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MIQ/CR3; DIQ/CR3

4 - 36

ba64107e08

05/2006

4.6.3

Fixed current value

Function

With the

Fixed current value

function, you can test the operativeness of

the instruments connected to the outputs: output different current
values to the output and, while doing so, check the behavior of the
connected instrument.

Note

The settings for other functions in the

Current output

menu, as for

example

PID controller

and

Recorder

, are retained while the

Fixed

current value

is carried out.

Setting

Selection/Values

Explanation

Current output

Fixed current
value

Using

Save and quit

, the

nominal amperage that
was input as

Inom

output.

Inom

0 ... 20 mA

The nominal amperage
that is output.

Oxley Creek WWTP Water Reclamation (WTW - ba64107e08_xIQ_CR3) Vendor Manual

Doc Id: VM20

Owner: Howard Witten

Active Date: 15/12/2006

Содержание DIQ/CR3

Страница 1: ... 05 2006 MIQ CR3 DIQ CR3 Operating manual Power OK IQ SENSOR NET combi output module Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Active Date 15 12 2006 ...

Страница 2: ... errors in this manual Therefore we are sure you will understand that we cannot accept any legal claims resulting from the data figures or descriptions Note The latest version of the present operating manual can be found on the Internet under www WTW com Copyright Weilheim 2006 WTW GmbH Reprinting even as excerpts is only allowed with the explicit written authorization of WTW GmbH Weilheim Printed...

Страница 3: ...4 1 2 Limit indicator 4 3 4 1 3 Proportional output 4 5 4 2 Entering editing the name of an output 4 12 4 3 Linking the output with a sensor 4 13 4 4 Deleting a link with an output 4 14 4 5 Setting the relay outputs 4 15 4 5 1 Relay action 4 16 4 5 2 System monitoring 4 17 4 5 3 Sensor monitoring 4 18 4 5 4 Limit indicator 4 19 4 5 5 Frequency output 4 21 4 5 6 Pulse width output 4 22 4 5 7 Cleani...

Страница 4: ...0 4 9 1 Switching on the maintenance condition 4 41 4 9 2 Switching off the maintenance condition 4 41 5 Maintenance and cleaning 5 1 5 1 Maintenance 5 1 5 2 Cleaning 5 1 6 Technical data 6 1 7 Indexes 7 1 7 1 Explanation of the messages 7 1 7 1 1 Error messages 7 1 7 1 2 Info messages 7 1 Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Activ...

Страница 5: ...f It consists of a system operating manual and the operating manuals of all the components used Please file this component operating manual into the ring binder of the system operating manual IQ Sensor Net Operating Manual System Operating Manual Ring Binder IQ Sensor Operating Manual MIQ Module Operating Manual MIQ Terminal Operating Manual Component Operating Manuals Oxley Creek WWTP Water Recla...

Страница 6: ... all MIQ modules regarding stability leakproofness and weather resistance It also provides the same wide variety of installation options stacked mounting canopy mounting tophat rail mounting etc Instrument types The MIQ CR3 and DIQ CR3 combi output modules differ in their compatibility with the individual IQ SENSOR NET system families Terminal strip The combi output module has the following electr...

Страница 7: ...circuits carrying mains voltage must only be connected to the relay contacts by a qualified electrician General safety instructions Safety instructions in this operating manual are indicated by the warning symbol triangle in the left column The signal word e g Caution indicates the danger level Warning indicates instructions that must be followed precisely in order to prevent serious dangers to pe...

Страница 8: ...ee function and operational safety of the combi output module is only guaranteed if the generally applicable safety measures and the special safety instructions in this operating manual are followed during its use The failure free function and operational safety of the combi output module is only guaranteed under the environmental conditions that are specified in chapter 6 TECHNICAL DATA Safe oper...

Страница 9: ...s of the MIQ CR3 and IQ SENSOR NET Software requirements for the use of the Cleaning function MIQ CR3 from version 2 20 up Controller from version 2 20 up If you use a terminal with a software version from 2 20 up the Clean display flashes If you use an MIQ T2020 terminal with a software version lower than 2 20 the Clean display does not appear The measured value display of the sensor flashes Soft...

Страница 10: ...put module for such applications Switching voltages and switching currents on the relay contacts must not exceed the values specified in chapter 6 TECHNICAL DATA Protect electrical circuits against currents that are too high with an electrical fuse Only single phase consumers can be switched with the relays Under no circumstances must multiphase consumers be switched with the aid of several relays...

