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INSTALLING THE ANR2

ADVANCED MICRO CONTROLS INC.

3

30

 

Extending the Transducer Cable  (continued)

6-Wire Ratiometric

Figure 3.19  Extending a 6-Wire Ratiometric Sensor Cable

It is important to note the sense of the secondary windings and wire them appropriately.  One 
of the secondary windings must be in phase with the primary and one must be in anti-phase.  
The sensor will not work if one of the secondary windings is reversed.  The sensor will count 
in the opposite direction if both of the phases are reversed.

Avoiding Ground Loops When Extending the Sensor Cable

A ground loop occurs when the shields of a cable are attached to earth ground in two places.  It is possible, 
and the likelihood increases as the cable length increases, for these two earth ground points to have a voltage 
potential between them.  The shield acts as a low impedance path between the two points which results in a 
constant current flowing through the shield.  To avoid a ground loop, the cable shields must not be grounded 
in two places.  

If the shield of the sensor cable is isolated from the body of the sensor, connect the shield of the sensor 
cable to the shields of the Belden cable and ground the shield at the ANR2.  Treat the shield of the sen-
sor cable as a signal carrying conductor and do not connect it to earth ground at any other point.

If the shield of the sensor cable is connected to the body of the sensor but the body of the sensor is iso-
lated from chassis ground by its mounting, connect the shield of the sensor cable to the shields of the 
Belden cable and ground the shield at the ANR2.  Treat the shield of the sensor cable as a signal carry-
ing conductor and do not connect it to earth ground at any other point.

If the shield of the sensor cable is connected to the body of the sensor and the body of the sensor is con-
nected to earth ground by its mounting, 

Do Not

 connect the shield of the sensor cable to the shields of 

the Belden cable.  The shield of the sensor cable is grounded by the sensor body.  Connect the shields of 
the Belden cable to earth ground at the ANR2.

B

A

B

+Exc

+Exc

Shields

–Exc

–Exc

GND

A

GND

GND

LVDT/RVDT

Sensor

RED

WHITE

BLACK

BLACK

BLACK

GREEN

Belden 9730 or equ.

NOTE:

 Connection should only be

made if the sensor’s shield is isolated 
from sensor body or sensor body is 
not grounded.  Connection must be 
isolated from Earth Ground at this point.

Содержание ANR2

Страница 1: ...MICRO CONTROLS INC ADVANCED U s e r M anual Manual 940 0A032...

Страница 2: ...ce free of charge any equipment covered by this warranty which is returned shipping charges prepaid within eighteen months from date of invoice and which upon examination proves to be defective in mat...

Страница 3: ...6 Module Status Bits 16 Channel Status Bits 16 Power Up Behavior 17 Switching Modes During Normal Operation 17 Chapter 3 Installing the ANR2 Safe Handling Guidelines 19 Prevent Electrostatic Damage 19...

Страница 4: ...es 49 Notes on Using Two Point Linear Alignment 50 Transmit Bit 50 Entering Alignment Mode 50 ANR2 Response 51 Coarse Gain Adjustment for Two Point Linear Alignment 51 Setting the Null Value 51 Status...

Страница 5: ...This manual 940 0A031 is the second release Released on June 25th 2013 this edition updates parameter ranges adds differential wiring diagrams for 5 and 6 wire sensors and adds screen captures from th...

Страница 6: ...rence text jumps you to referenced section CHP Num Chapter Title Intended Audience 1 Introduction to the ANR2 Anyone new to the ANR2 This chapter gives a basic overview of the features available on th...

Страница 7: ...t accepts 24 Vdc as its power source What makes the ANR2 unique is its advanced digital technology that completely eliminates all potentiometer adjustments and all but one jumper This technology allow...

Страница 8: ...possible over the entire temperature range For these demand ing applications the ANR2 supports the ratiometric measurement method This method requires a five or six wire sensor that is specifically m...

Страница 9: ...e saturated during normal operation The units for this parameter are 0 01mm mil 0 001 or 0 01 and should be the same as the displacement unit used for Sensor Sensitivity Your displacement can exceed t...

Страница 10: ...om minimum to maximum positions If your range of motion is less than this your resolu tion will also be less For example if your range of motion is from the null point to one extreme your resolu tion...

Страница 11: ...r Ethernet networks com municates with the host and must have an address of zero This address is set by having all of the DIP switches in their OFF position If you are using a single module then it mu...

Страница 12: ...imes in 1 5 seconds slow blink fol lowed by one second off The channel is in Alignment Mode and is searching for the null point Movement must occur to increase the voltage on the B channel to reach th...

Страница 13: ...ble as an option with 5 and 6 wire sen sors Excitation Voltage Voltage Output Programmable from 0 800 to 12 000 Vrms with 1 millivolt resolution Frequency Programmable from 400 to 10 000 Hz with 1 Hz...

