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1761H

Intelligent

Resolver Interface

Module

Allen-Bradley

1771 I/O

Module

User Manual

Manual: 940-57061

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Содержание 1761H

Страница 1: ...1761H Intelligent Resolver Interface Module Allen Bradley 1771 I O Module User Manual Manual 940 57061 ...

Страница 2: ... and workmanship for a period of 1 year Within this warranty period AMCI shall at its option repair or replace free of charge any equipment covered by this warranty which is returned shipping charges prepaid within one year from date of invoice and which upon examination proves to be defective in material or workmanship and not caused by accident misuse neglect alteration improper installation or ...

Страница 3: ...k of Allen Bradley Company Viton is a registered trademark of E I DuPont This product is licensed under patents and proprietary technology of Allen Bradley Company Inc Allen Bradley Company Inc does not warrant or support this product in any manner Manuals at AMCI are constantly evolving entities Your questions and comments on this manual and the information it contains are both welcomed and neces...

Страница 4: ...About This Manual 4 ADVANCED MICRO CONTROLS INC Notes ...

Страница 5: ... in a vernier arrangement The module decodes the separate resolvers and combines their positions into an absolute multi turn position The 1761H accepts a single dual resolver transducer A 1761H application generally falls into one of two categories hýRotary Application The resolver position directly correlates to an angular position on the machine One example is monitoring a rotary table by attach...

Страница 6: ... shaft position whereas the magnitude of energy coupled through a resolver varies sinusoidally as the shaft rotates A resolver has one primary winding the Reference Winding and two secondary windings the SIN and COS Windings See figure 1 2 Resolver Cut Away View The Reference Winding is located in the rotor of the resolver the SIN and COS Windings in the stator The SIN and COS Windings are mechani...

Страница 7: ...ible AMCI Transducers Each transducer contains two resolvers The first resolver called the fine resolver is attached directly to the input shaft with a flexible coupler The second resolver called the course resolver is geared to the fine This gear ratio either 99 100 or 179 180 determines the total number of turns the transducer can encode At the mechanical zero of the transducer the electrical ze...

Страница 8: ...s of absolute position within the smaller cycle An example of this feature is shown in figure 1 5 It shows how the 180 turn mechanical cycle of an HTT 20 180 can be broken down into three electronic cycles of sixty turns each The 180 turn cycle could also be broken down into sixty cycles of three turns each 180 Turn Cycle Mechanical fixed by internal gearing HTT 20 180 60 Turn Cycle 60 Turn Cycle ...

Страница 9: ... clockwise rotation looking at the shaft If the count direction is set to negative the position count will increase with counter clockwise rotation hýThe Count Direction default value is positive It is also possible to reverse the count direction by reversing four wires in the transducer cable If you are installing this module either as a replacement for an older module or on a machine that is a c...

Страница 10: ...arameter is equal to the value of the Transducer Type Parameter Changing the Transducer Type parameter resets the Number of Turns to its default value Full Scale Count The Full Scale Count parameter specifies the number of counts over the programmed number of turns AMCI Transducers hýDefault value is Number of Turns 4096 if 100 or 180 turn transducer hýRange is 2 to Default Value Autotech Transduc...

Страница 11: ...guration Figure 2 1 shows the location of the configuration jumpers on the 1761H module When shipped from the factory all jumpers are installed In order to access the J3 1 and J3 2 jumpers you must remove the left side panel Jumper J3 3 is not used in this module It is strongly recommended that any modification to the J3 jumpers be made in a ESD safe environment The default configuration is 180 1 ...

Страница 12: ... oz in 25 C Moment of Inertia 20 oz in sec2 Moment of Inertia 4 oz in sec2 Enclosure HTT 20 NEMA 13 HTT400 NEMA 4 HTT425 NEMA 4X Enclosure NEMA 4 When properly installed Environmental All Transducers Operating Temp 20 to 125 C Shock 50G s for 11 mSec Vibration 5 to 2000 Hz 20 G s Table 2 2 Transducer Specifications Transducer Mounting All AMCI resolver based transducers are designed to operate in ...

Страница 13: ...76 20 2 000 50 80 1 000 25 40 1 000 25 40 1 25 31 8 4 00 101 60 1 175 29 85 Dimensions in milimeters 2 000 50 80 4 375 111 13 Painted Body Anodized Flange Figure 2 2 HTT 20 x Outline Drawing HTT 400 180 Anodized Aluminum Body 1070 Carbon Steel Shaft NEMA 4 0 6247 0 6237 15 842 1 250 31 75 4 27 108 5 1 60 Sq 6 41 162 1 NPT Thread 4 00 101 6 Dia 0 01 0 3 10 32 UNF 2B 0 50 12 7 min depth Four places ...

