Supply Unit Data - Siemens SINUMERIK 840D Description Of Functions

02.99
4.6

Supply unit data

5100 FLUID_ELASTIC_MODULUS
Fluid elastic module hydraulic oil
Unit: Default:
bar 11000
5101 WORKING_PRESSURE
System pressure
Unit: Default:
bar 0.0
5102 PILOT_OPERATION_PRESSURE
Pilot pressure
Unit: Default:
bar 0.0
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
The supply unit is defined by
S
the modulus of elasticity of the hydraulic fluid,
S
the system pressure and
S
on pilot-actuated valves by the pilot pressure
S
at the cylinder working temperature.
These data influence the limit data (maximum velocity, maximum force...) as
well as the dynamic response characteristics of the drive system (corner fre-
quencies).
Minimum: Maximum:
1000 21000
Minimum: Maximum:
0.0 350.0
Minimum: Maximum:
0.0 250.0
Note
The variable of the elasticity of oil as a function of temperature can be ignored
with respect to industrial hydraulics.
MD 5100 defines the compressibility of the hydraulic fluid.
MD 5101 defines the pressure supplied by the hydraulic power unit.
MD 5102 defines the pressure for a pilot-actuated valve. Zero must be entered
valves without pilot actuation.
4 Firmware Drive Functions
4.6 Supply unit data
Cross ref.: –
Relevant for: Protection level:
HLA 3/3
Data type: Effective:
FLOAT Immediately
Cross ref.: –
Relevant for: Protection level:
HLA 3/3
Data type: Effective:
FLOAT Power On
Cross ref.: –
Relevant for: Protection level:
HLA 3/3
Data type: Effective:
FLOAT Immediately
4-133