Siemens SINUMERIK 840C - Manual (Page 494)

07.97 7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
Multiturn resolution absolute encoder motor
(as from SW 5)
1021
Default value Lower input limit Upper input limit Units
4 096 0 65 535 rev/min
Active on
Power On
Number of revolutions of the motor that can be represented
Measuring increments of the absolute track motor
(as from SW 5)
1022
Default value Lower input limit Upper input limit Units
8 192 512 8 388 607 Incr/rev
Active on
Power On
Number of measuring increments per mechanical revolution for serial transmission of the
absolute position value.
Servo loop motor absolute track (as from SW 5) 1023
Default value Lower input limit Upper input limit Units
0000 0000 FFFF Hex
Active on
Power On
Bit 0 Lighting failed Replace encoder
Bit 1 Signal amplitude to small Replace encoder
Bit 2 Code connection defective Replace encoder
Bit 3 Overvoltage Switch on/off, replace encoder
Bit 4 Undervoltage Switch on/off, replace encoder
Bit 5 Overcurrent Switch on/off, replace encoder
Bit 6 Battery change necessary Change battery
Bit 7 +
Bit 13 = 0
CRC error on ENDAT interface
= 1
Check hardware, cable, encoder; replace, if
necessary
Bit 7 +
Bit 13 = 0
Check error
= 1
Check hardware, cable, encoder; replace, if
necessary
Bit 7 +
Bit 13 = 0 Error on correction of abs. track through
= 1 incremental track
Check hardware, cable, encoder; replace, if
necessary
Bit 8 Reserved -
Bit 9 C/D track in encoder EQN 1325 defective Switch on/off, replace encoder
Bit 10 Protocol cannot be cancelled Switch on/off, replace encoder
Bit 11 SSI level detected on data line hardware Check encoder type, replace
Bit 12 TIMEOUT on reading measured value Repeat, replace hardware
Bit 13 See bit 7
Bit 14 Reserved -
Bit 15 Encoder defective Replace encoder
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 6FC5197- AA50 7–79
SINUMERIK 840C (IA)