Siemens SINUMERIK 840C - Manual (Page 533)

7 Drive Machine Data (SIMODRIVE Drive MD) 07.97
7.3.2 Drive MD (data description)
P-gain upper adaptation speed 1408
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 upper speed range (n > upper speed threshold
in MD 1412) 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 1410) must be
deactivated to maintain controller stability.
• MD 1408 is not active when the "Speed controller adaptation" is deactivated
(MD 1413 = 0).
Integral-action time speed controller 1409
Default value Lower input value Upper input value Units
10.0 0.0 500.0 ms
Active
at once
Input of integral-action time of speed control loop in the lower speed range (N < lower speed
threshold MD 1411) or automatic parameterization (initialization) via operation ”Calculate
controller data” for MSD. The integral-action times in the lower speed range (MD 1409) and
the upper speed range (MD 1410) are not subject to any mutual restrictions. See machine
data "Adaptation lower speed threshold" (MD 1411) for diagram.
Notes:
• Setting the integral-action time to zero deactivates the appropriate speed range
(suppression of integral gain and integrator contents torque step changes cannot be
precluded - see also Note in MD 1410).
• MD 1409 is active over the entire speed range when the "Speed controller adaptation" is
deactivated (MD 1413 = 0).
Caution:
When the adaptation function is active, deactivation of the I-action component for only one
speed range (MD 1409 = 0 and MD 1410 0 or vice versa) should be avoided (to prevent
problem of torque step changes through resetting of the integral value on transition from
adaptation to constant range).
Integral-action time upper adaptation speed 1410
Default value Lower input value Upper input value Units
10.0 0.0 500.0 ms
Active
at once
Input of reset time of speed control loop in upper speed range (N > upper speed threshold
MD 1412) or automatic parameterization (initialization) via operation ”Calculate controller
data” for MSD. The reset times in the lower speed range (MD 1409) and the upper speed
range (MD 1410) are not subject to any mutual restrictions. See machine data "Adaptation
lower speed threshold" (MD 1411) for diagram.
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SINUMERIK 840C (IA)