Siemens SINUMERIK 840C Installation Instructions Manual page 479

7 Drive Machine Data (SIMODRIVE Drive MD)
7.2.2 FDD MD (data description - SW 3)
Note:
Under normal circumstances, shutdown is implemented sequentially on the drive and servo
sides, with variously adjustable timers (NC-MD 156, NC-MD 12240) and, in the event of a
fault, only on the drive side with timer MD 1404.
1405
Default value
110
Input of maximum permissible speed setpoint as a limit value for the speed actual value
monitor. The machine data "Maximum motor speed" (MD 1401) is applied as the reference
value.
1407
Default value
0.3
Input of P-gain of the speed control loop in the lower speed range (n < lower speed threshold
in MD 1411). 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.
Note:
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).
1408
Default value
0.3
Input of P-gain of the speed control loop in the upper speed range (n > upper speed threshold
in MD 1412). 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.
Note:
Before the P-gain is set to 0, the associated integral-action component (MD 1410) must be
deactivated to maintain controller stability.
MD 1408 is not active when the "Speed controller adaptation" is deactivated (MD 1413 = 0).
7–64
Monitoring speed motor
Lower input limit Upper input limit
100
P-gain speed controller
Lower input limit Upper input limit
0 100 000
P-gain upper adaptation speed
Lower input limit Upper input limit
0 100 000
©
Siemens AG 1992 All Rights Reserved
Units
110 %
Units
Nm/s
Units
Nm/s
6FC5197- AA50
SINUMERIK 840C (IA)
12.93
Active
at once
Active
at once
-1
Active
at once
-1