Siemens SINUMERIK 840C - Manual (Page 496)

09.95 7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
Direct servo loop absolute track (SW 5 and higher) 1033
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 too 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 Reserved -
Bit 8 Reserved -
Bit 9 Reserved -
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 CRC error Replace hardware
Bit 14 Reserved -
Bit 15 Encoder defective Replace encoder
Frequency pulse-width modulation 1100
Default value Lower input limit Upper input limit Units
4 000/3 200 2 000 8 000 Hz
Active on
Power On
The frequency of the sampling triangle in the PWM inverter is defined in this machine data.
The default depends on the motor type (FDD ˆ
= 4000, MSD ˆ = 3200) and is configured by the
drive configuration at the time of start-up. The frequency values are set as an MMC function
(see attached table).
Value table:
Default value f
PBM
in Hz T
PBM
in µ s
– 2000 500.0*
– 2285.7.... 437.5*
– 2666.6.... 375.0*
MSD 3200 312.5*
FDD 4000 250.0*
– 5333.3.... 187.5*
– 8000 125*
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50 7–81
SINUMERIK 840C (IA)