10.03
4.11 Pressure sensing system
4-145
Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
4.11 Pressure sensing system
5550 PRESSURE_SENS_A_REF Cross reference: -
Reference value of pressure sensor A at 10 V Related to:
HLA
Protection level:
3/3
Unit:
bar
Default:
200.0
Minimum:
50.0
Maximum:
400.0
Data type:
FLOAT
Active:
Immediately
5552 PRESSURE_SENS_B_REF Cross reference: -
Reference value of pressure sensor B at 10 V Related to:
HLA
Protection level:
3/3
Unit:
bar
Default:
200.0
Minimum:
50.0
Maximum:
400.0
Data type:
FLOAT
Active:
Immediately
In MD 5550: PRESSURE_SENS_A_REF and MD 5552:
PRESSURE_SENS_B_REF, the pressure at which the pressure sensor outputs
10 V at the A and B ends of the cylinder is entered in bar.
The pressure sensor should have a range of 0 to 10 V, with 0 bar pressure rep-
resented by 0 V and the reference value (MD 5550 or. MD 5552) by 10 V.
5551 PRESSURE_SENS_A_OFFS Cross reference: -
Offset adjustment for pressure sensor A Related to:
HLA
Protection level:
3/3
Unit:
-
Default:
0
Minimum:
-32760
Maximum:
32760
Data type:
WORD
Active:
Immediately
5553 PRESSURE_SENS_B_OFFS Cross reference: -
Offset adjustment for pressure sensor B Related to:
HLA
Protection level:
3/3
Unit:
-
Default:
0
Minimum:
-32760
Maximum:
32760
Data type:
WORD
Active:
Immediately
Bits set to 1 in MD 5551: PRESSURE_SENS_A_OFFS and MD 5553:
PRESSURE_SENS_B_OFFS, the pressure sensor offset at the A or B end
of the cylinder is adjusted in ADC increments.
The pressure indicator should also display 0 bar at zero pressure. If the
velocity controller cycle is altered, the offset must be adjusted again.
Note
For automatic offset adjustment, see Subsection 3.9.2.
Sensor adjustment
Offset adjustment
4 Firmware Drive Functions
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