ABB ACS 601, Руководство по оборудованию

Страница: 10 / 88

Safety Instructions
vi ACx=ACS/ACC/ACP ACS/ACC/ACP 601 Drives
Emergency Stop
Devices
The person responsible for the overall design and operation of the
driven process must make sure that the installation includes
emergency stop devices and any other safety equipment that may be
needed. Pressing the STOP key on the Control Panel of ACx 600 does
not generate an emergency stop of the motor or separate the drive
from dangerous potential. A Line Contactor with provisions for a
remote power cut-off switch is available as a factory installed option for
the ACx 607. Cutting off power to the drive allows the motor to coast to
a stop.
Ground Connections The ACS 600 and adjoining equipment must be properly grounded.
The ACS 600 and the motor must be grounded at the installation site to
ensure personnel safety in all circumstances and in addition to reduce
electromagnetic emission and pick-up. Make sure that grounding
conductors are adequately sized as required by safety regulations.
In CE compliant installations and in other installations where EMC
emissions must be minimized, 360
degree high frequency grounding of
cable entries is done in order to suppress electromagnetic
disturbances. In addition, power cable shields must be connected to
the ground (PE) in order to meet safety regulations. Power cable
shields are suitable for use as equipment grounding conductors only
when the shield conductors are adequately sized as required by safety
regulations.
The ACS 600 ground terminals should not be connected in series in
case of a multiple installation. Incorrect grounding can cause physical
injury, death or equipment malfunction and increase electromagnetic
interference.
Motor Connections
WARNING! Operation is not allowed if the motor nominal voltage is
less than one half of (ACP: 0.4 times) the ACx 600 nominal input
voltage, or the motor nominal current is less than 1/6 of the ACx 600
nominal output current.
WARNING! Do not make any voltage tolerance or insulation resistance
test (Hi-Pot or Megger) on any part of the ACx 600. Disconnect motor
wires before making any tests of the motor or the cables between the
drive and motor.
Motor Insulation
Requirements
As with all AC drives employing the most modern IGBT invertor
technology, the output waveform of the ACx 600 consists of a series of
rectangular voltage pulses. Regardless of the output frequency, the