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Lika AMM8A User Manual Download Page 71

AMM8A SSI & BiSS C-mode

value; if the

Acceleration peak warning limit

registers are set to any value

greater than “00 00 00h”, the

Acceleration

registers show the acceleration /

deceleration peak reached by the encoder. The acceleration / deceleration peak
can be reset by setting “08” in the

register.

Bits 2-6 of register 60 (2

18

... 2

22

) are not used (they are set to “0”).

Bit 7 of register 60 is meant to show whether the encoder is accelerating (bit 7
= “1”) or decelerating (bit 7 = “0”).
The acceleration / deceleration value is expressed in RPM/sec.
It is sampled every 7.8125 msec.; the system detects acceleration / deceleration
values greater than 500,000 RPM/sec. and records them with increments of 30
RPM/sec.
It is possible to set an acceleration peak warning limit next to the

Acceleration

peak warning limit

registers. As soon as the acceleration value reaches the set

peak limit, the warning bit 1

Acceleration peak limit reached

in the

warnings and errors

register is set to high (=”1”).

Acceleration

registers structure:

Register

60

61

62

Acc. / Dec.

Not used

Acceleration / Deceleration value/peak

MSB

…

…

...

LSB

2

23

2

22

... 2

18

2

17

- 2

16

2

15

... 2

8

2

7

... 2

0

Acceleration peak warning limit

[63 … 65, rw]

These registers allow to set an acceleration / deceleration peak warning limit. As
soon as the registers 60 … 62

Acceleration

reach the limit set in this item, the

warning bit 1

Acceleration peak limit reached

in the

Encoder warnings and

register is set to high (=“1”).

If the registers are set to =”00 00 00h”, then the acceleration / deceleration peak
warning limit function is disabled and the registers 60 … 62

Acceleration

show

the current acceleration / deceleration value. Any value greater than 0 will set
the acceleration / deceleration peak limit at which the warning message will be
invoked to appear; moreover the

Acceleration

registers will show the

acceleration / deceleration peak reached by the encoder instead.
See also

Acceleration

Default = 00 00 00h

Speed

[66–67, ro]

These registers display either the current speed value or the speed peak reached
by the encoder. The value is 16 bit long (2

0

… 2

15

).

If the

Speed peak warning limit

registers are set to “00 00 00h”, the

registers show the current speed value; if the

Speed peak warning limit

registers are set to any value greater than “00 00 00h”, the

registers

MAN AMM8A SSI_BiSS E 1.10.odt

8 - BiSS C-mode interface

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Summary of Contents for AMM8A

Page 1: ...on into robots motors and OEM applications Suitable for the following models AMM8Axx xxxxxBGx AMM8Axx xxxxxGGx AMM8Axx xxxxxSCx Table of Contents 1 Safety summary 11 2 Identification 14 3 Get started 15 4 Mounting instructions 16 5 Electrical connections 31 6 Calibration and synchronization procedure38 7 SSI interface 54 8 BiSS C mode interface 57 9 Default parameters list 77 Lika Electronic Tel 3...

Page 2: ...ion herein is subject to change without notice and should not be construed as a commitment by Lika Electronic s r l Lika Electronic s r l reserves the right to make all modifications at any moments and without forewarning This manual is periodically reviewed and revised As required we suggest checking if a new or updated edition of this document is available at Lika Electronic s r l s website Lika...

Page 3: ... 3 Counting direction input 32 5 4 Zero setting Preset input 33 5 5 5Vdc OUT 34 5 6 Input 1 34 5 7 Sine cosine signals 34 5 7 1 Output signals voltage level 35 5 8 LEDs 35 5 8 1 ERROR LED 36 5 8 2 CALIBRATION LED 37 6 Calibration and synchronization procedure 38 6 1 Brief information on the software tool 38 6 2 IF90 SC interface 38 6 3 Before launching the calibration and synchronization procedure...

Page 4: ...n rates 56 7 4 Recommended SSI input circuit 56 8 BiSS C mode interface 57 8 1 Communication 57 8 2 Single Cycle Data SCD 58 8 2 1 SCD structure 58 Position 58 Speed 58 Acceleration 58 Error 58 Warning 59 CRC 59 8 3 Control Data CD 59 Register address 59 RW 59 DATA 60 CRC 60 8 4 Implemented registers 60 Profile ID 61 Serial number 62 Command 62 Normal operational state 62 Save parameters on EEPROM...

