Siemens SINUMERIK 840C Installation Instructions Manual page 494

07.97
Multiturn resolution absolute encoder motor
1021
Default value
4 096
Number of revolutions of the motor that can be represented
Measuring increments of the absolute track motor
1022
Default value
8 192
Number of measuring increments per mechanical revolution for serial transmission of the
absolute position value.
1023
Servo loop motor absolute track (as from SW 5)
Default value
0000
Bit 0 Lighting failed
Bit 1 Signal amplitude to small
Bit 2 Code connection defective
Bit 3 Overvoltage
Bit 4 Undervoltage
Bit 5 Overcurrent
Bit 6 Battery change necessary
= 0
Bit 7 +
CRC error on ENDAT interface
Bit 13
= 1
= 0
Bit 7 +
Check error
Bit 13
= 1
Bit 7 + = 0 Error on correction of abs. track through
Bit 13 = 1 incremental track
Bit 8 Reserved
Bit 9 C/D track in encoder EQN 1325 defective
Bit 10 Protocol cannot be cancelled
Bit 11 SSI level detected on data line hardware
Bit 12 TIMEOUT on reading measured value
Bit 13 See bit 7
Bit 14 Reserved
Bit 15 Encoder defective
Note:
The system acknowledges an interchange of the encoder systems ERN 1387 (previous
incremental system) and EQN 1325 (absolute encoder system) during parameterization or
connection by aborting the measured value acquisition. The following incorrect combinations
are possible:
ERN 1387 present, EQN 1325 parameterized:
Abortion via recognition of missing EnDat interface on ERN 1387 (MD 1023, bit 11 or bit 12
set)
Only for FDD:
EQN 1325 present, ERN 1387 parameterized:
Abortion via recognition of missing C/D tracks for EQN 1325 (MD 1023, bit 9 set)
©
Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
(as from SW 5)
Lower input limit Upper input limit
0
(as from SW 5)
Lower input limit Upper input limit
512 8 388 607
Lower input limit Upper input limit
0000
Replace encoder
Replace encoder
Replace encoder
Switch on/off, replace encoder
Switch on/off, replace encoder
Switch on/off, replace encoder
Change battery
Check hardware, cable, encoder; replace, if
necessary
Check hardware, cable, encoder; replace, if
necessary
Check hardware, cable, encoder; replace, if
necessary
-
Switch on/off, replace encoder
Switch on/off, replace encoder
Check encoder type, replace
Repeat, replace hardware
-
Replace encoder
6FC5197- AA50
7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
Units
65 535 rev/min
Units
Incr/rev
Units
FFFF Hex
Active on
Power On
Active on
Power On
Active on
Power On
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