Offset Adjustment - Siemens Sinumerik 840D Series Function Manual

3 Startup
3.9 Fine adjustment and optimization
Definition of travel
direction in NC
(Step 3)
Cancel
manipulated
voltage
limitation
3.9.2

Offset adjustment

Offset of pressure
sensors
3-64
The positive direction of travel of the machine is defined by the user.
With adjustment of travel direction with setpoint MD 32100: AX_MOTION_DIR.
(define travel direction of machine)
Step 3
Traverse with JOG key
(override approx. 10%)
Does cylinder move
in the set direction?
Yes
End
Fig. 3-19 Start-up flow chart, definition of travel direction in NC
The setpoint limitation must be set to 10 V in the following MDs:
MD 5474: OUTPUT_VOLTAGE_POS_LIMIT
MD 5475: OUTPUT_VOLTAGE_NEG_LIMIT
Note
Only in combination with pressure sensing function.
Condition: Sensors are pressure-free!
Ideal: The pressure indicator should also display 0 bar at zero pressure.
Adjustment:
S
MD 5650: Set DIAGNOSIS_CONTROL_FLAGS bit 12 (canceled automati-
cally after 2 s).
S
Pressure sensor A: MD 5551: PRESSURE_SENS_A_OFFS is automatically
adjusted.
S
Pressure sensor B: MD 5553: PRESSURE_SENS_B_OFFS is automatically
adjusted.
For unpressurized pressure sensors, the display must read approximately 0.0
bar for both pressures (MD 5704, MD 5705).
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
no
MD 32100: Change AX_MOTION_DIR
(travel direction of machine)
 Siemens AG, 2003. All rights reserved
10.03