Page 5: ... errors 72 Work cycles limit reached 72 Acceleration peak limit reached 73 Speed peak limit reached 73 Multiturn gear error 73 Work cycles save error 73 Gears offset error 73 Synchronization error 74 EEPROM error 74 Sensor warnings 74 Nonius error 74 Encoder Sensor EEPROM error 74 Excessive temperature warning 75 Sensor errors 75 Excessive temperature error 75 Device ID 75 Manufacturer ID 76 8 5 A...

Page 6: ...ning 75 F Fix the encoder 52 G Gears offset error 73 I IF90 not connected 53 Information per revolution 66 Interface 41 L Load and save default parameters 63 M Manufacturer ID 76 Mechanical alignment 45 Multiturn gear error 73 N N of bits used for multiturn resolution 69 N of bits used for singleturn resolution 69 Nonius error 74 Normal operational state 62 Number of revolutions 67 O Output code 6...

Page 7: ...n OK 53 Synchronization single multi turn 47 T Track offset calibration 46 W Warning 59 Work cycles counter 69 Work cycles limit reached 72 Work cycles save error 73 Work cycles warning limit 70 Z Zero setting OK 53 ...

Page 8: ...nt to highlight the parts of the text where information of great significance for the user can be found user must pay the greatest attention to them Instructions must be followed strictly in order to guarantee the safety of the user and a correct use of the device Failure to heed a warning or comply with instructions could lead to personal injury and or damage to the unit or other equipment This i...

Page 9: ...S_vx x x exe for BiSS interface encoders IF90 SC_AMM8_SSI_vx x x exe for SSI interface encoders The connection between the encoder and the PC is established by using the kit IF90 SC module USB cable AC DC power supply order code IF90 SC expressly supplied by Lika Electronic The EC FCI LK TF12 0 5 and EXC D15M S71 A16 1 0 FCI S71 cables must be ordered separately as well as the PF5013 mechanical sp...

Page 10: ...nnector 14 pin SQW 107 01 F D VS connector to the modular encoder unit B EC FCI LK TF12 0 5 connection cable for operation see on page 32 0 5 m cordset with SQW 107 01 F D VS 14 pin connector C PF5013 mechanical spacer to properly place the disk on the flange at the right distance see on page 18 D PF5015 positioning tool to press the code disk into place on the mechanical spacer see on page 18 ...

Page 11: ... Preset and Counting direction inputs to 0Vdc to set the zero preset connect Zero setting Preset input to Vdc for 100 µs at least then disconnect Vdc normally voltage must be at 0Vdc zero preset must be set after Counting direction we suggest setting the zero preset when the encoder shaft is not running Counting direction CW increasing count viewed from flange side connect to 0Vdc CCW increasing c...

Page 12: ...losure for the specific application 1 4 Specific handling and cleaning instructions and safety information against electrostatic discharges Please be sure to strictly observe the following safety precautions and instructions before handling and installing the modular encoder Open the box and handle the electronic components only within an EPA Electrostatic Protective Area and when you are properly...

Page 13: ...e disk wipe with a soft dry cloth or camera lens tissue wipe the disk using circular motions more stubborn fingerprints or stains can be removed using a soft cloth lightly moistened with a few drops of alcohol do not use gasoline kerosene benzene or other solvents as they damage the disk MAN AMM8A SSI_BiSS E 1 10 odt 1 Safety summary 13 of 80 ...

Page 14: ...der code and the serial number when reaching Lika Electronic For any information on the technical characteristics of the product refer to the technical catalogue Warning encoders having order code ending with Sxxx may have mechanical and electrical characteristics different from standard and be supplied with additional documentation for special connections Technical Info MAN AMM8A SSI_BiSS E 1 10 ...

Page 15: ...on page 18 As an alternative or in case the fast synchronization procedure does not succeed you can follow the instructions in the 4 4 Mounting the encoder and executing the complete synchronization procedure section on page 25 The complete procedure with calibration and synchronization processes see on page 38 will take a little bit more time MAN AMM8A SSI_BiSS E 1 10 odt 3 Get started 15 of 80 ...

Page 16: ...p WARNING Before handling and mounting the device please be sure to read carefully the handling instructions and safety information reported in the 1 4 Specific handling and cleaning instructions and safety information against electrostatic discharges section on page 12 4 1 AMM8A encumbrance sizes values are expressed in mm MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 16 of 80 ...