Страница 14: ...INTRODUCTION TO THE ANR2 ADVANCED MICRO CONTROLS INC 1 14 Notes...

Страница 15: ...ion of the excitation voltage setting is one millivolt Configuration Mode The parameters set in Configuration Mode are shown in table 2 1 The ANR2 has only one excitation volt age so the Excitation Vo...

Страница 16: ...p the ANR2 requires cal ibration If it is set when the Module Initialized bit is reset the unit is in Calibration Mode In Configuration Mode If this bit is set along with the Module Initialized bit on...

Страница 17: ...st command from the host controller before entering one of the available modes While waiting the ANR2 only transmits status information The words used to transmit position data are set to zero For nor...

Страница 18: ...OPERATING MODES ADVANCED MICRO CONTROLS INC 2 18 Notes...

Страница 19: ...fore Servicing in a Hazardous Environment The AnyNET I O InterConnect bus is hot swappable but remove power before remov ing or installing any modules in a hazardous environment Mounting Dimensions Fi...

Страница 20: ...to secure the modules on the DIN Rail These end caps prevent the module from sliding along the DIN rail if it is subjected to shock or vibration during machine operation Addressing Each module needs...

Страница 21: ...ules are electrically isolated from the DIN rail by their mounting but the Chassis GND connection is common to all of the modules in the stack through a pin in the IC 5 connector At least one module i...

Страница 22: ...ield SyncOut ANR2 TOP VIEW J1 J2 B Exc GND GND N C N C B2 GND GND A2 Exc Exc GND SyncIn 11 10 9 8 7 6 5 4 3 2 1 Ch 1 Ch 2 NOTE This is a signal ground not a shield ground All shields must be connected...

Страница 23: ...1 Ch 2 NOTE This is a signal ground not a shield ground All shields must be connected to J1 2 or the earth ground connection of the ANR2 module NOTE Connection between Exc output voltage and A input L...

Страница 24: ...ic Wiring 11 10 9 8 7 6 5 4 3 2 1 GND N C N C B1 GND GND A1 Exc Exc Shield SyncOut ANR2 TOP VIEW J1 J2 B Exc Exc A GND GND N C N C B2 GND GND A2 Exc Exc GND SyncIn 11 10 9 8 7 6 5 4 3 2 1 Ch 1 Ch 2 Th...

Страница 25: ...N C pins of the ANR2 connector Figure 3 11 6 Wire LVDT RVDT Differential Wiring 11 10 9 8 7 6 5 4 3 2 1 GND N C N C B1 GND GND A1 Exc Exc Shield SyncOut ANR2 TOP VIEW J1 J2 B Exc Exc GND N C N C GND...

Страница 26: ...one must be in anti phase The sensor will not work if one of the secondary windings is reversed The sensor will count in the opposite direction if both of the phases are reversed 11 10 9 8 7 6 5 4 3...

Страница 27: ...d to extend the transducer cable more than one hundred feet Half Bridge Sensor Figure 3 13 Extending a Half Bridge Sensor Cable 3 Wire Sensor Figure 3 14 Extending a 3 Wire Sensor Cable Belden 9729 or...

Страница 28: ...OTE Connection should only be made if the sensor s shield is isolated from sensor body or sensor body is not grounded Connection must be isolated from Earth Ground at this point NOTE A jumper from Exc...

Страница 29: ...ected in series opposition at the sensor and this connec tion must be electrically isolated The sensor will not work if the secondary windings are not in series opposition B A B Exc Exc Shields Exc Ex...

Страница 30: ...sor connect the shield of the sensor cable to the shields of the Belden cable and ground the shield at the ANR2 Treat the shield of the sen sor cable as a signal carrying conductor and do not connect...

Страница 31: ...ANR2 You access the jumpers by opening the front cover of the module All ANR2 modules ship with a jumper across the Master pins To set the module to slave mode move the jumper from the Master pins to...

Страница 32: ...INSTALLING THE ANR2 ADVANCED MICRO CONTROLS INC 3 32 Notes...

Страница 33: ...NET Configurator software for setting up an ANR2 module Information on installing the software and using it to configure your network interface is available in the network interface manual that is app...

Страница 34: ...settings on the Alignment tab This tab is used to set the position values at the Null posi tion of the sensor as well as the values at the two extremes of travel Depending on the alignment method you...

Страница 35: ...rement Screen Figure 4 3 shows the settings and data available on the Measurement tab The check boxes in the Measure ment Mode section of the screen allow you to issue measurement commands to the ANR2...

Страница 36: ...AMCI NET CONFIGURATOR SOFTWARE ADVANCED MICRO CONTROLS INC 4 36 Notes...

Страница 37: ...rams available on the AMCI website http www amci com sampleprograms asp This chapter covers the format of the Network Input Data read from the ANR2 by your network host ANR2 Word Power Up or Configura...

