Electrical installation
Page 49
Product Manual / Mounting Instructions
„Servo drives ARS 2320 FS, ARS 2340 FS and ARS 2360W FS“
Version 1.0
8.1.3 Proper EMC-compliant and secure cabling
The following must be considered for an EMC-compliant setup of the drive system:
CAUTION!
For safety reasons, all of the PE earth (ground) conductors must be connected prior to
the initial operation of the system.
The EN 61800-5-1 regulations concerning protective earthing (grounding) must be
complied with during the installation!
In order to keep the leakage currents and losses in the motor connecting cable as small as possible,
the ARS 2300 FS servo drive should be located as close to the motor as possible.
Suitable installation and suitable wiring of all connection cables provided, the servo drives
ARS 2300 FS fulfill the requirements of the corresponding product standard, see chapter 4.1. This
standard refers to “classes” and so-called “environments”. The first environment includes mains
supplies serving residential buildings and the second environment includes mains supplies
exclusively serving industrial buildings.
The servo drive ARS 2300 FS must be installed in a steel switch cabinet. In most cases a standard
model will sufficiently attenuate emitted interference. The motor-cable shields must be connected with
the switch cabinet mounting plate.
The control cabinet bed plate must be conducting (zinc-coated design). The imperative central
grounding point should also be located on the control cabinet bed plate.
In order to keep the leakage currents and the losses in the motor connection cable as small as
possible, the servo drive ARS 2300 FS should be located as close to the motor as possible.
Motor cable and angle encoder cable must be shielded.
The shield of the motor cable must be connected to the housing of the servo drive ARS 2300 FS
(shield connection terminal). The cable shield also has to be connected to the associated servo drive
so that the leakage currents can flow back into the servo drive causing the leakage.
The mains-end PE connection must be connected to the PE connection point of the supply
connection [X9].
The inner PE conductor of the motor cable must be connected to the PE connection point of the
motor connection [X6].
The signal lines must be as far away from the power cables as possible. They should not be placed
parallel. If intersections cannot be avoided, they should be perpendicular (that is at a 90° angle), if
possible.
Unshielded signal and control lines should not be used. If their use is inevitable they should at least
be twisted.
Even shielded cables will inevitably have short unshielded ends (unless shielded connector housings
are used). In general, the following applies:
-
Connect the inner shields to the corresponding pins of the connectors
-
Length of the unshielded cores 35 mm maximum
-
Connect the total shield on the servo drive side and the motor side as described in chapter 8.1 .
-
Connect the total shield on the motor side plane to the connector housing or motor housing;
Maximum length 40 mm.