Page 17: ... the mounting support This encoder module is specifically designed for installation in motors having the mechanical characteristics indicated in the following drawing values are expressed in mm MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 17 of 80 ...

Page 18: ...e it with a soft dry cloth or camera lens tissue wipe the disk using circular motions more stubborn fingerprints or stains can be removed using a soft cloth lightly moistened with a few drops of alcohol do not use gasoline kerosene benzene or other solvents as they damage the disk the code disk must always be handled by grasping its collar protect the disk from scratching avoid flexing the disk al...

Page 19: ...3 by grasping its collar Step 2 Use the PF5015 positioning tool 11 to properly press the code disk 3 into place on the PF5013 spacing tool 1 Tighten the M2 5 x 10 screw 4 to firmly fasten the code disk 3 make sure that the code disk 3 perfectly rests on the spacing tool 1 before fixing it the max tightening torque is 1 3 Nm MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 19 of 80 ...

Page 20: ...ghly then move it back slightly make sure that the metal enclosure of the encoder unit 5 does not hit or touch the code disk 3 always handle the encoder unit 5 by holding the metal enclosure on the sides Step 4 Insert the three M3 x 6 cylinder head bolts 7 in the holes 6 MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 20 of 80 ...

Page 21: ...to 1 3 Nm max Hold the encoder unit 5 down and avoid any movements while tightening Step 6 Connect the EC FCI LK TF12 0 5 cable 8 to the 14 pin male connector 9 of the encoder unit 5 on one side to the subsequent electronics on the other side MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 21 of 80 ...

Page 22: ... it is not installed on the code disk 3 and can read it the error that is generated cannot be reset Step 8 Start the motor running at an ideal speed of 60 10 rpm Check whether the ERROR LED 13 either is off or lights up solidly or blinks at any point while the shaft is rotating The error condition is also signalled through the BiSS Error bit page 58 active low and the Nonius error bit page 74 acti...

Page 23: ... the encoder unit 5 is not installed properly on the code disk 3 loosen the fixing screws 7 and repeat the mechanical operations or the code disk 3 is dirty clean the disk If the ERROR LED 13 does not go off and the BiSS Error bit and the Nonius error bit do not go high and low respectively try the complete synchronization procedure Step 12 Turn off the power supply With power supply disconnected ...

Page 24: ...ng the complete synchronization procedure section on page 25 If an error occurs while performing the synchronization procedure or when uploading the calculated offset at power on the bit 6 Synchronization error in the register 74 Encoder warnings and errors is set to 1 The system cannot operate properly the error message cannot be reset Please contact Lika Electronic After Sales Service MAN AMM8A ...

Page 25: ...ipe it with a soft dry cloth or camera lens tissue wipe the disk using circular motions more stubborn fingerprints or stains can be removed using a soft cloth lightly moistened with a few drops of alcohol do not use gasoline kerosene benzene or other solvents as they damage the disk the code disk must always be handled by grasping its collar protect the disk from scratching avoid flexing the disk ...

Page 26: ...3 by grasping its collar Step 2 Use the PF5015 positioning tool 11 to properly press the code disk 3 into place on the PF5013 spacing tool 1 Tighten the M2 5 x 10 screw 4 to firmly fasten the code disk 3 make sure that the code disk 3 perfectly rests on the spacing tool 1 before fixing it the max tightening torque is 1 3 Nm MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 26 of 80 ...

Page 27: ...code disk 3 always handle the encoder unit 5 by holding the metal enclosure on the sides Step 4 Insert the three M3 x 6 cylinder head bolts 7 in the holes 6 do not tighten them just get a few turns to allow the position of the encoder unit 5 to be slightly adjusted Please ensure that the encoder unit 5 does not move up and down MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 27 of 80 ...

Page 28: ...ocedure and the synchronization operation using the IF90 SC program please refer to the 6 Calibration and synchronization procedure section on page 38 Before starting the calibration and synchronization procedure please make sure that the EXC D15M S71 A16 1 0 FCI S71 cable 10 is properly connected on both sides the USB cable is properly connected to both the IF90 SC interface and the PC the IF90 S...

Page 29: ...alibration interface page see the Figure in the previous Step 6 Step 8 Tighten the three bolts 7 to firmly fix the encoder unit 5 torque to 1 3 Nm max Hold the encoder unit 5 down and avoid any movements while tightening Finally press the DONE button in the calibration and synchronization interface page MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 29 of 80 ...

