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Parameter listing and descriptions
ACH550 User's Manual
2607
SWITCH FREQ CTRL 0=OFF,
1=ON
Activates the switching frequency control. When active, the selection of
parameter 2606
SWITCHING
FREQ
is limited when the drive internal
temperature increases. See the figure below. This function allows the
highest possible switching frequency at a specific operating point.
Higher switching frequency results in lower acoustic noise.
0 =
OFF
– The function is disabled.
1 =
ON
– The switching frequency is limited according to the figure.
2608
SLIP COMP RATIO
0…200%
Sets gain for slip compensation (in %).
• A squirrel-cage motor slips under load. Increasing the frequency as
the motor torque increases compensates for the slip.
• Requires parameter 9904
MOTOR
CTRL
MODE
= 3 (
SCALAR
:
FREQ
).
0 = No slip compensation.
1…200 = Increasing slip compensation. 100% means full slip
compensation.
2609
NOISE SMOOTHING
0…1
This parameter introduces a random component to the switching
frequency. Noise smoothing distributes the acoustic motor noise over a
range of frequencies instead of a single tonal frequency resulting in
lower peak noise intensity. The random component has an average of
0 Hz. It is added to the switching frequency set by parameter 2606
(
SWITCHING
FREQ
). This parameter has no effect if parameter 2606 =
12 kHz.
0 =
DISABLE
1 =
ENABLE
.
Code Description
Range
80 °C
100 °C
Drive
4 kHz
12 kHz
temperature
R1…R4 drives
8 kHz
90 °C
R5…R6 drives
f
sw
limit
T
Содержание ACH550-01
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