Siemens SINUMERIK 840C Installation Instructions

7 Drive Machine Data (SIMODRIVE Drive MD) 12.93
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.
Monitoring speed motor
1405
Default value Lower input limit Upper input limit Units
110 100 110 %
Active
at once
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.
P-gain speed controller
1407
Default value Lower input limit Upper input limit Units
0.3 0 100 000 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). 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).
P-gain upper adaptation speed
1408
Default value Lower input limit Upper input limit Units
0.3 0 100 000 Nm/s
-1
Active
at once
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 ©
Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)

Siemens SINUMERIK 840C Specifications

General

Brand	Siemens
Model	SINUMERIK 840C
Category	Control Unit
Language	English