Operating Instructions - KEB COMBIVERT F4-F Instruction Manual

1. Operating Specifications
GB

1.5 Operating Instructions

GB 6
- Only connect control lines to switching elements and setting
devices (relay, switch, potentiometer), that are suitable for extra-
low voltages.
- Use shielded/twisted control lines. Connect the shield only single-
sided to PE of the frequency inverter.
- Use shielded motor cables. Connect shield to the PE and
extensively connect to motor housing.
- Earth frequency inverter very well: star-shaped earthing, avoid
earth loops, shortest connection to main earthing terminal.
The connections on 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 existing or
newly wired circuit meets the VDE requirements.
To avoid damages to the inverter as well as
material damages and injuries to persons,
oberserve the following instructions:
- Install an isolating switch between the voltage supply and inverter,
so that KEB COMBIVERT can shut off independently.
- Frequent switching between mains and inverter is not permitted!
- Switching between motor and inverter during operation is prohibited!
- The KEB COMBIVERT is to be operated under suitable conditions
(see Ambient Conditions in Part 2).
- When changing the programming of a frequency inverter (deviation
from factory setting) check it once more before start up. !Wrong
setting can lead to unintended behaviour of the drive!
- Should a malfunction or a defect occur on the KEB COMBIVERT,
in spite of keeping to the connection and operating instructions, it
can lead to undefined operating conditions. Consequently the
actuation of software-type proctective measures like e.g. limit
switch , the correct performance of a brake or the correct reaction
to setpoint value settings is not guaranteed.
- The protection of a plant only through software protective functions
is not sufficient, it is absolutety necessary to install external
protective measures that are independent from the KEB
COMBIVERT.