System Manual – MOVIDRIVE® compact Drive Inverters
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Output filter type HF...
Project Planning
The procedure for selecting the PWM frequency and checking the inverter is summa-
rized in the following figure.
60145AEN
Noise-sensitive
environment in which HF is used
(no motor!)
No
Motor cable type
High EMC requirements
Optimized grounded filter
Shielded
w/o U
z
connection:
(P862) PWM frequency 4 / 8 kHz
W. U
z
connection
(P860) PWM frequency 12/16 kHz
(P862) PWM frequency = FIX
Yes
Unshielded
Length of motor cable
(also total length for
group drive)
> 20 m
< 20 m
No
Yes
Mains voltage?
FI output current is increased by
u =
12 %
(12 kHz)
u =
8 %
(16 kHz)
3 x AC 400 V
HF...-403 not permitted
FI output current is increased by
u =
15 %
(12 kHz)
u =
12 %
(16 kHz)
3 x AC 500 V
Select the HF depending on the
motor current
in the table (Sec. "Technical Data and Dimension Drawings - HF.. Output Filter).
Note:
I
HF_rated
I
rated_motor
I
Motor
Length of motor cable only
limited by voltage drop
Length of motor cable only
limited by voltage drop
Required FI output current
= (1+u) x motor current
Take the minimization of the FI output current into account.
Requirements: power reduction through PWM frequency,
ambient temperature, continuous current consumption.
See Sec. "Project Planning" in the MOVIDRIVE compact system manual
FI output current does not
increase (u = 0)
3 x AC 230 V
FI output current is increased by
u =
4 %
(12 kHz)
u =
3 %
(16 kHz)
Is the FI output current sufficient?
Yes
No
Select larger
FI
Checking the frequency inverter (FI)
and selecting the HF filter
Selecting the PWM frequency
and VDClink connection
Summary of Contents for MOVIDRIVE compact MCH41A
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Page 432: ......
