Supply Unit Data - Siemens Sinumerik 840D Series Function Manual

10.03
4.6

Supply unit data

5100 FLUID_ELASTIC_MODULUS
Modulus of elasticity of hydraulic fluid
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, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 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.
are programmed.
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
MD 5102 is used for "Calculate controller data" if MD 5113 bit 0=1.
Note
The elasticity of oil variable as a function of the temperature can be ignored for
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 reference: -
Related to: Protection level:
HLA 3/3
Data type: Active:
FLOAT Immediately
Cross reference: -
Related to:
Protection level:
HLA
3/3
Data type: Active:
FLOAT Power On
Cross reference: -
Related to:
Protection level:
HLA
3/3
Data type: Active:
FLOAT Immediately
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