Spindle Positioning (From Sw 5.1) - Siemens SIMODRIVE 611 universal Function Manual

01.99 06.04 02.02
! not 611ue !
6.15

Spindle positioning (from SW 5.1)

Description Using the "spindle positioning" function, in the "n–set" mode, the
spindle can be traversed to a specific position and then held there.
Activation The function is activated in the "n–set" mode (P0700 = 1) via the input
signal "spindle positioning on" or via PROFIBUS–DP (STW1.15), if
P0125 = 1 (spindle positioning active).
Note
If the "spindle positioning" function is carried–out using NC functionality
(e.g. SINUMERIK 802D), then P0125 must be set to 0 (spindle
positioning de–activated).
In addition, a traversing block number must be entered
via a terminal or PROFIBUS–DP. If a bit is not selected for the travers-
ing block number, then data in traversing block 0 is used.
The following is mainly defined in the traversing block:
S
S
S
The target position can be approached as follows:
S
S
Position actual
S
value sensing
S
S
Limitations/
S
secondary
S
conditions
S
S
S
E Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
The target position (also via PROFIBUS–DP control word XSP is
possible, being prepared)
The search velocity, and
How the axis approaches the target position:
With the actual direction of rotation
With a defined direction of rotation (clockwise, counter–clockwise)
With a motor encoder (sin/cos 1 Vpp)
With a motor encoder (sin/cos 1 Vpp) and external zero (BERO) at
the spindle when the gearbox stage is being changed–over
with direct measuring system (spindle encoder, sin/cos 1 Vpp) via
encoder connection X412 (drive B)
Spindle positioning only with motor 1.
If spindle positioning has been selected, then the encoder informa-
tion for PROFIBUS–DP (G1_STW, G1_ZSW) is no longer precisely
transferred.
If "spindle positioning on" is selected using a terminal or PROFI-
BUS–DP (for P0125 = 1), then the "relative" positioning mode
(P0087:64) may no longer be programmed in the currently selected
traversing block.
When spindle positioning is selected, it is not possible to change
over the motor via PROFIBUS–DP.
Spindle positioning is not supported in conjunction with the absolute
measuring system.
6 Description of the Functions
6.15 Spindle positioning (from SW 5.1)
6
6-605