Safety Instructions; Overview - ABB ACS 600 User Manual

Overview

Installation and
Maintenance Safety
ACA 635 IGBT Supply Sections
The complete safety instructions for the ACA 6xx in Safety and Product
Information (EN code: 63982229) and for the ACS/ACC 617 in
Hardware Manual (EN code: 61329005) must be followed when
installing, operating and servicing the drives. Study the complete safety
instructions carefully.
These safety instructions are intended for all who work on the ACA 6xx
or the ACS/ACC 617. Ignoring these instructions can cause physical
injury or death.
WARNING! All electrical installation and maintenance work on the
drive should be carried out by qualified electricians.
Any installation work must be done with power off, and power is not to
be reconnected unless the installation work is complete. Dangerous
residual voltages remain in the capacitors when the disconnecting
device is opened. Wait for 5 minutes after switching off the supply
before starting work. Always ensure by measuring that the voltage
between the terminals UDC+ and UDC- and the frame is close to 0 V
and that the supply has been switched off before performing any work
on the equipment or making main circuit connections.
If the main circuit of the inverter unit is live, the motor terminals are also
live even if the motor is not running!
Open switch fuses of all parallel connected inverters before doing
installation or maintenance work on any of them. These switch fuses
are not included in the ACS/ACC 617.
Check the cable connections at the shipping split joints before
switching on the supply voltage.
If the auxiliary voltage circuit of the drive is powered from an external
power supply, opening the disconnecting device does not remove all
voltages. Control voltages of 115/230 VAC may be present in the digital
inputs or outputs even though the inverter unit is not powered. Before
starting work, check which circuits remain live after opening of the
disconnecting device by referring to the circuit diagrams for your
particular delivery. Ensure by measuring that the part of the cabinet
you are working on is not live.

Safety Instructions

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