Siemens SINUMERIK 840C Installation Instructions Manual page 511

7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
1143
Default value
0.0
Input of upper speed limit for the L
the motor data sheet (non-Siemens motor) or automatic parameterization using machine data
"Motor code number" (MD 1102). In the field-weakening range, the magnetizing reactance X
increases linearly from the saturated value at the speed at which field weakening begins to the
unsaturated value at the upper limit speed of the L
Notes:
• This machine data only applies to main spindle drives.
• As from SW 5, this machine data is no longer used.
1144
Default value
0.0
Input of gain factor (L /L
h2 h1
the motor data sheet (non-Siemens motor) or automatic parameterization using machine data
"Motor code number" (MD 1102). In the field-weakening range, the magnetizing inductivity L
increases linearly from the saturated value at the speed at which field weakening begins to the
unsaturated value at the upper limit speed of the L
Graphic representation:
MD 1142
Notes:
• If the value is unknown, then 100 % should be entered in order to obtain constant
magnetizing reactance over the entire speed range.
• This data is relevant only for MSD drives.
• As from SW 5, this machine data is no longer used.
7–96
Upper speed L characteristic motor 1
h
Lower input limit
0.0
characteristic (magnetizing inductivity L
h
characteristic (see diagram MD 1144).
h
Gain factor L -characteristic
h
Lower input limit
100.0
) of the L characteristic (magnetizing reactance) as specified on
h
characteristic.
h
L
h
L
h2
Rated value L
h1
n
©
Siemens AG 1992 All Rights Reserved
Upper input limit
50 000.0
) as specified on
h
Upper input limit
500.0
MD 1144
100 %
MD 1142 MD 1143
SINUMERIK 840C (IA)
08.96
Active on
Power On
Units
rev/min
n
Active on
Power On
Units
%
h
n
6FC5197- AA50