Page 30: ...ronization procedure After installation calibration and synchronization procedures are carried out replace the EXC D15M S71 A16 1 0 FCI S71 calibration cable with the EC FCI LK TF12 0 5 connection cable MAN AMM8A SSI_BiSS E 1 10 odt 4 Mounting instructions 30 of 80 ...

Page 31: ... TF12 cable Vdc 1 1 Brown_Green 0Vdc 2 White_Green Counting direction 3 Blue Zero setting Preset 4 White CLOCK IN MA 5 Yellow CLOCK IN MA 6 Violet DATA OUT SLO 7 Pink DATA OUT SLO 8 Grey 5Vdc OUT 100 mA max 9 n c Input 1 reserved 10 n c B SIN 11 Red A COS 12 Brown B SIN 13 Black A COS 14 Green n c not connected 1 See the order code for power supply voltage level 1 5Vdc 5 2 8Vdc 32Vdc EXAMPLE AMM8A...

Page 32: ...ure 15 C 80 C 5 F 176 F Conductor resistance 242 02 km Used with EC FCI LK TF12 0 5 cordset 0 5 m with 14 pin connector 5 3 Counting direction input The Counting direction input allows to set whether the position value output by the encoder increases when the encoder disk rotates clockwise CW see Figure on the right or counter clockwise CCW If the Counting direction input is connected to 0Vdc the ...

Page 33: ...ion CCW is set Counting direction 0 CCW if the Counting direction input has LOW logic level 0Vdc the encoder will provide the increasing count when the shaft is turning counter clockwise and the decreasing count when the shaft is turning clockwise on the contrary if the Counting direction input has HIGH logic level Vdc the encoder will provide the increasing count when the shaft is turning clockwi...

Page 34: ...egister For detailed information please refer to the Command register on page 62 the Configuration register on page 63 and the Preset registers on page 67 5 5 5Vdc OUT The encoder provides an auxiliary voltage output to separately supply the circuit or drive further electronics It is over current protected Output voltage 5Vdc 5 Output current max load max 100 mA It is not connected currently 5 6 I...

Page 35: ...EF 2 5V 0 5V VA 1Vpp Av Av R2 R1 5 8 LEDs The encoder is equipped with two LEDs The ERROR LED 13 is used to signal an error condition during the encoder installation and the fast synchronization procedure see on page 36 The CALIBRATION LED 14 is used to indicate the activation of the calibration procedure see on page 37 They are fully described hereafter For further information refer to the 4 3 Mo...

Page 36: ...ncoder unit 5 on the disk The error cannot be reset Please contact Lika Electronic After Sales Service The ERROR LED blinks at any point while the shaft is rotating The ERROR LED 13 blinks at any point while the shaft is rotating and either the BiSS Error bit or the Nonius error bit or both are active low and high respectively the ERROR LED 13 blinks at the point where the encoder unit 5 is not ab...

Page 37: ... turns on the power supply while keeping pressed the button 12 after about 2 sec the green LED 14 lights up solidly the synchronization procedure is active Then he has to turn the shaft until the green LED 14 switches off it signals that the offset has been calculated and the synchronization procedure is carried out MAN AMM8A SSI_BiSS E 1 10 odt 5 Electrical connections 37 of 80 ...

Page 38: ...AC DC power supply A USB cable B IF90 SC interface C order code IF90 SC expressly supplied by Lika Electronic The EXC D15M S71 A16 1 0 FCI S71 cable D must be ordered separately The name of the program executable file is IF90 SC_AMM8_BiSS_vx x x exe for BiSS interface encoders IF90 SC_AMM8_SSI_vx x x exe for SSI interface encoders Vx x x is the release version of the file This is a portable applic...

Page 39: ...0 SC interface D Sub connector 4 14 pin SQW 107 01 F D VS connector to the modular encoder unit Refer also to the 5 Electrical connections section on page 31 WARNING Please note that the IF90 SC interface further provides power conversion to power the encoder When you choose the encoder model to connect to through the software tool see on page 41 you automatically select also the voltage to be sup...

Page 40: ...ers under the Microsoft Windows XP operating system please refer to the following document Installation_Guide_for_WindowsXP pdf If you need to install the drivers under the Microsoft Windows Vista operating system please refer to the following document Installation_Guide_for_VISTA pdf If you need to install the drivers under the Microsoft Windows 7 operating system please refer to the following do...

