if the batch process has bee

DISPLAYED INFORMATIONThe display will normally show the Batch Total, which is the total count for thecurrent batch and is reset on each new batch. The

3.2 BATCH OPERATIONSThe Batch Control functions can be programmed, during Calibration, to operatein one of two ways.1. At the end of the batch, the S

2. If Automatic Reset is programmed, a new batch is commenced each time theRUN key is pressed.The Batch Controller can also be programmed, during Cali

3.2.1 Control Relay OutputsThe two output relays can be set up to control a single valve or a dual valve withslow stop and/or slow start. Alternativ

3.2.2 Signal TimeoutThe Signal Timeout period defines a time interval which is used to detect if theflow has stopped. If there is no signal input fo

3.2.3 End of BatchAn End of Batch is defined as being when the Batch Quantity is reached, theflow has stopped and the Signal Timeout period has expir

3.2.4 Auto RestartThe Batch Controller can be programmed to continually repeat the batchprocess. This mode of operation is selected during the progr

3.2.5 Automatic Overrun CompensationThe Batch Controller can be programmed to automatically compensate for anyoverrun at the end of a batch.Typically

3.3 CALCULATION OF RATE AND TOTAL3.3.1 Analog InputThe flowrate, R, is calculated as follows:if the linear relationship is selected.R= SA + Cif a sq

3.3.2 The Cutoff PointBecause many transducers do not always exactly transmit 4mA (0mA, 1V or 0V)when they are at zero rate, it is often necessary to

3.3.3 FilteringFrequency fluctuations caused by pulsating flow through a flowmeter, oftenmakes the Rate impossible to read with any precision. The B

A 90% 99%10021242463610 5 1115 8 1720 11 2225 14 2835 20 4045 25 5160 34 6975 43 8690 52 10399 57 113Table 1 - Response to a step Input (in seconds).

3.4 TOTAL CONVERSIONThe Total Conversion feature enables the rate to be displayed in one engineeringunit (eg. gallons/minute) and the totals to be di

3.5 THE OUTPUT PULSE AND FLOW ALARMAn OUTPUT PULSE is available on terminal 10 for driving remote countersand produces a pulse each time the Accumul

Connection of Output Pulse and Flow Alarm are as follows:Driving an External Relay or Impulse CounterDriving a Logic Input such as a PLC or Electronic

4. OPTIONS4.1 THE RS232/422/485 INTERFACE OPTIONWith this option installed, the circuits for both the RS232 and RS422/485 areprovided as standard.

4.1.2 Multipoint CommunicationMultipoint Communication is a system whereby a number of instruments can beaddressed over a dual twisted pair interface

Figure 2 RS485 InterfaceOptions 27 HostComputerTwisted PairLoad120 ohms400 SeriesInstrument400 Series

CONTENTS1. Introduction 3 1.1 Model Number Designation 4 2. Specification 53. Operation 73.1 Front Panel Operation 83.2 Batch Op

4.1.3 Communication ProtocolThe Model 414A has a real time clock and enables the time and date to be setand printed on tickets. The date format can

A CTS input is provided, and will prevent the instrument from transmitting anyfurther characters to a printer if the printer buffer is full. The CTS

5. CALIBRATIONThe Calibration routine enables the Setup Parameters to be programmed, as wellas enabling the input signals to be checked.The calibratio

On first entering the Calibration routine, the display will show:CAL Setup Program parameters (see section 5.1).Batch Enter Batch parameters (see sect

5.1 PROGRAMMING THE SETUP PARAMETERSStep Display Description TextRef1 CALBATCHOPTIONTESTENDSelect the Calibrate mode to setup programparameters.Selec

Step Display Description TextRef9 CUTOFFxx.xThe signal Cutoff.Enter as a % of the Span.3.3.210 F dPt Number of decimal points with which the Rate isto

5.2 ENTERING THE BATCH PARAMETERSStep Display Description TextRef1 BATCHOPTIONTESTENDCALEnter Batch Parameters.Option (if installed)Check Input Signa

Step Display Description TextRef6 COUNTdnupThe Batch Total counts Up or Down.Count down from the batch quantity.Count up from zero.3.27 T OUT The Sig

5.3 PROGRAMMING OPTIONSStep Display Description TextRef1 OPTIONSTestEndCALBatchOptions (if installed).Check the Input Signals.Exit to normal operatio

Step Display Description TextRef8 SIGNALrs232rs422Signal Type.RS232.RS422/RS485.9 ID NO 01 - 99Unit Identification Number.None.Id number.10 P TYPE

6. Input Circuits 39 6.1 The Signal Input 396.2 Remote Switch Inputs 417. Installation 42 7.1 General 427.2 Wiring Designations for the M

5.4 CHECKING THE INPUT SIGNALStep Display Description TextRef 1 TESTOPTIONSCALBATCHENDCheck the Input Signals.Options (if installed).Program Setup P

6. INPUT CIRCUITS6.1 THE SIGNAL INPUTThe basic circuit of the input is shown below. Both the current and voltagesignals are fed to a data selector b

Transmitter Powered by the Flow Computer4-20mA Loop with External Power SupplyINPUT CONNECTIONS40 Input Circuits

6.3 REMOTE SWITCH INPUTSRemote push-buttons can be connected to the Model 414A to duplicate theswitches on the front panel. The switches are wired a

7. INSTALLATION7.1 GENERALThe terminal designations for the Model 414A Batch Controller are given on thefollowing pages. The cutout hole in the pane

Overall shields should be connected to the case earth at the instrument end only.This connection should be as short as possible and connected to the e

7.2 WIRING DESIGNATIONS FOR THE MODEL 414ATerminal Model 414A1 Calibration Link2 Signal Ground3 Not To Be Used4 Remote Display Switch5 Remote Batch S

8. TROUBLE SHOOTINGBatcher does not reset.The Signal Timeout has been set to an excessively long periodand has not timed out at the end of the last ba

Counting erraticallyThis can be caused by lack of shielding on the input.Shield the input signal with the shield earthed at the BatchController only.

8.1 ERROR CODESThe instrument has extensive self test facilities and will display an error code ifit detects an invalid condition. If the instrument

1. INTRODUCTIONThe Model 414A Batch Controller accepts analog flow signals and automaticallycontrols the batching of fluids via a one or two stage con

IndexAccess, 33Accumulated Total, 10Auto Reset, 9Auto Restart, 16Automatic Overrun Compensation, 17Backlite, 4Batch Limit, 10Batch Set, 8Battery Bac

Slow Start, 13Slow Stop, 13Specification, 5Starting, 9Stop Key, 13Stopping, 9Switching Current, 6Switching Power, 6Terminal, 44Ticket, 28Time Clock, 2

1.1 MODEL NUMBER DESIGNATIONThe Model number of an instrument describes which input and output optionsare installed and the AC mains voltage rating.

2. SPECIFICATION GeneralDisplay: 6 digit LCD. 0.7" (17.8mm) high digits.Display Update Rate: 0.25 seconds.Transducer Supply: 8-24VDC field adjus

Relay OutputsMaximum Switching Power: 1250VA.Maximum Switching Voltage: 250VAC, 30VDC.Maximum Switching Current: 5 Amps.Pulse OutputPulse Width: 10mSe

3. OPERATIONThe Model 414A Batch Controller uses a low power CMOS microprocessor toperform all control functions and calculations.The instrument is fu