Siemens Sinumerik 840D Series Function Manual

10.03
3.11 Start-up functions
3-84
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
3.11.2 Function generator
The function generator for HLA is based on the existing functionality provided
for other drive types integrated to date. The funct. for HLA, which is not espe-
cially designed for hydraulic drives, is based on the SLM range of functions.
The function generator excites the drive with a periodic signal. The signal type
is a modifiable parameter. External measuring instruments such as oscillo-
graphs can record the system responses via DAC output jacks.
The following signals (operating modes) and signal types are available on the
HLA:
S Signals (operating modes)
- valve spool setpoint
- Velocity setpoint
- Position setpoint
S Signal type
- Square-wave
- Noise signal (only for signal output via DAC and external evaluation
equipment for frequency response analyses)
Fig. 3-36 Menu display “Function generator selection signal”
Fig. 3-37 Menu display “Function generator selection signal type”
3 Startup
02.99

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