Страница 11: ...nd with sealing ring scope of delivery of the combi output module Tools Cable stripping knife Wire stripper Phillips screw driver Small screw driver Connecting lines to the terminal strip Fig 3 1 Terminal strip with the relay and current connections 1 Open the module 1 3 2 2 2 Relay Current output X18 X17 250 VAC 5 A AC R1 X16 X15 250 VAC 5 A AC R2 X14 X13 250 VAC 5 A AC R3 X12 X10 X8 X11 X9 X7 0 ...

Страница 12: ... ring pos 2 into the module housing 3 Loosen the coupling ring pos 3 in Fig 3 1 4 Feed the line through the cable gland in the module housing 5 Connect the wires to the terminal strip While doing so pay attention to the specifications on the label located under the terminal strip 6 Tighten the coupling ring pos 3 in Fig 3 1 7 Close the module 8 Screw the remaining cable glands with the sealing rin...

Страница 13: ...eck the condition of the outputs see section 4 7 Basic information on how to use relay outputs is given in section 4 1 Note The general operating principles are given in the relevant system operating manual or in the component operating manual of the terminal components Functions of current and relay outputs Relay output see section 4 5 System monitoring Sensor monitoring Limit indicator Frequency...

Страница 14: ...ng When using a relay for monitoring a relay action Open Close occurs when certain states occur This function is suitable e g for the monitoring of errors in the system Note For monitoring functions use the relay preferably as an opener see section 4 5 1 In the case of an error the relay opens As a result the monitoring function operates even if e g the supply voltage fails Oxley Creek WWTP Water ...

Страница 15: ...y actions are possible in each case see page 4 4 Monitoring two limiting values using two relays If the upper limiting value is exceeded or undercut a relay switches and if the lower limiting value is exceeded or undercut another relay switches The Open or Close relay actions are possible in each case see page 4 4 Note If the simple monitoring function Open Close with one or two relays is not suff...

Страница 16: ...y 1 exceeded 2 Selected switching delay t1 for relay 1 expired Relay 1 switches 3 Hysteresis for upper limiting value relay 1 undercut 4 Selected switching delay t1 for relay 1 expired Relay 1 switches back 5 Lower limit value relay 2 undercut Selected switching delay t2 for relay 2 expired Relay 2 switches 6 Hysteresis for lower limiting value relay 2 exceeded Selected switching delay t2 for rela...

Страница 17: ...quency output see page 4 8 Proportional outputs can be used in the following way Output with one relay An output range is defined with a Start value and an End value No output takes place above and below the output range see page 4 6 Output with two relays An output range is defined for each relay with a Start value and an End value One relay outputs in the upper output range and a further relay i...

Страница 18: ...f or Pulse v width 1 Start value Measured value with a minimum pulse width or switching frequency 2 End value Measured value with a maximum pulse width or switching frequency Proportional bands Relay 1 and 2 Measured value Relay 1 Relay 2 1 2 2 1 10 100 90 0 Switching frequency f or Pulse v width Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witte...

Страница 19: ...measured value and with it the pulse width v The pulse width can be set from 0 to 100 v ton T 100 v pulse width T cycle duration ton turn on duration If the measured value is at the end of the proportional range End value the turn on duration ton is long the turn off duration is short This means the relay operates for a longer period If the measured value is at the beginning of the proportional ra...

Страница 20: ...s often Fig 4 5 Relay output of frequency output While the selected switching duration ton 0 3 s always remains constant the switching frequency at which the relay switches changes depending on the measured value If the measured value is at the end of the proportional range End value the switching frequency is higher If the measured value is at the beginning of the proportional range Start value t...

Страница 21: ...n the Start value The turn on duration or frequency decreases with an increasing measured value see page 4 11 The maximum values for the pulse width or switching frequency are assigned to the End value and the minimum values for turn on duration or frequency are assigned to the Start value Fig 4 6 Positive characteristic curve Fig 4 7 Negative characteristic curve Measured value Switching frequenc...

Страница 22: ...m pulse width or switching frequency 2 End value Measured value with a maximum pulse width or switching frequency 0 10 50 90 100 Proportional band tOn tOf f 50 50 10 10 90 90 Cycle duration T Time Measured value 2 1 Pulse v width 0 60 120 Proportional band Time Measured value 2 1 50 of maximum switching frequency Maximum switching frequency Switching frequency f 1 min Minimum switching frequency O...

