IC-MU_13 Datasheet, PDF (3/59 Pages) IC-Haus GmbH – OFF-AXIS NONIUS ENCODER WITH INTEGRATED HALL SENSORS

iC-MU OFF-AXIS NONIUS ENCODER
WITH INTEGRATED HALL SENSORS
preliminary
CONTENTS
Rev B1, Page 3/59
PACKAGING INFORMATION
4
PIN CONFIGURATION . . . . . . . . . . . . 4
PACKAGE DIMENSIONS . . . . . . . . . . . 5
Serial interface
Configuring the data format and data
length . . . . . . . . . . . . . . . . . . . 26
BiSS C interface . . . . . . . . . . . . . . . . 28
ABSOLUTE MAXIMUM RATINGS
6
SSI interface . . . . . . . . . . . . . . . . . . 29
SPI interface: general description . . . . . . . 31
THERMAL DATA
6
SPI interface: Command ACTIVATE . . . . . 31
ELECTRICAL CHARACTERISTICS
SPI interface: Command SDAD transmission 32
7
SPI interface: Command SDAD status . . . . 32
OPERATING CONDITIONS: Multiturn Interface 9
SPI interface: Command Read REGISTER
(single) . . . . . . . . . . . . . . . . . . 33
OPERATING CONDITIONS: I/O Interface
SPI interface: Command Write REGISTER
10
(single) . . . . . . . . . . . . . . . . . . 33
PRINCIPLE OF MEASUREMENT
SPI interface: Command REGISTER
12
status/data . . . . . . . . . . . . . . . . 34
Rotative measuring system . . . . . . . . . . 12
Linear measuring system . . . . . . . . . . . 12 ^{CONVERTER AND NONIUS CALCULATION}
35
Converter principle . . . . . . . . . . . . . . . 35
CONFIGURATION PARAMETERS
14
Synchronization mode . . . . . . . . . . . . . 35
REGISTER ASSIGNMENTS (EEPROM)
16 MT INTERFACE
38
Register assignment (EEPROM) . . . . . . . 16
Configuration of the Multiturn interface . . . . 38
Special BiSS registers . . . . . . . . . . . . . 18
Construction of a Multiturn system with two
iC-MU . . . . . . . . . . . . . . . . . . . 40
SIGNAL CONDITIONING FOR MASTER AND
Direct Communication To Multiturn Sensor . 41
NONIUS CHANNELS: x = M,N
19
Bias current source . . . . . . . . . . . . . . . 19 ^{INCREMENTAL OUTPUT ABZ,}
Gain settings . . . . . . . . . . . . . . . . . . 19
STEP/DIRECTION AND CW/CCW
42
Offset compensation . . . . . . . . . . . . . . 20 _{UVW COMMUTATION SIGNALS}
44
Phase adjustment . . . . . . . . . . . . . . . 20
REGISTER ACCESS THROUGH SERIAL
ANALOG SIGNAL CONDITIONING FLOW: x =
INTERFACE (SPI AND BISS)
45
M,N
21
Address sections/Registerprotectionlevel . . 49
1. Conditioning the BIAS current . . . . . . . 21
2. Positioning of the sensor . . . . . . . . . . 21 ^{STATUS REGISTER AND ERROR MONITORING 50}
3.a Test modes analog master and analog
Status register . . . . . . . . . . . . . . . . . 50
nonius . . . . . . . . . . . . . . . . . . . 21
Error and warning bit configuration . . . . . . 50
3.b Test mode CNV_x . . . . . . . . . . . . . 21
COMMAND REGISTER
52
4. Trackoffset SPON . . . . . . . . . . . . . . 21
Implementing internal commands . . . . . . . 52
I2C INTERFACE AND STARTUP BEHAVIOR 22
Configurable NPRES Pin . . . . . . . . . . . 54
I2C interface / CRC . . . . . . . . . . . . . . 22 _{POSITION OFFSET VALUES AND PRESET}
Startup behavior . . . . . . . . . . . . . . . . 23
FUNCTION
56
CONFIGURABLE I/O INTERFACE
Preset function . . . . . . . . . . . . . . . . . 56
25
Setting the interfaces . . . . . . . . . . . . . . 25 DESIGN REVIEW: Notes On Chip Functions 58