Siemens Sinumerik 840D sl Function Manual page 496

Data Description
8.4 Drive parameters that are read from the NCK- -SI
Parameter No.
1), 4),
r0474[0,1,2] Configuration of the
5)
redundant coarse
position value
Bit 0: Count direction,
up/down
Bit 1: CRC 16: LSB/
MSB first
Bit 2: MSB/LSB justi-
fied
1), 4),
r0475[0,1,2] Safety MSB of the
5)
redundant coarse
position value
5)
r9527 Encoder evaluation
type
1)
Which parameter indices are read depends on which encoder was selected using MD
$MA_SAFE_ENC_INPUT_NR.
2)
In which MD the value is saved, depends on the selected encoder type. Setting is made using MD
$MC_SAFE_ENC_IS_LINEAR.
3)
These parameters are not mapped in NCK--MD, but in Alarm 27900 and correspondingly alarm
parameters changed over.
4)
These parameters are only evaluated if the encoder parameterization is valid.
5)
If the drive parameter violates the internal limits of the associated NCK--MDs, then Alarm 27038 "Axis %1
value %2 in drive parameter %3 violates the limits of NCK--MD %4" is output, and the value is not
transferred into the NCK--MD.
8-496
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
Meaning
SAFE_ENC_CONF
SAFE_ENC_NUM_BITS[3]
SAFE_ENC_MOD_TYPE
Stored in the NCK- -MD
© Siemens AG 2015 All Rights Reserved
10/15
Alarm when
changing the
MD value
27035
27036
27035