Page 41: ...F90_diagnostics txt file press the SAVE FILE button or delete them press the CLEAR button 6 5 1 Establishing a connection to the IF90 SC interface After opening the program you must establish the connection between the IF90 SC interface and the encoder You must select the interface unit model through the Interface drop down menu first then the encoder model through the Encoder drop down menu confi...

Page 42: ...e below the serial number SN 171001921 and the version of the firmware FW 2 Furthermore the START PROCEDURE button becomes active If the program is not able to establish a connection to the IF90 SC interface a red appears next to the Interface item and the IF90 not connected error message is invoked to appear see on page 51 Press the CONNECT button to try establishing the connection again If it is...

Page 43: ... of the alignment synchronisation and calibration procedure concerning each encoder which is being tested the Save As dialog box will appear on the screen the operator will be requested to choose the directory where the file has to be saved and to either confirm or change the name of the file which is suggested as default it consists of the device model and its own serial number for instance AMM8A...

Page 44: ...first step the system checks the main parameters of the encoder then if the operation succeeds it enters automatically the second step the encoder mechanical alignment operation If everything is ok a green tick will appear next to the Parameters control item and the program will start the next step automatically On the contrary if an error occurs during the check operation a red will appear next t...

Page 45: ...the encoder unit until it is well aligned over the code disk Step 7 of the mounting instructions the position reference indicator in the vertical bar must be well centred in the middle green section The Fix the encoder message will appear under the encoder picture Tighten the three bolts down to firmly fix the encoder unit torque to 1 3 Nm max Hold the encoder unit down and avoid any movements whi...

Page 46: ...he calibration operation As soon as the calibration procedure is carried out positively a green tick will appear next to the Track offset calibration item and the program will start the next step automatically On the contrary if an error occurs during the calibration procedure after about ten attempts a red will appear next to the Track offset calibration item It may be necessary to clean the disk...

Page 47: ...o the Synchronization single multi turn item As soon as the singleturn multiturn synchronization procedure is carried out positively a green tick will appear next to the Synchronization single multi turn item and the program will start the next step automatically On the contrary if an error occurs during the synchronization procedure a red will appear next to the Synchronization single multi turn ...

Page 48: ...e check operation As soon as the procedure meant to check the calibration operation is carried out positively a green tick will appear next to the Calibration verification item this is the last step in the software control of the correct installation and calibration of the AMM8A encoder Now the operator must stop the motor On the contrary if an error occurs during the verification of calibration p...

Page 49: ...The operator is now required to execute a final manual check he must verify that there is an optimum play in the movement of the gears To check that the gears turn correctly and there is a proper play in their movement the operator must stop the motor and turn the gear 15 manually He must rely on his own sensitivity and experience the movement must be steady and smooth without any irregularities a...

Page 50: ...ration and abort the process It will be necessary to restart it from the first step that is from the mechanical alignment of the encoder WARNING If the movement of the gears is not steady and smooth and you detect irregularities and jams do not press the BACKLASH CHECKED button but execute again the whole operation for the mechanical alignment calibration and synchronisation of the encoder Mechani...

Page 51: ...ce again This further calibration procedure lasts about 5 minutes On the contrary if he presses the NO button the new calibration procedure is aborted and the encoder is not ready for operation Calibration mode is not active The operator has pressed the CONNECT button in order to establish the connection to the encoder but a fault has occurred the encoder is connected yet incorrectly Please check ...

Page 52: ...ncoder the operation has been carried out properly Device not connected The operator has pressed the CONNECT button in order to establish the connection to the encoder but a fault has occurred the program is not able to establish a connection to the encoder Please check that the EXC D15M S71 A16 1 0 FCI S71 cable is connected properly on both sides Make sure that the IF90 SC interface is powered a...

Page 53: ...d synchronization procedure section on page 39 Synchronization OK As soon as the synchronization procedure is carried out positively a green tick appears next to the Synchronization single multi turn item and the Synchronization OK message is displayed At the end of the positive procedure the encoder is ready for operation For further information refer to the 6 5 7 Synchronizing singleturn and mul...

Page 54: ...is required The main advantages in comparison with parallel or asynchronous data transmissions are less conductors are required for transmission less electronic components possibility of insulting the circuits galvanically by means of optocouplers high data transmission frequency hardware interface independent from the resolution of the absolute encoder Furthermore the differential transmission in...

