Siemens Sinumerik 840D Series Function Manual

7-219
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
Peripherals/Accessories
7.1 Measuring systems
7.1.1 Encoders, linear scales
Note
For connector assignments, see Subsection 5.1.1.
The HLA module is designed to evaluate
S Incremental measuring systems with sinusoidal signals (A, B) and a
reference signal (R)
Or
S Absolute measuring systems with sinusoidal signals (A, B) and EnDat
interface for absolute position sensing
with the following signal limit data:
Signal
voltages
0
U
M(A)
Track signal A
Mech. angle ϕ
Differential signal (A - *A)
Signal
voltages
0
U
M(B)
Mech. angle ϕ
Differential signal (B - *B)
Signal
voltages
0
U
M(R)
Mech. angle ϕ
Differential signal (R - *R)
Track signal *A
Track signal B
Track signal *B
Track signal R
Track signal *R
Fig. 7-1 Required signal chart of measuring system signals for data definition
Encoder
specification
7

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