Function library
7-187
L
EDSVS9332P-D21 EN 3.0
7.5.46.2 Processing of correction values
Speed trimming
This is used to add correction values, e.g. by a superimposed control loop. This enables the drive to
accelerate or decelerate.
•
Adds an analog value at DFSET-N-TRIM to the setpoint speed.
•
Adds a speed value at DFSET-N-TRIM2 to the setpoint speed.
– The speed trimming via this input is more precise.
Phase trimming
This adds a setpoint at DFSET-A-TRIM to the phase setpoint and changes the rotor position to the
setpoint with the number of increments provided in either direction (drive is leading or lagging). The
phase is trimmed within a range of ±32767 increments (≙ ±1/2 rev.). Every analog signal can be used
as a source.
•
The input is done in increments (one revolution ≙ 65536 increments).
•
When analog values are entered, 100% correspond to 1/4 revolution = 16384 increments.
•
Extension of the setting range with a multiplier under C0529.
Phase offset
Addition of a fixed phase offset under C0252 to the setpoint of the drive.
Speed-proportional phase setting
Leading or lagging of the phase with rising speed.
•
Enter a suitable setting in increments under code C0253.
•
The set phase offset is reached at 15000 rpm of the drive (linear relationship).
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