Siemens Sinumerik 840D Series Function Manual

10.03
4.10 Position measuring system
4-142
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
5024 DIVISION_LIN_SCALE Cross reference: -
Linear scale graduations Related to:
HLA
Protection level:
3/3
Unit:
nm
Default:
20000
Minimum:
1000 (0)
Maximum:
5000000
Data type:
UNS.DWORD
Active:
Power On
The standard parameterizing machine data provided support only linear mea-
suring systems. ROD encoders must be converted by the user, i.e. the distance
traversed by the drive between two (coarse) increments must be entered. Value
0 is automatically entered if MD 5011 bit 4 is set to 0 (no linear measuring sys-
tem).
Rotary absolute value encoders cannot be implemented until software version
HLA 01.01.11 and beyond
5021 ENC_ABS_TURNS_MOTOR Cross reference: -
Multi-turn resolution, absolute encoder, motor Related to:
HLA
Protection level:
3/3
Unit:
U
Default:
4096
Minimum:
0000
Maximum:
65535
Data type:
WORD
Active:
Power On
Number of displayable revolutions of absolute value encoder in motor measur-
ing system. The value is read-only.
5022 ENC_ABS_RESOL_MOTOR Cross reference: -
Measuring steps of absolute track in motor Related to:
HLA
Protection level:
3/3
Unit:
-
Default:
8192
Minimum:
0000
Maximum:
65535
Data type:
WORD
Active:
Power On
Resolution of motor absolute value encoder in measuring pulses per revolution.
The value is read-only.
5023 ENC_ABS_DIAGNOSIS_MOTOR Cross reference: -
Diagnostic bits of absolute value encoder, measuring system
Bit 0=1: “Lighting failed”
Bit 1=1: “Signal amplitude too small”
Bit 2=1: “Faulty code connection”
Bit 3=1: “Overvoltage”
Bit 4=1: “Undervoltage”
Bit 5=1: “Overcurrent”
Bit 6=1: “Battery change necessary”
Bit 7=1: “Control check error”
Bit 8=1: “EnDat encoder cannot be used”
Bit 9=1: CDtrack on encoder ERN1387 defective
Bit 10=1: “Protocol cannot be interrupted”
Bit 11=1: “SSI level on data line detected”
Bit 12=1: “TIMEOUT reading measured values”
Bit 13=1: “CRC error”
Bit 14=1: SSI encoder returned alarm
Bit 15=1: “Encoder faulty”
Bit 12 and 15: SSI zero level monitoring
Bit 14 and 15: SSI idle level monitoring
Related to:
HLA
Protection level:
3/3
Unit:
HEX
Default:
0
Minimum:
0
Maximum:
BFFF
Data type:
UNS.WORD
Active:
Immediately
Linear scale
graduations
4 Firmware Drive Functions

Siemens Sinumerik 840D Series Specifications

General

Axes	Up to 31 axes
Power Supply	24 V DC
Control Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
PLC	Integrated PLC (programmable logic controller)
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Max. Number of Channels	Up to 10 channels