Siemens Sinumerik 840D Series Function Manual

10.03
4.6 Supply unit data
4-133
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
4.6 Supply unit data
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).
5100 FLUID_ELASTIC_MODULUS Cross reference: -
Modulus of elasticity of hydraulic fluid
Related to:
HLA
Protection level:
3/3
Unit:
bar
Default:
11000
Minimum:
1000
Maximum:
21000
Data type:
FLOAT
Active:
Immediately
5101 WORKING_PRESSURE Cross reference: -
System pressure Related to:
HLA
Protection level:
3/3
Unit:
bar
Default:
0.0
Minimum:
0.0
Maximum:
350.0
Data type:
FLOAT
Active:
Power On
5102 PILOT_OPERATION_PRESSURE Cross reference: -
Pilot pressure Related to:
HLA
Protection level:
3/3
Unit:
bar
Default:
0.0
Minimum:
0.0
Maximum:
250.0
Data type:
FLOAT
Active:
Immediately
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

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