Page 55: ...e with RS 422 standard The output code can be either Binary or Gray see the order code 7 2 MSB left aligned protocol MSB left aligned protocol allows to left align the bits beginning from MSB most significant bit to LSB least significant bit MSB is then sent at the first clock cycle If the number of clock signals is higher than the data bits then unused bits are forced to logic level low 0 and fol...

Page 56: ... RS 422 The SSI clock frequency baud rate depends on the length of the cable and must comply with the technical information reported in the following table Cable length Baud rate 50 m 400 kHz 100 m 300 kHz 200 m 200 kHz 400 m 100 kHz The time interval between two Clock sequence transmissions must be at least 12 µs Tp 12 µs 7 4 Recommended SSI input circuit MAN AMM8A SSI_BiSS E 1 10 odt 7 SSI inter...

Page 57: ...s are according to the EIA standard RS 422 WARNING Never install the encoder in a single Master multi Slave network 8 1 Communication The BiSS C mode protocol uses two types of data transmission protocols Single Cycle Data SCD it is the main data transmission protocol It is used to send process data from the Slave to the Master For any information refer to the 8 2 Single Cycle Data SCD section on ...

Page 58: ...position or the current speed or the current acceleration of the encoder according to the Data type setting bits 0 and 1 in the Configuration register 00 position information default value 10 speed information 01 acceleration information The transmission starts with msb most significant bit and ends with lsb least significant bit Nbitres is the resolution of the encoder expressed in bits bit nbitr...

Page 59: ...g which is the result of a Redundancy Check calculation performed on the message contents This is intended to check whether transmission has been performed properly It is 6 bit long Polynomial X6 X1 1 binary 1000011 Logic circuit 8 3 Control Data CD Main control data is described in this section Please refer to the official BiSS documents for complete CD structure BiSS C Protocol Description in th...

Page 60: ...utput Cyclic Redundancy Check is an error checking which is the result of a Redundancy Check calculation performed on the message contents This is intended to check whether transmission has been performed properly It is 4 bit long Polynomial X4 X1 1 binary 10011 Logic circuit 8 4 Implemented registers Register hex Function Access type 42 43 Profile ID ro 44 47 Serial number ro 48 Command wo 49 Con...

Page 61: ...7 Sensor errors ro 78 7D Device ID ro 7E 7F Manufacturer ID ro All registers described in this section are listed as follows Function name Address Attribute Description of the function and specification of the default value Address the register address is expressed in hexadecimal notation Attribute ro read only rw read and write wo write only Default parameter value is written in bold Profile ID 4...

Page 62: ... Normal operational state It indicates the normal operational state After sending any command the register is set back to 00 Normal operational state automatically Save parameters on EEPROM After having set a new value in the registers use the Save parameters on EEPROM function in this register to store it Set 01 in the Command register Wait min 30 ms EEPROM writing time before using a new functio...

Page 63: ...rror message if the problem that caused the message to be triggered has not been solved the warning or error message will be invoked to appear again For the complete list of the available encoder error and warning messages please refer to the Encoder warnings and errors register on page 72 For the complete list of the available sensor warning messages please refer to the Sensor warnings register o...

Page 64: ...eration deceleration information will be provided to output through SCD The acceleration deceleration value is expressed in RPM per second For complete information on the acceleration deceleration value please refer to the Acceleration registers on page 70 Default 00 encoder current position information Enable preset It enables disables the preset function When you need to enter a new preset value...

Page 65: ...y to what is expected or intended Thus when the counting direction is set to CW Counting direction 1 CW if the Counting direction input has LOW logic level 0Vdc the encoder will provide the increasing count when the shaft is turning clockwise and the decreasing count when the shaft is turning counter clockwise on the contrary if the Counting direction input has HIGH logic level Vdc the encoder wil...

Page 66: ...M function in the Command register set 01 in the Command register Function ADDR DATA Tx Writing in the Configuration register 49 60 Save parameters on EEPROM function in the Command register 48 1 Information per revolution 4B 4D ro These registers are meant to show the number of physical information per revolution singleturn resolution For information see the order code the singleturn resolution c...

Page 67: ... previous and following positions will get a value according to it For instance this can be useful for getting the zero point of the encoder and the zero point of the application to match The preset value will be set for the position of the encoder in the moment when the command is sent through the Save and activate Preset function of the Command register or through the Zero setting Preset input s...