Страница 14: ...elines manual Publication number 1770 4 1 for more information 2 The shields of the transducer cable must be grounded at the module only A grounding clamp will connect the shields to chassis ground When installing the cable treat the shield as a conductor Do not connect the shield to ground at any junction box or the transducer These precautions will minimize the possibility of ground loops that c...

Страница 15: ...p The shield of the transducer cable must be attached to the chassis with a grounding clamp AMCI part number GC 1 This guarantees a low impedance path to ground for any EMI radiation that may be induced into the cable The drain wire from the grounding clamp must be connected to pin 3 of the MS 8 Transducer Input Connector The grounding clamp package includes installation instructions See Figure 2 ...

Страница 16: ...totech transducers are available If you want a cable drawing instead of using the table contact AMCI A drawing will be faxed to you upon request 9731 Wire Color Resolver Designation SAC RL210 Terminals SAC RL210 MS Connector 1761H Connector RED R1 1 A 1 BLK RED 1 R2 2 B 2 BRN R1 1 A 1 BLK BRN 1 R2 2 B 2 WHT CS1 3 C 6 BLK WHT 1 CS3 5 E 4 BLK GRN 1 CS2 4 D 5 GRN CS4 6 F 4 YEL FS1 7 H 4 BLK YEL 1 FS3...

Страница 17: ...ult clears parameters will be set to default values If the fault does not clear then module must be returned to AMCI for repair Note If parameters are reset to their defaults on every power up the battery in the module may be discharged If this is the case the module must be returned to AMCI for repair Off Flashing REFERENCE ERROR The module stores constants in nvRAM to automatically adjust the re...

Страница 18: ...Chapter 2 Installation 18 ADVANCED MICRO CONTROLS INC Notes ...

Страница 19: ... a blinking red LED on the front panel The fault will clear itself when a working transducer is properly attached to the 1761H module Position and tachometer data are set to zero during this fault Therefore the values in words 1 thorough 3 equal 32 768 8000h R Reference Error Bit 03 When this bit is set a fault with the module has occurred and is indicated with a blinking green LED on the front pa...

Страница 20: ...a is divided into two words For example using sample data of a 180 turn transducer and 36 turns for complete travel 36 4096 counts turn 147 456 full scale count The first three digits 147 are in Word 1 the last three digits 456 are in Word 2 All BTW data must be in BCD format In the table below Table 3 1 the modules parameters and data ranges for AMCI and Autotech transducers are shown This data i...

Страница 21: ...ram Bit 1 will also act on the Number of Turns and Full Scale Count parameters D Count Direction Bit 02 This bit is only acted on when the Program Parameter Bit 01 is set This bit programs the state of the Count Direction parameter When this bit is reset the Count Direction is set to its Positive value When this bit is set the parameter is set to its Negative value Y Transducer Type Bit 03 This bi...

Страница 22: ...ill use the same data throughout each scan Rung 3 The BT write is enabled whenever CR1 is latched on A BT file controls the transfer Note that the continuous parameter is set to NO Rung 4 CR1 is latched on when a BTW request is made Rung 5 CR1 is unlatched when the BTW request is removed and the BTW Done bit is set Figure 3 3 PLC 5 Programming Example BLOCK XFER READ RACK 2 GROUP 5 MODULE 0 CONTRO...

Страница 23: ...ffect the position data is always written in binary Table 4 1 shows AMCI and Autotech transducer position data Full Scale Number of Turns fixed Counts per Turn Total Counts AMCI 100 Turn 25 1 000 25 000 AMCI 1 000 Turn 250 100 25 000 AMCI 180 Turn 30 1 000 30 000 AMCI 1 800 Turn 300 100 30 000 Autotech 128 Turn 32 1 000 32 000 Table 4 1 Position Data for AMCI and Autotech Transducers Data Format T...

Страница 24: ...0 When this bit is set the module will zero the position of the transducer P Program Parameters Bit 01 When this bit makes a 0p1 transition the module programs itself with the state of bits 02 and 03 These parameters are the Count Direction and Transducer Type of the transducer D Count Direction Bit 02 This bit is only acted on when the Program Parameter Bit 01 is set This bit programs the state o...

Страница 25: ...Hidden Text ...

Страница 26: ...LEADERS IN ADVANCED CONTROL PRODUCTS ADVANCED MICRO CONTROLS INC 20 GEAR DRIVE TERRYVILLE CT 06786 T 860 585 1254 F 860 584 1973 amcicontrols com ...

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