Страница 23: ...um pulse width or switching frequency 2 End value Measured value with a maximum pulse width or switching frequency 0 10 50 90 100 Proportional band tOn tOf f 50 50 10 10 90 90 Cycle duration T Time Measured value 1 2 Pulse v width 0 50 100 Measured value Proportional band 1 50 of maximum switching frequency Maximum switching frequency Time 2 Switching frequency f 1 min Minimum switching frequency ...

Страница 24: ... of outputs 1 Open the Einstellungen Settings menu with s 2 Using d and g select and confirm the menu item System settings Edit list of outputs The Edit list of outputs display opens 3 Highlight a name in the Name column with d and confirm with g 4 Select a letter a numeral or a special character with d and confirm with g 5 Complete the name of the output and confirm with g Oxley Creek WWTP Water ...

Страница 25: ...s and links overview by the specification of the linked sensor 1 Open the Einstellungen Settings menu with s 2 Using d and g select and confirm the menu item System settings Settings of outputs and links The Settings of outputs and links display opens 3 Highlight the column with d and confirm with g 4 Highlight an output with d and confirm with g The Link with display opens The display shows a lis...

Страница 26: ...Fig 4 14 Settings of outputs and links Erase link 1 Open the Einstellungen Settings menu with s 2 Using d and g select and confirm the menu item System settings Settings of outputs and links The Settings of outputs and links display opens 3 Highlight the column with d and confirm with g 4 Highlight a linked output with d and confirm with g 5 Select Erase link with d and confirm with g A security p...

Страница 27: ...ngs menu with s 3 Highlight the Settings of outputs and links menu item with d and confirm with g The Settings of outputs and links display appears 4 Highlight the Feature column with d and confirm with g 5 Highlight a line for a relay output Rx in the Feature column with d and confirm with g The Settings of outputs and links display opens 6 Highlight the Relay function menu item with d and confir...

Страница 28: ...r see section 4 5 4 Frequency output see section 4 5 5 Pulse width output see section 4 5 6 Cleaning see section 4 5 7 Sensor controlled see section 4 5 8 Manual control see section 4 5 9 Alarm contact see section 4 5 10 8 Carry out the settings for the relay outputs with d and g The settings include the relay action see section 4 5 1 and sensor dependent settings 9 Highlight and confirm Save and ...

Страница 29: ...the relay remains open for 10 seconds and only closes when the malfunction is no longer present In the following cases the relay does not open despite an invalid measured value Settings Selection Explanations Power failure On Off The Power failure On function monitors the supply voltage in the IQ SENSOR NET on the combi output module If the voltage falls below the critical value the relay switches...

Страница 30: ...ection 4 5 1 Sensor messages include errors and information that are registered by the sensor Special sensor errors The special sensor errors are sensor dependent Details of this are given in the component operating manual of the respective sensor Setting Selection Explanation Errors Special Special sensor errors are monitored and can prompt a relay action All All sensor errors special ones and ge...

Страница 31: ...or Error Communication with sensor interrupted OFL Measuring range undercut or exceeded overflow Setting Selection Values Explanation Limit values UL main variable LL main variable UL adjoining var LL adjoining var Main variable designates the actual measured parameter of the sensor e g pH oxygen etc Adjoining variable designates an additional measured parameter e g temperature Limit value UL Any ...

Страница 32: ...en Close Relay action see section 4 5 1 Switching delay 0 3600 s The time period for which a limiting value must be exceeded before the relay operates Prevents frequent switching for measured values that are close to the limiting value Setting Selection Values Explanation Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Active Date 15 12 2006 ...

Страница 33: ...e a value must be entered for End value that is smaller than the value for Start value Setting Selection Values Explanation Measured variable Main variable Adjoining variable Main variable designates the actual measured parameter of the sensor e g pH oxygen etc Adjoining variable designates an additional measured parameter e g temperature Start value within the measuring range sensor dependent Min...

Страница 34: ...election Values Explanation Measured variable Main variable Adjoining variable Main variable designates the actual measured parameter of the sensor e g pH oxygen etc Adjoining variable designates an additionalmeasured parameter e g temperature Start value within the measuring range sensor dependent Minimum spacing 5 of the measuring range End value Pulse width v min 0 100 Minimum spacing 10 of the...

Страница 35: ...Clean display flashes The outputs linked with this sensor are frozen The maintenance condition see section 4 9 is active After the Cleaning duration the relay is opened During the following Adjustment time the outputs remain blocked The outputs linked with this sensor are only released when the cleaning cycle is completed The Clean display disappears The maintenance condition is finished Testing t...

