Table of Contents
Advertisement
Functions, monitoring and protective functions
9.3 Drive functions
Deactivation of the variable pulse frequency
By changing the parameter p0290 to "0" or "1" the variable pulse frequency is deactivated.
Function diagram
FP 8014
Parameters
• r0036
• r0037
• p0115
• p0230
• p0290
• p1082
• r2135.13 Fault thermal overload power unit
• r2135.15 Alarm, thermal overload power unit
9.3.13
Pulse frequency wobbling
Description
Pulse frequency wobbling is when the pulse frequency is varied slightly according to a
statistical process. The average pulse frequency value is still the value set; the statistical
variation of the instantaneous value results in a modified noise spectrum.
This procedure reduces the subjectively noticeable motor noise, especially for the relatively
low pulse frequencies set in the factory.
Pulse frequency wobbling is activated with p1810.2 = 1. The amplitude of the static
wobbulation signal can be set in the range from 0% to 20% using p1811.
548
Signals and monitoring functions - Thermal monitoring power unit
Power unit overload I
t
2
CO: Power unit temperatures
Sampling times for internal control loops
Drive filter type, motor side
Power unit overload response
Maximum speed
Operating Instructions, 12/2018, A5E36652151A
Enclosed Drives
Advertisement
Table of Contents