Страница 38: ...iences a power on reset Bit 11 In Calibration Mode Set to 1 when the ANR2 is in its Calibration Mode Reset to 0 at all other times If this bit equals 1 when the Module Initialized bit is set the ANR2...

Страница 39: ...nter a mode without setting the correct password in word 1 4 You attempted to align both channels without exiting Alignment Mode and saving the first in flash Each channel must be aligned separately 5...

Страница 40: ...lue when the A D Converter value was greater than 255 counts away from the sensor s null position 8 Min Max Align Error 1 You attempted to set the Min or Max Position to a value greater than 65 535 co...

Страница 41: ...when the first command is accepted This bit is set whenever the module experiences a power on reset Bits 11 10 Reserved Always reset to 0 Bits 9 8 Null Point Position Only active while setting the nu...

Страница 42: ...ns continued Bits 1 0 Sensor Type Bit pattern shows what type of sensor the ANR2 channel is programmed for Figure 5 3 Wire Mode Bits Description Bit Number Channel 1 Word 1 1 0 Channel 2 Word 5 1 0 De...

Страница 43: ...ory set calibration data has been corrupted If this has occurred contact AMCI for assistance See Module Status Word Format starting on page 38 for a full description of the In Calibration Mode and Mod...

Страница 44: ...eset this bit to 0 if the ANR2 is to generate its own excitation voltage Set this bit to 1 if this ANR2 is slaved to another ANR2 that acts as the master module for the group If the ANR2 is a slave mo...

Страница 45: ...control when these bits are acted upon If the channel is disabled its Status LED is also turned off See Wire Mode Bits below for a full description Wire Mode Bits These bits disable the channel or de...

Страница 46: ...ormat starting on page 38 for a full description of the response bits At this point you must reset the Transmit Bit Output Word 0 bit 15 before the ANR2 will accept another command The easiest way to...

Страница 47: ...ces a hardware reset or power loss the parameters are also lost If you want to save the parameters to flash and use them then you must exit Configuration Mode with the Save to Flash and Exit Command a...

Страница 48: ...CONFIGURATION MODE DATA FORMAT ADVANCED MICRO CONTROLS INC 6 48 Notes...

Страница 49: ...ifiers to read the sen sor correctly Two Point Linear Alignment must be used if you have chosen to program only the Excitation Voltage and Frequency while in Configuration Mode 32 Bit Data Values Whil...

Страница 50: ...e Transmit Bit The ANR2 only accepts commands when the Transmit bit makes a 0 1 transition Therefore this bit must be reset between commands The easiest way to do this is to write a value of zero into...

Страница 51: ...ng from the sensor and you can proceed to set your Minimum Value and Maximum Value points If the channel LED is only flashing one color you have to drive the sensor until a proper reading can be taken...

Страница 52: ...ed on page 37 Set Null Value Command Once you are at the null point of the sensor write the following command to the ANR2 to set the position value at this point Figure 7 2 Command Format Set Null Val...

Страница 53: ...wo Point Linear Alignment method you must know the value of the A D converter readings before issuing the Set Minimum Value or Set Maximum Value com mands Issue the Set Minimum Value command first onl...

Страница 54: ...error the four error bits will equal zero See Module Status Word Format starting on page 38 for a full description of the response bits At this point you must reset the Transmit Bit Output Word 0 bit...

Страница 55: ...e magnitude of your high reading is greater than the magnitude of your low reading This occurs when your positive reading has a greater magnitude than your negative reading 4 When not using the Two Po...

Страница 56: ...our error bits will equal zero See Module Status Word Format starting on page 38 for a full description of the response bits At this point you must reset the Transmit Bit Output Word 0 bit 15 before t...

Страница 57: ...t Exit Mode Command Changes to alignment parameters are lost if you do not store the parameters in flash memory when you exit Alignment Mode If you are in Alignment Mode and the ANR2 experiences a har...

Страница 58: ...ALIGNMENT MODE DATA FORMAT ADVANCED MICRO CONTROLS INC 7 58 Notes...

Страница 59: ...is aligned This even occurs if there is an error in aligning the channel you are programming if the other channel is correctly aligned For example assume you are attempting to align channel 2 and you...

Страница 60: ...secondary coils When the core is centered in the LVDT an equal amount of energy is coupled into the secondary coils and their voltage outputs are equal This is the Null position As the core moves tow...

Страница 61: ...coils located in the body of the RVDT and the permeable core is mounted on the shaft of the sensor As the shaft rotates and the difference in induced voltages remains linear over a fixed range of mot...

Страница 62: ...NC 20 GEAR DRIVE TERRYVILLE CT 06786 T 860 585 1254 F 860 584 1973 www amci com Waste Electrical and Electronic Equipment WEEE At the end of life this equipment should be collected separately from any...

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