Siemens 611-D, 840C

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 fPBM in Hz TPBM in µs

– 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*

SINUMERIK 840C (IA)