Siemens SINUMERIK 840D Description Of Functions page 218

4 Data Descriptions
4.1 Machine data
36912 $MA_SAFE_ENC_INPUT_NR
MD number Actual value assignment: Input to drive module/measuring circuit board
Default: 1
Change becomes effective after POWER ON:
Data type: BYTE
Meaning Number of the actual value input of a module via which the SI encoder is addressed.
= 1:
= 2:
For standard applications with a 2-encoder system, the encoder for Safety Integrated is
connected to the second encoder connection (lower input) of the same drive module.
Special cases, errors Any actual value input in the 611 digital group can be used for the second encoder as the
measuring system on the NC side.
Corresponds with ... MD 36911: $MA_SAFE_ENC_MODULE_NR
MD 30230: $MA_ENC_INPUT_NR
36915 $MA_SAFE_ENC_TYPE
MD number Encoder type
Default: 0
Change becomes effective after POWER ON:
Data type: BYTE
Meaning The type of SI encoder connected is specified here.
= 0:
= 1:
= 4:
Special cases, errors •
•
•
Corresponds with ... MD 30240: $MA_ENC_TYPE
36916 $MA_SAFE_ENC_IS_LINEAR
MD number Linear scale
Default: 0
Change becomes effective after POWER ON:
Data type: BOOLEAN
Meaning This is used to specify whether the connected encoder is a rotary or a linear encoder.
= 0:
load side
= 1:
MDs: $MA_SAFE_ENC_RESOL, $MA_SAFE_ENC_GEAR_PITCH,
Corresponds with ... For 0:
For 1:
36917 $MA_SAFE_ENC_GRID_POINT_DIST
MD number Linear scale grid spacing
Default: 0.01
Change becomes effective after POWER ON:
Data type: DOUBLE
Meaning The grid spacing of the linear scale used is specified here.
MD irrelevant for .... A rotary encoder
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SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Min. input value: 1
Protection level (R/W) 7/2
Applies from SW 3.4
SI encoder is connected to the upper input (motor encoder)
SI encoder is connected to the lower input (2nd encoder)
Min. input value: 0
Protection level (R/W) 7/2
Applies from SW 3.4
Reserved
Raw signal encoder (1V peak-to-peak)
Absolute encoder with EnDat interface
The value is coded in the same way as in data $MA_ENC_TYPE.
Only the value 1 or 4 is permitted.
An incorrect configuration (e.g. entry of values 0, 2, 3 or 5) is flagged with Alarm
27033.
Min. input value: 0
Protection level (R/W) 7/2
Applies from SW 3.4
Rotary encoder is connected
$MA_SAFE_ENC_RESOL is used to specify its resolution and convert it to the
using $MA_SAFE_ENC_GEAR_PITCH, $MA_SAFE_ENC_GEAR_DENOM[n]
and $MA_SAFE_ENC_GEAR_NUMERA[n].
MD: $MA_SAFE_ENC_GRID_POINT_DIST has not significance.
Linear encoder is connected
Its resolution is defined in $MA_SAFE_ENC_GRID_POINT_DIST.
$MA_SAFE_ENC_GEAR_DENOM[n] and
$MA_SAFE_ENC_GEAR_NUMERA[n] have no significance.
$MA_SAFE_ENC_RESOL
$MA_SAFE_ENC_GEAR_PITCH
$MA_SAFE_ENC_GEAR_DENOM[n]
$MA_SAFE_ENC_GEAR_NUMERA[n]
$MA_SAFE_ENC_GRID_POINT_DIST
Min. input value: 0.000 01
Protection level (R/W) 7/2
Applies from SW 3.4
Max. input value: 2
Unit: -
Max. input value: 4
Unit: -
Max. input value: 1
Unit: -
Max. input value: 8
Unit: mm
© Siemens AG 2003 All Rights Reserved
11.03
840D
840D
840D
The
840D