Страница 36: ...s will be performed at the times specified by the cleaning interval Reference time min 0 60 min Interval unit 1 7 d 1 24 h 5 60 min Selection of range and unit for the Cleaning interval Cleaning interval 1 2 3 4 5 6 7 d or 1 2 3 4 6 8 12 24 h or 5 10 15 20 30 60 min Repeat interval for the cleaning function Time between the start time of a cleaning cycle and the start time of the next cleaning cyc...

Страница 37: ...t1a 2 End of the specified Cleaning duration t1a Start of the specified Adjustment time t1b 3 End of the specified Adjustment time t1b End of the cleaning cycle t1 4 Reference time Cleaning interval t2 Start of a cleaning cycle t1 Cleaning cycle Cleaning duration t1a Adjustment time t1b Linked outputs are frozen t2 Cleaning interval relay condition open closed 00 00 Time 3 1 2 t1 t1 t1 t1a t1b 4 4...

Страница 38: ...et up Note In case of a power failure all relays open The cleaning cycle is canceled The outputs linked with the sensor change to the non active condition see section 4 8 2 As soon as the power is available the outputs are released again The next cleaning cycle will be performed at the time set up 4 5 8 Sensor controlled With the Sensor controlled function the relay is controlled by a linked senso...

Страница 39: ... a relay action close or open if a specified alarm event occurs The Alarm contact function is only available for relays that are not linked with a sensor If necessary an existing link has to be deleted Note The setting up of alarms is described in the IQ SENSOR NET system operating manual Other possibilities of how to use the alarm function are described there as well Setting Selection Values Expl...

Страница 40: ...tellungen Settings menu with s 3 Highlight the Settings of outputs and links menu item with d and confirm with g The Settings of outputs and links display appears 4 Highlight the Feature column with d and confirm with g 5 Highlight a line for a current output Cx in the Feature column with d and confirm with g The Settings of outputs and links display opens 6 Highlight the Current output menu item ...

Страница 41: ... PID controller see section 4 6 2 Fixed current value see section 4 6 3 8 Carry out the settings for the current output with d and g 9 Highlight and confirm Save and quit with d and g The new settings are stored Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Active Date 15 12 2006 ...

Страница 42: ...ning variable Mainvariabledesignates the actual measured parameter of the sensor e g pH oxygen etc Adjoining variable designates an additional measured parameter e g temperature Attenuation 0 40 mA s Speed of change of the output current mA s in the case of an erratic change of the input signal Behavior at error Fixed current value In case of system errors and sensor errors and in case of measured...

Страница 43: ...nal I0 Xp Imin Imax Ti and Td see setting table on page 4 34 IController Current at the controller output at time t I0 Current at output if xactual xnominal K Gain Xp Proportional band xe Error signal xactual Actual value current measured value xnom Nominal value Ti Integral control part Td Derivative control part t Time Imin Lower current limitation Imax Upper current limitation δτ δξ Τ δτ ξ Τ 1 ...

Страница 44: ...eristic curve The proportional band Xp is limited by the measuring range of the linked sensor If a value is entered for the parameter Xp that is greater than zero the controller has a positive characteristic curve To obtain a negative characteristic curve a negative value must be entered for Xp example Fig 4 18 Controller type Td s Ti s P controller 0 0 PI controller 0 1 to 9999 PD controller 1 to...

Страница 45: ...r application example The controller works with the following gain Control parameters Value Nominal value 4 mg l Xp 10 of the measuring range or 6 mg l Imin 8 mA Imax 14 mA Io 12 mA Ti 0 s no I controller part Td 0 s no D controller part 0 8 14 12 Imax Imin Current I mA Measured value mg l 4 2 8 Io Nominal value Xp µγ λ µΑ 1 µγ λ 6 µΑ 6 Κ Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 V...

Страница 46: ...es Explanation Measured variable Main variable Adjoining variable Main variable designates the actual measured parameter of the sensor e g pH oxygen etc Adjoining variable designates an additional measured parameter e g temperature Nominal value within the measuring range sensor dependent Nominal value the measured value is regulated to Xp 5 100 5 100 of the measuring range Proportional band of th...

Страница 47: ... of the controller 0 not effective Behavior at error Fixed current value In the case of an error the current output supplies the current value defined in the Current with error field any in the range 0 21 mA Unchanged In the case of an error the current on the output remains unchanged Setting Selection Values Explanation Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc I...

