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01.99
04.05
! not 611ue !
Phase 2:
The axis traverses with the reference point shutdown velocity (P0164)
Synchronization
in the opposite direction to that specified in P0166.
using the
After the reference cam has been left (input signal, "reference cam" =
zero pulse
"0" signal), the axis synchronizes with the first zero pulse. The axis bra-
kes down to standstill.
The system continues with "traverse to reference point".
Note
The maximum permissible travel from the reference cams to the zero
pulse can be monitored using P0171 (max. distance between the
reference cam/zero pulse).
The override is not effective.
Phase 3:
The axis traverses with the reference point approach velocity (P0165),
Traversing to the
the reference point offset (P0165) in a positive or negative direction
reference point
referred to the zero pulse.
The following is achieved when the axis reaches the reference point
S
S
S
Note
If the reference point offset is less than the braking travel of the axis
from the reference point shutdown velocity to standstill, then the
reference point is approached from the other direction.
The override is not effective.
Mounting a
The reference cam signal must be connected to an input terminal with
reference cam
function number 78 (reference cam).
Parameter P0167 can be used to adapt the signal characteristics of the
reference cam (NO/NC characteristics).
Table 6-31
NO contact
NC contact
E Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
6.2
Positioning mode (P0700 = 3, from SW 2.1)
The reference point coordinate (P0160 = 0) is transferred as the
new reference position.
The "reference point set" output signal is set to a "1" signal.
From SW 8.3, the reference point approach (homing) can be termi-
nated after the zero mark has been detected, refer to Table 6-33
(P0160 = 1).
Adapting the reference cam signal
If
then, when
approaching/exiting
the reference cam
a 0/1 edge
or 1/0 edge
a 1/0 edge
or 0/1 edge
6 Description of the Functions
P0167
P0167 = 0 (no inversion)
––>
P0167 = 1 (inversion)
––>
(standard)
6-391
6
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