Operating Manual – Digital Frequency Converter
Page 3 of 14
09/99 R0048GB.doc
Antriebstechnik GmbH
1.2 General information
Check for any transport damage after unpacking the control
unit and before the initial start-up.
Check that all plug-in and screwed connections are secure.
Minimum requirements for installation site:
♦
The room should be as dust-free as possible (fit filters to
control cabinets which have floor fans).
♦
The ambient temperature must be within the range 5-40 °C
(if required provide separate cooling).
♦
The relative air humidity must not exceed 90%.
♦
The ambient air must not contain any corrosive gases.
The control unit causes power loss and heats the environment.
Ensure that there is adequate distance between the control
unit and heat-sensitive units.
The units are designed for installation in card racks.
The unit must be installed vertically.
The air flow of the unit must not be obstructed.
The air inlet and outlet must be kept clear.
Important information regarding protective earthing
As the servo controller (>3.5 mA) leaks current via the
protective conductor (PE), the feeder cross section of the
protective conductor to the control cabinet must be at least 10
mm² Cu pursuant to DIN 57100, or a second protective
conductor must be laid electrically parallel.
If the connected loads are larger, the minimum cross section of
the protective conductor must correspond to the cross section
of the outer conductors.
The converter leakage currents may be up to 100 mA.
Operation with 30 mA residual-current-operated circuit-
breakers is therefore not possible.
Important information regarding cables
Control lines and power cables are always isolated and must
not be laid in close proximity.
Set-point input, analogue control inputs and measuring outputs
must be installed with shielded cables.
