Siemens SINUMERIK 840C - Page 574

04.96 7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
Significance speed representation
1711
Default value Lower output limit Upper output limit Units
0.0 -100000.0 100000.0 rev/min
Active
at once
This machine data is used to display the significance of the speed representation. The user is
informed of the significance of bit 0 (internal speed actual value representation) so that he can
assign the internal speed status representation to the physical rotation values. A speed is
available internally in the units of the encoder system and referred to the currently valid speed
controller cycle.
Note:
This machine data is calculated only once during power-up; it cannot therefore be changed
during operation.
Significance rotor flux represent.
1712
Default value Lower output limit Upper output limit Units
0.0 -100000.0 100000.0 µVs
Active
at once
This machine data is used to display the significance of the rotor flux representation. The user
is informed of the significance of bit 0 so that he can assign the internal rotor flux status
representation to the physical values in Vs. The rotor flux scaling is available as an internal
data.
Note:
This machine data is calculated only once during power-up and from the power ON data after
every motor switchover.
Significance torque representation
1713
Default value Lower output limit Upper output limit Units
0.0 -100000.0 100000.0 µNm
Active
at once
This machine data is used to display the significance of the torque representation. The user is
informed of the percentage significance of bit 0 so that he can assign the internal torque status
representation.
Note:
This machine data is calculated only once during power-up from power ON data.
Significance rotor position representation
1714
Default value Lower output limit Upper output limit Units
- -100000.0 100000.0 Degrees
Active
at once
This machine data is the display data of the significance of the rotor position representation.
The user is given the significance of bit 0 so that he can assign the internal representation of
the rotor position to the physical values in electrical degrees.
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Siemens AG 1992 All Rights Reserved 6FC5197- AA50 7–159
SINUMERIK 840C (IA)