Tyco 1540 manual Analogue Output Set Up, Second Channel, Reverse Operation, Reduced output range

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3.15 Analogue Output Set Up

0240

0340

0440

0640

1000

1540

Option

This is an option on Models 1540 that have separate (1560 or 1580) transducers.

3.15.1 Introduction

This applies to the analogue output option only, allowing the parameter to be selected, and the upper and lower limits adjusted, for either one or two channels.

For each analogue output fitted, provision is made for five values to be user selected. These are:

•A1r – Parameter, from Table 2. This is the measured input that is to be represented by the analogue output, for example, Watts or Frequency.

•A1rt – Reading Top. This is the value of the electrical parameter that will cause the analogue output to produce ‘Output Top’.

•A1rb – Reading Bottom. This is the value of the electrical parameter that will cause the analogue output to produce ‘Output Bottom’.

•A1ot – Output Top. This is the value of output that will be reached when the measured electrical parameter is at the reading top value.

•A1ob – Output Bottom. This is the value of output that will be reached when the measured electrical parameter is at the reading bottom value.

To aid understanding, a simple example is shown in Section 3.15.2.

3.15.1.1 Second Channel

The screens following show the set-up for the first analogue channel. Set-up of the second analogue output is identical except that screens show ‘A2’ instead of ‘A1’, i.e. A2r, A2rt, A2rb, A2ot, A2ob.

At the end of the set up for the second analogue output pressing >> will exit the set up system and enter the display mode.

3.15.1.2 Reverse Operation

It is possible to set reading top below reading bottom. In the example of Section 3.15.2, setting reading top to 95 volts and reading bottom to 135 volts would cause the output current to decrease from 20mA to 4mA as the measured voltage increased from 95 to 135 volts.

3.15.1.3 Reduced output range

Note that if the output values are adjusted to reduce output range, accuracy may be degraded. For example, if a 0-20mA capable output is set to operate over 0-1mA, then the specified accuracy will be degraded by a factor of 20.

34 Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03

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Contents Energy Division Crompton Switchboard Integra Contents Setting up Specification Maintenance Appendix a CE Declaration of Conformity Basis of measurement and calculations Serial CommunicationsIntroduction THDUnit Characteristics 3 0440Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Default display Maximum Power Secondary VoltageDemand Calculation RS485 Serial Option Pulse Output OptionAnalogue Output Option Display Screens LayoutStart Up Screens System Screen System %THD Screen Line to Neutral VoltagesLine to Neutral Voltage %THD Line to Line Voltages Line to Line Voltages %THDLine Currents Neutral Current, Frequency and Power Factor PowerLine Currents %THD Active Energy kWh Reactive Energy kVArhDemand Maximum DemandOver Range Setting up Error MessagesKWh and kVArh Display Range Number Entry Procedure Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Access Access with No Password ProtectionAccess with Password Protection Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Changing the Password Full Scale Current Potential Transformer Primary VoltageIntegra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Potential Transformer Secondary Value Demand Integration Time Resets Pulsed Output, Pulse Duration Pulse Rate 12 RS485 Baud Rate 13 RS485 Parity Selection 14 RS485 Modbus Address Analogue Output Set Up Second ChannelReverse Operation Reduced output rangeAnalogue Output Scaling Example Reading A1r or A2rReading Top A1rt or A2rt Reading Bottom A1rb or A2rbPower Factor Output Bottom A1ob or A2obSummary USA Reading European Convention North American Convention Output Phase Angle L1-L2 Calculated Parameter Number Wire Reading Parameter Selection A1r or A2rReading Top A1rt or A2rt Reading Bottom A1rb or A2rb Specification Display Only VersionsDisplay/Transducer Combined 0240, 0340, 0440 121 240V L-L 70.1 139V L-N Measuring Ranges AccuracyReference conditions of influence quantities Display/Tranducer Combined 1000 Auxiliary Power Supply Reference conditions Nominal range of use of influence quantities for measurands Functional rangesScreen StandardsSerial Communications Option Modbus RS485Active Energy Pulsed Output Option Integra 1540 OnlyReactive and Apparent Power Energy resolutionBasis of measurement and calculations Total Harmonic Distortion 1540 only Serial Communications RS485 Port Modbus or JC N2Modbus Implementation Input Registers Parameter Modbus Start Modbus Holding Registers and Integra set up High Low ByteRS485 Implementation of Johnson Controls Metasys Application detailsMetasys release requirements Support for Metasys Integration Support for Crompton Integra operationDesign considerations Metasys N2 application Integra 1560/1580 Point Mapping tableMaintenance Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03

1540 specifications

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