Open Actual Speed Value - Siemens SINAMICS G150 Operating Instructions Manual
Converter cabinet units 75 kw to 1500 kw
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Also See for SINAMICS G150:
- Manual (1843 pages) ,
- Operating instructions manual (680 pages) ,
- Operating manual (240 pages)
Table of Contents
Function diagram
FP 6030
Parameter
• r0079
• r1482
• p1488
• p1489
• r1490
• p1492
• r1508
7.4.3.5
Open actual speed value
Description
Via parameter p1440 (CI: speed controller, speed actual value) is the signal source for the
speed actual value of the speed controller. The unsmoothed actual speed value r0063[0] has
been preset as the signal source in the factory.
Depending on the machine, parameter p1440 can be used, for example, to switch on a filter
in the actual value channel or feed in an external actual speed value.
Parameter r1443 is used to display the actual speed value present at p1440.
Note
When infeeding an external actual speed value, care should be taken that the monitoring
functions continue to be derived from the motor model.
Behavior for speed control with an encoder (p1300 = 21)
A motor encoder must always be available for the speed or position signal of the motor
model (e.g. evaluation via SMC, see p0400). The actual speed of the motor (r0061) and the
position information for synchronous motors still come from this motor encoder and are not
influenced by the setting in p1440.
Interconnection of p1440:
When interconnecting connector input p1440 with an external actual speed value, ensure the
speed scaling is the same (p2000).
The external speed signal should correspond to the average speed of the motor encoder
(r0061).
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
Speed setpoint, droop
Total speed setpoint
Speed controller I torque output
Droop input source
Droop feedback scaling
Droop feedback speed reduction
Droop feedback enable
Torque setpoint before supplementary torque
Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without encoder
403
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