Siemens SINUMERIK 840C - Page 454

10.94 7 Drive Machine Data (SIMODRIVE Drive MD)
7.1.2 MSD MD (data description - SW 3)
n
min
for n
act
< n
min
message motor 2
260
Default value Lower input limit Upper input limit Units
12 0 Rated speed rev/min
Active
at once
Input of response value for monitoring of the PLC status message n
act
< n
min
(see also
MD 241).
Creep speed pulse suppression motor 2
261
Default value Lower input limit Upper input limit Units
Rated speed
––––––––––––––
256
0 Rated speed rev/min
Active
at once
Input of response value for the internal n
min
sensor for stopping the drive with no reverse
rotation. When the speed n
min
is reached, the drive torque is cut off and the drive coasts to a
stop with any remaining kinetic energy.
Note:
This n
min
threshold is not the same as the response value of the n
min
monitor, but it may be
set to the same value.
n
x
for n
act.
< n
x
message motor 2
262
Default value Lower input limit Upper input limit Units
6 000 0
Maximum motor
speed
rev/min
Active
at once
Input of response value for monitoring of the PLC status message n
act
< n
x
(see also
MD 241).
Tolerance band for n
set
= n
act
message motor 2
263
Default value Lower input limit Upper input limit Units
20 0
Rated speed
––––––––––––––-1
16
rev/min
Active
at once
Input of response value for the tolerance band of the PLC status message n
set
> n
act
(see
also MD 241). The tolerance band of the n
set
= n
act
response threshold can be defined in
machine data MD 263.
Speed limitation motor 2
264
Default value Lower input limit Upper input limit Units
Maximum motor
speed
0
Maximum motor
speed
rev/min
Active
at once
Input of maximum motor speed (n
max
) = speed safety limit.
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Siemens AG 1992 All Rights Reserved 6FC5197- AA50 7–39
SINUMERIK 840C (IA)