Siemens SINUMERIK 802D sl Function Manual page 146

Manual and Handwheel Travel (H1)
8.4 Handwheel traversal in JOG
● MD value = 0 (default):
● MD value = 1:
Evaluation
The traversing path/velocity produced by rotation of the handwheel is dependent on the
following factors:
● Number of handwheel pulses received at the interface
● Active increment (machine function INC1, INC10, INC100, ... )
● Pulse weighting of the handwheel using general MD11320 HANDWH_IMP_PER_LATCH
Motion command +/-
While the axis is moving, the "Travel command+" or "Travel command-" interface signal is
transmitted to the PLC depending on the direction of motion.
● For geometry axes: V3300 1000.7/.6, V3300 1004.7/.6, V3300 1008.7/.6
● For machine axes / spindle: V390x 004.7/.6.
If the axis is already being moved using the traversing keys, the handwheel cannot be used.
Alarm 20051 "Jogging with the handwheel not possible" is output.
Velocity
The velocity results from the pulses generated by the handwheel and the pulse evaluation:
Traverse path per time unit. This velocity is limited by the value in the axis-specific MD32000
MAX_AX_VELO.
Abortion/interruption of traversing movement
The traversing movement is aborted as the result of a RESET or the axis-specific IS
"Deletion of distance-to-go" (V380x 0002.2). The setpoint/actual-value difference is deleted.
NC STOP only interrupts the traversing movement. NC START releases the handwheel
motion again.
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The settings from the handwheel are velocity specifications. When the handwheel is
stationary, braking is realized along the shortest path.
The settings from the handwheel are path specifications. No pulses are lost. Limiting the
velocity to the maximum permissible value can cause the axes to overtravel. Particular
care should be taken in the case of a high weighting of the handwheel pulses. Further
variants of the path or speed setting are possible with the value = 2 or 3.
An increment is evaluated with 0.001 mm if the basic system setting is metric.
(handwheel pulses per locking position)
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0