Function Generator - Siemens SINUMERIK 840D Description Of Functions

3 Start-Up
3.11 Start-up functions
3.11.2

Function generator

3-86
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
The function generator for HLA is based on the existing functionality provided
for other drive types integrated to date. The functionality for HLA, which is not
especially designed for hydraulic drives, is based on the SLM range of func-
tions.
The function generator excites the drive with a periodic signal. The signal type
is a parameterizable quantity. External measuring instruments such as oscillo-
graphs can register the system reactions 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"
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