System Manual – MOVIDRIVE® compact Drive Inverters
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Output filter type HF...
Project Planning
4.17
Output filter type HF...
Important notes
Observe the following instructions when using output filters:
•
Operate output filters in VFC operating modes only. Output filters may not be used
in CFC and SERVO operating modes.
•
Do not use output filters in hoist applications.
•
During project planning of the drive, take the voltage drop in the output filter into ac-
count and the reduced motor torque that results. This applies particularly to
AC-230 V units with output filters.
•
Flying restart circuit is not possible with an output filter!
Installation, con-
nection and opera-
tion
NOTES
•
Install output filters next to the corresponding inverter. Leave a ventilation space of
at least 100 mm below and above the output filter. No clearance is required on the
sides.
•
Limit the connection cable between the inverter and output filter to the absolute min-
imum length required. Maximum 1 m with an unshielded cable and 10 m for a shield-
ed cable.
•
An unshielded motor cable is sufficient when using an output filter. Note the follow-
ing instructions when you use an output filter together with a shielded motor
cable:
– The maximum permitted length of the motor cable for operation without V
DC link
connection is 20 m.
– Operation with V
DC link
connection is required if the motor cable is longer than
20 m.
– Observe the notes "Operation with V
DC link
connection" on the next page.
•
The rated through current of the output filter must be higher than or equal to the out-
put current of the inverter. Note whether the projected output current of the inverter
is 100 % I
N
(= rated output current) or 125 % I
N
(= continuous output current).
•
Several motors can be connected to one output filter when operating a motor group
from one inverter. The sum of the rated motor currents must not exceed the rated
through current of the output filter.
•
It is possible to connect two output filters of the same type to one inverter output to
increase the rated through current. All like connections must be connected in paral-
lel on the output filters.
•
Considerable noise (magnetostriction) may occur in the output filter especially if op-
erating with f
PWM
= 4 kHz. In environments susceptible to noise, SEW-EURODRIVE
recommends operation with f
PWM
= 12 kHz (or 16 kHz) and V
DC link
connection. Ob-
serve the notes regarding V
DC link
connection.
•
When the inverter is operated with f
PWM
= 4 or 8 kHz, the output filter connection V5
(with HF...-503) or 7 (with HF...-403) must not be connected (no V
DC link
connec-
tion).
Summary of Contents for MOVIDRIVE compact MCH41A
Page 2: ...SEW EURODRIVE Driving the world...
Page 432: ......