Page 68: ...parameter 3 To save the new Preset value without activating it you must use the Save parameters on EEPROM function in the Command register set 01 in the Command register 4 Otherwise to both save and activate the new Preset value at the same time you must use the Save and activate Preset function in the Command register set 02 in the Command register Function ADDR DATA Tx Setting the Enable preset ...

Page 69: ...ster shows the number of bits used for the number of physical revolutions the number of physical revolutions is available next to the Number of revolutions parameter registers 4E 4F Default see the order code AMM8Axx xxxxx For example 0Ch 12 bits AMM8Axx 4096 Resolution of sine cosine signals 58 ro This register shows the resolution of the sine cosine additional signals 00h no sine cosine signals ...

Page 70: ...he Encoder warnings and errors register is set to high 1 Work cycles counter registers structure Register 59 5A 5B 5C MSB LSB 231 224 223 216 215 28 27 20 Work cycles warning limit 5D 5F rw These registers allow to set a work cycles warning limit As soon as the Work cycles counter registers 59 5C reaches the limit set in this item the warning bit 0 Work cycles limit reached in the Encoder warnings...

Page 71: ... value peak MSB LSB 223 222 218 217 216 215 28 27 20 Acceleration peak warning limit 63 65 rw These registers allow to set an acceleration deceleration peak warning limit As soon as the registers 60 62 Acceleration reach the limit set in this item the warning bit 1 Acceleration peak limit reached in the Encoder warnings and errors register is set to high 1 If the registers are set to 00 00 00h the...

Page 72: ...isters are set to 00 00 00h then the speed peak warning limit function is disabled and the registers 66 67 Speed show the current speed value Any value greater than 0 will set the speed peak limit at which the warning message will be invoked to appear moreover the Speed registers will show the speed peak reached by the encoder instead See also Speed Default 00 00 00h Encoder warnings and errors 74...

Page 73: ...operation If a counting error occurs this bit is set to high 1 To clear the error message set 08 in the Command register Maybe there is a breakdown in the photoelements or in the mechanical gears The system cannot operate properly If the problem lingers please contact Lika Electronic After Sales Service Bit 4 Work cycles save error As soon as the power is turned off the system immediately saves on...

Page 74: ... Error while reading the EEPROM an error occurred while uploading the configuration parameters at power on The system cannot operate properly this error message cannot be reset Please contact Lika Electronic After Sales Service Sensor warnings 75 ro Bits 0 2 Not used Bit 3 Nonius error The BiSS Error bit page 58 and the Nonius error bit page 74 are low and high respectively when the encoder requir...

Page 75: ...p below 85 C 185 F Bits 1 7 Reserved for calibration mode Register 77 Bits 0 7 Reserved for calibration mode Device ID 78 7D ro These registers contain the Device ID 78 7C and the version of the installed software 7D Refer also to the order code Identification name and software version are expressed in hexadecimal ASCII code Register 78 79 7A 7B 7C 7D Hex 41 4D 4D 38 41 xx ASCII A M M 8 A x Regist...

Page 76: ...exadecimal ASCII code Register 7E 7F Hex 4C 69 ASCII L i Li Lika Electronic 8 5 Application notes Data transmission Parameter Value Clock Frequency Min 70 KHz max 10 MHz BiSS time out Self adaptable to the clock 700 ns min 8 µs max 8 6 Recommended BiSS input circuit MAN AMM8A SSI_BiSS E 1 10 odt 8 BiSS C mode interface 76 of 80 ...

Page 77: ...ation per revolution see the order code Number of revolutions see the order code Preset 00 00 00 00 00 Device type 04 N of bits used for singleturn resolution see the order code N of bits used for multiturn resolution see the order code Resolution of sine cosine signals 11 Work cycles warning limit 00 00 00 Acceleration peak warning limit 00 00 00 Speed peak warning limit 00 00 Device ID 41 4D 4D ...

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Page 80: ...SI_v2 4 0 1 9 20 05 2019 Encumbrance size drawings updated tolerances 3 IF90 SC_AMM8_BiSS_v2 4 0 IF90 SC_AMM8_SSI_v2 4 1 1 10 14 12 2020 Information about singleturn resolution 21 bits max and the number of revolutions 12 bits max updated 3 IF90 SC_AMM8_BiSS_v2 4 3 IF90 SC_AMM8_SSI_v2 4 4 Lika Electronic Via S Lorenzo 25 36010 Carrè VI Italy Tel 39 0445 806600 Fax 39 0445 806699 info lika biz www ...

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