REXROTH IndraDrive Fc FCS01, Руководство по эксплуатации

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Rexroth IndraDrive FCS01.1 Installation
8-7
DOK-INDRV*--FCS01*****-IB01_EN-P
Note: The illustration shows the general scale model without
proportions. Please also take note of the illustration "FLR01 in
'free installation' type.
Type of braking resistor Size A B C D E Diameter of
fastening
[mm] [mm] [mm] [mm] [mm] [mm]
FLR01.1N-0400-N100R-A-007-NNNN
C 100 170 240 90 150 4,3
FLR01.1N-0600-N60R0-A-007-NNNN D 350 92 120 325 78 6,5
Fig. 8-10: Dimensions of FLR01.1N
8.3 Wiring Directives
The frequency converters have been developed for operation in an
industrial environment. In this environment, the frequency converter may
be exposed to high degrees of electromagnetic interferences. Usually,
correct installation guarantees smooth operation free of trouble and risks.
To ensure that the limits of the EMC directives are kept, the following
notes should be observed.
•
Make sure that all devices in the control cabinet or in the field are well
grounded by means of short grounding lines with large cross-section
which are connected to a common grounding point or grounding bar. It
is very important that each control unit (e.g. automation device)
connected to the frequency converters is linked by means of a short
line with a large cross-section to the same grounding point as the
converter. Flat lines (e.g. metal U-clamps) are preferable as their
impedance with high frequencies is lower.
If possible, the PE ground of the motor controlled through the
frequency converter should be connected directly to the earth
connection linked to the heat sink, together with the PE of the power
input line of the respective frequency converter. Usually, smooth
operation is guaranteed if a central grounding bar is provided and all
PEs are connected to this bar. (also see Chapter 13.4,
Electromagnetic Compatibility (EMC))
•
Use shielded lines for control circuits where possible. The shield
should carefully terminated at the end of the line. Make sure that
strands do not run unshielded over long sections.
•
The shield of the control cables should be grounded only on the
frequency converter side.
•
Run the control cables separately from the load lines if possible, for
example by using separate cable ducts etc. Lay cables at crossing
points at 90° angles if possible.
•
Make sure that interference suppression has been provided for the
contactors in the control cabinets, either - for a.c. contactors - by RC
connection or - for d.c. contactors - by "free-wheeling" diodes.
Note
that the interference suppressors must be mounted to the
contactor coils.
Varistors are also effective for overvoltage limiting.
This interference suppression is of special importance if the
contactors are controlled by the relays in the converter.
•
Use shielded or armoured cables for the load connection (motor
cable), und ground the shield/armor at both ends. Grounding should
be effected directly on the well conducting mounting plate of the
control cabinet or the EMC kit shield angle.