Siemens SINUMERIK 840C - Manual (Page 532)

07.97 7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
Monitoring speed motor 1405
Default value Lower input value Upper input value Units
110.0/100.0 100.0 110.0 %
Active
at once
Input as percentage of maximum permissible speed setpoint as limit value for speed setpoint
monitoring. Machine data "Speed for max. motor operational speed" (MD 1401) acts as the
reference value. A message is output when the monitoring speed is exceeded. The default
setting is dependent on the motor type (FDD ˆ
=110, MSD ˆ =100) and is parameterized either by
means of Calculate controller data or by the drive configuration during start-up.
Note:
As from SW 6:
In addition to MD 1405, the speed limit parameterized in MD 1147 is also used for limiting the
speed setpoint value for MSD.
The speed setpoint limit (Nsetmax) can then be defined as follows:
N
max1
=1.02 (minimum of MD 1146, MD 1147)
N
max2
=MD 1401 x MD 1405
N
setmax
=Minimum of N
max1
, N
max2
Speed controller type 1406
Default value Lower input value Upper input value Units
1 1 1 –
Active on
Power On
Input of speed controller type (PI controller) with speed setpoint smoothing (PI) or with
reference model (PIR). Variant 1 can be parameterized by setting the appropriate filter
machine data via a control structure.
Caution:
This machine data is relevant only for Siemens internal procedures.
P-gain speed controller 1407
Default value Lower input value Upper input value Units
0.3 0.0 100 000.0 Nm/s -1
Active
at once
Input of P-gain of the speed control loop in the lower speed range (n < lower speed threshold
in MD 1411) or automatic parameterization (initialization) via operation ”Calculate controller
data” for MSD. The P-gain values in the lower speed range (MD 1407) and the upper speed
range (MD 1408) are not subject to any mutual restrictions. See machine data "Adaptation
lower speed threshold" (MD 1411) for diagram.
Notes:
• Before the P-gain is set to 0, the associated integral-action component (MD 1409) must be
deactivated to maintain controller stability.
• MD 1407 is active over the entire speed range when the "Speed controller adaptation" is
deactivated (MD 1413 = 0).
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50 7–117
SINUMERIK 840C (IA)