Ground-To-Phase Varistor - ABB ACS880-04XT Hardwarehandbuch

Update notice
The notice concerns the ACS880-04XT hardware manuals listed below.
Contents of the notice: Checking the compatibility of the drive with IT (ungrounded) and corner-
grounded delta systems, identifying different types of electrical power systems, disconnecting
EMC filter and ground-to-phase varistor. Notice code (EN): 3AXD50000205417 Rev A. Valid:
From 2017-11-30 until revision E of the manual.
Manual code
3AXD50000025169
3AXD50000035653
Checking the compatibility with IT (ungrounded) and
corner-grounded delta systems
EMC filter +E200 (690 V drives and drive modules)

Drive internal EMC filter +E200 is not suitable for use on an IT (ungrounded) system. See
section Disconnection table
the supply network.
WARNING! Do not install any drive with EMC filter +E200 on an IT system (an
ungrounded power system or a high-resistance-grounded [over 30 ohms] power
system). The system will be connected to ground potential through the EMC filter
capacitors of the drive. This can cause danger, or damage the drive.
Note: When the internal EMC filter is disconnected, the drive EMC compatibility is
considerably reduced.
EMC filter ARFI-10 (ordering code 68241561) – 400 V and 500 V

drives and drive modules)
EMC filter ARFI-10 is not suitable for use on an IT (ungrounded) system. See section
Disconnection table
supply network.
WARNING! Do not install the drive with EMC filter ARFI-10 on an IT system (an
ungrounded power system or a high-resistance-grounded [over 30 ohms] power
system). The system will be connected to ground potential through the EMC filter
capacitors. This can cause danger, or damage the drive.
Note: When the EMC filter is disconnected, the drive EMC compatibility is considerably
reduced.

Ground-to-phase varistor


The ground-to-phase varistor of the drive is not suitable for use on an IT (ungrounded)
system. Disconnect the ground-to-phase varistor before you connect the drive to the
supply network. Check the table on page 2.
WARNING! Do not install the drive with the ground-to-phase varistor connected to
an IT system (an ungrounded power system or a high-resistance-grounded [over 30
ohms] power system). The varistor circuit can be damaged.
Revision
D
D
(page 2). Disconnect the filter before you connect the drive to
(page 2). Disconnect the filter before you connect the drive to the
Update notice 1
Language
English
Deutsch
EN
DE