System Manual V2 – MOVITRAC® B
161
8
Installation notes
Installation
8.1.12 Installing the braking resistor
•
The supply cables to the braking resistors carry a high voltage (approx. DC 900 V)
during rated operation.
•
The surfaces of the braking resistors get very hot when the braking resistors are
loaded with P
rated
. Choose a suitable installation location. Braking resistors are
usually mounted on the control cabinet roof.
8.1.13 Binary outputs
•
The
binary outputs
are
short-circuit proof
and
protected against external
voltage to 30 V
. Higher external voltages can destroy the binary outputs.
8.1.14 Interference emission
•
Use shielded motor cables or HD output chokes for EMC compliant installation.
8.1.15 Switched inductances
•
Use suppressors to suppress interference on
– contactors
– relays
– solenoid valves
Suppressors are, for example, diodes, varistors, or RC elements:
Do not connect any suppressors directly on MOVITRAC
®
B. Connect suppressors as
closely as possible to the inductance.
8.1.16 Line filters
MOVITRAC
®
B frequency inverters have an integrated line filter as standard. They
comply with the following limit value class to EN 55011 on the line side without further
measures:
•
Single-phase connection:
C1
cable conducted
•
Three-phase connection:
C2
No EMC limits are specified for interference emission in voltage suply systems without
an earthed star point (IT system). The efficiency of line filters is severely limited.
NOTE
The minimum distance of switched inductances to the inverter must be at least
150 mm (5.91 in).
Summary of Contents for MOVITRAC MC07B0037-2A3-4-00
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