
5
Electrical installation
Installation instructions (all versions)
Operating Instructions – MOVIFIT
®
FC
54
5.3.8
Plug connectors
All MOVIFIT
®
plug connectors are illustrated in these operating instructions with view
on the contact end.
5.3.9
Operating braking resistors
Braking resistors dissipate the energy generated during braking operations and get
hot in the process.
WARNING
Risk of burns due to hot surfaces of the braking resistors when loaded with P
N
.
Severe burns.
• Choose a suitable installation location for the braking resistors.
• Do not touch the braking resistors until they have cooled down sufficiently.
The supply cables to the braking resistors carry a high pulsed DC voltage during nomi-
nal operation.
5.3.10
Protection devices
MOVIFIT
®
drives have integrated protection devices against overloads. External over-
load devices are not necessary.
5.3.11
Installation altitude higher than 1000 m above sea level
MOVIFIT
®
units with supply voltages of 380 to 500 V can be used at altitudes above
1000 m asl up to 4000 m asl. To do so, you must observe the following basic condi-
tions.
• At heights above 1000 m amsl, the nominal continuous power is reduced due to
reduced cooling: I
N
reduction by 1% per 100 m.
• At altitudes of 2000 – 4000 m amsl you must take limiting measures which reduce
the line side overvoltage from category III to category II for the entire system.
5.3.12
EMC-compliant installation
INFORMATION
This drive system is not designed for operation on a public low voltage supply system
that supplies residential areas.
This is a product with restricted availability (categories C1 to C4 according to
EN 61800
‑
3). This product may cause EMC interference. In this case, it is recom-
mended for the operator to take suitable measures.
With respect to the EMC regulation, frequency inverters cannot be operated as stand-
alone units. Regarding EMC, they can only be evaluated when they are integrated in a
drive system. Conformity is declared for a described, CE-typical drive system. These
operating instructions contain further information.
21316996/EN – 12/2014