Siemens SINUMERIK 840C Installation Instructions Manual page 512

07.97
1145
Default value
100.0
Input of breakdown torque reduction factor as specified on the motor data sheet. The point at
which the breakdown torque limit is applied can be altered in this machine data.
Settings of higher than 100 % increase the point at which the limit is applied and vice versa
with settings of lower than 100 % (see graphic representation MD 1230).
Note:
This data is relevant only for MSD drives.
1146
Default value
1 500.0
Input of motor maximum speed as specified on the motor data sheet (non-Siemens motor) or
automatic parameterization using machine data "Motor code number" (MD 1102).
1147
Default value
7 000.0/8 000.0
Input of the maximum permissible speed of the motor or an automatic parameterization
(initialization) is calculated or taken over and performed for this machine data through the
operator action Calculate controller data on the basis of the machine data Motor rated speed
(MD 1400) x 120% for FDD and Motor maximum speed (MD 1146) for MSD. If the speed
actual value is exceeded by more than 2% of the set limit, the motor torque limit is internally
set to 0, i.e. further acceleration is prevented. If the setting is made accordingly, it is possible
for the "Speed controller at stop" monitoring function to respond (response threshold MD 1606
< MD 1147 and response time MD 1605 short). The default depends on the motor type
(FDD ˆ = 7000, MSD ˆ = 8000) and is configured by the drive configuration by the time of start-
up.
Note:
Only the minimum from the input value and the value specified according to the motor is
effective.
1148
Default value
0.0
Speed display at which torque curve drops after 1/n2 function
©
Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
Breakdown torque reduction factor
Lower input limit Upper input limit
5.0
Motor maximum speed
Lower input limit Upper input limit
0.0
Speed limitation
Lower input limit Upper input limit
0.0
Speed at breakdown (as from SW 6)
Lower input limit Upper input limit
-100 000.0
6FC5197- AA50
7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
1 000.0
50 000.0 rev/min
50 000.0 rev/min
100 000.0 rev/min
Active
at once
Units
%
Active on
Power On
Units
Active
at once
Units
Active
at once
Units
7–97