Страница 48: ... instrument Note The settings for other functions in the Current output menu as for example PID controller and Recorder are retained while the Fixed current value is carried out Setting Selection Values Explanation Current output Fixed current value Using Save and quit the nominal amperage that was input as Inom is output Inom 0 20 mA The nominal amperage that is output Oxley Creek WWTP Water Recl...

Страница 49: ... in the menu Einstellungen Settings Service List of all components can be accessed as follows Fig 4 20 Status of output channels 1 Call up the measured value display with m 2 Open the Einstellungen Settings menu with s 3 Highlight the Service menu item with d and confirm with g The Service dialog box opens 4 Highlight the List of all components menu item with d and confirm with g The List of all c...

Страница 50: ...al and in the component operating manual of the MIQ T2020 terminal The supply voltage is too low Communication between the combi output module and the controller is disturbed Note If the communication between the combi output module and the controller is disturbed the maintenance condition is switched on and the outputs are frozen If no communication is possible for more than 2 minutes the behavio...

Страница 51: ...he user again Erasing a link to a sensor Changing the Measuring mode sensor setting for a linked sensor Changing the Measuring range sensor setting for a linked sensor Note Before editing sensor settings a note appears on the display to inform you that links will be erased when you change the Measuring mode or Measuring range sensor setting Settings in the non active condition Current output Relay...

Страница 52: ...ation the sensor remains in the maintenance condition until the maintenance condition is switched off manually see section 4 9 2 during the cleaning cycle see section 4 5 7 Switch on the maintenance condition manually when you want to clean service or repair remove and replace a sensor see section 4 9 1 When you have finished cleaning servicing or repairing the sensor switch off the maintenance co...

Страница 53: ...puts are frozen 6 Call up the measured value display with m The measured values of the sensor flash 1 Call up the measured value display with m 2 Select the sensor you want to switch off the maintenance condition for with d The measured values of the sensor flash 3 Open the Display Options menu with g 4 Using d highlight the menu item Switch maintenance condition on off or Maintenance of sensor S0...

Страница 54: ...Settings MIQ CR3 DIQ CR3 4 42 ba64107e08 05 2006 Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Active Date 15 12 2006 ...

Страница 55: ...intenance work The general maintenance of IQ SENSOR NET components is described in the IQ SENSOR NET system operating manual 5 2 Cleaning The cleaning of IQ SENSOR NET components is described in the IQ SENSOR NET system operating manual Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Active Date 15 12 2006 ...

Страница 56: ...Maintenance and cleaning MIQ CR3 DIQ CR3 5 2 ba64107e08 05 2006 Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Active Date 15 12 2006 ...

Страница 57: ...ategory II Applicable norms EN 61010 1 UL 3111 1 CAN CSA C22 2 No 1010 1 IQ SENSOR NET connections 2 Additional connectable SENSORNET terminator terminating resistor Number of relay contacts 3 Number of current outputs 3 Terminal type Screw type terminal strip accessible by opening the lid Terminal ranges Solid wires 0 2 4 0 mm2 AWG 24 12 Flexible wires 0 2 2 5 mm2 Line cross section of cables car...

Страница 58: ...dth contr Cleaning Sensor controlled Manual control Alarm contact MIQ CR3 only Output Physically separated from the IQ SENSOR NET Output current Can be switched between 0 20 mA and 4 20 mA In the case of errors can be set to 0 21 mA Max initial output voltage 15 V in the case of missing or incorrect burden Max load 500 Ω Accuracy 0 3 50 µA Functions Programmable as Analog output PID controller Out...

Страница 59: ...All message codes of the output module MIQ CR3 or DIQ CR3 end with the number 411 7 1 1 Error messages 7 1 2 Info messages The MIQ CR3 or DIQ CR3 output module does not send any info messages Message code Message text EA4411 Current output range undercut Check process Check settings and if necessary change them EA5411 Current output range exceeded Check process Check settings and if necessary chan...

Страница 60: ...Indexes MIQ CR3 DIQ CR3 7 2 ba64107e08 05 2006 Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Active Date 15 12 2006 ...

Страница 61: ...Straße 1 D 82362 Weilheim Germany Tel 49 0 881 183 0 49 0 881 183 100 Fax 49 0 881 183 420 E Mail Info WTW com Internet http www WTW com Oxley Creek WWTP Water Reclamation WTW ba64107e08_xIQ_CR3 Vendor Manual Doc Id VM20 Owner Howard Witten Active Date 15 12 2006 ...

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