KEB COMBIVERT F4-F, Instruction Manual

Page: 4 / 66

GB 4
GB
1. Operating Specifications
The frequency inverter KEB COMBIVERT F4-F Lift Version 1.4 is a
drive component, which is specified for lift technology. The frequency
inverter is exclusively for stepless open loop /closed loop speed control
of three-phase asynchronous motors and permanent magnet motors.
The operation of other electrical consumers is not permitted and can
lead to the destruction of the unit. 1.1 Application
1.4 Interference Protection
of the Frequency
Inverter The control and power inputs of the frequency inverter
are protected against interferences.
For more operational reliability and additional
protection against malfunctions take notice of
these measures:
– Use of mains filter, when the mains voltage is affected by the
connection of large consumers (reactive-power compensation
equipment, HF-furnaces etc.)
– Protective wiring of inductive consumers (solenoid valves, relays,
electromagnets) with RC elements or similar devices to absorb
the energy when the unit is switched off.
– Install wires, as described in the connection directions, to avoid
inductive and capacitive coupling of interference pulses.
Paired-twisted cables protect against inductive parasitic voltages,
shielding provides protection against capacitive parasitic voltages.
Optimal protection is achieved with twisted and shielded cables
when signal and power lines are installed separately.
! see also Instruction Manual part 2 !
1.3 Interference Protection
of Electric Systems The frequency inverter KEB COMBIVERT transmits electromagnetic
waves of high frequency. To reduce arising interference pulses, that
may effect electric systems in the vicinity of the frequency inverter,
do the following:
– Install the frequency inverter in metal housing
– Shielded motor cables must be used
The shield must be connected onto the frequency inverter PE and
to the housing of the motor (connect extensive shield). Do not use
the shielding as protective earthing. The shield can only operate
safely when the shield is not interuppted and is as close as
possible to the frequency inverter and motor.
– Good earthing (metal ribbon-cable or 10 mm
2
earth lead)
– Use radio interference suppression filters
1.2 Protective Separation
The connections of the terminal strip and encoder
inputs are safely isolated in accordance with VDE
0100. The person who installs the system/machine
must make sure that the wired circuit, whether new
or old, meets the VDE requirements.