Output Contactors; Emc; Mechanical Installation - ABB ACS 600 Hardware Manual

Safety Instructions

Output Contactors

EMC

Mechanical Installation

x
Power factor correction capacitors in parallel with the ACx 600 three
phase input can be problematic. Contact factory if questions arise.
If a contactor is used between the output of the ACx 600 and the motor
with DTC control mode selected, the output voltage of the ACx 600
must be controlled to zero before the contactor is opened: ACx 600
units via parameter 21.3, choose COAST. If RAMP is selected, the
output of the ACx 600 must be reduced to zero using Parameter 16.1
by giving zero V DC to the selected digital input. Otherwise the
contactor will be damaged. In scalar control the contactor can be
opened with ACx/ACC 600 running.
Varistors or RC networks (AC) or diodes (DC) should be used to
protect against voltage transients generated by contactor coils. The
protective components should be mounted as close as possible to the
contactor coils. Protective components should not be installed at the
NIOC board terminal block.
When used with inductive loads (relays, contactors, motors), the relay
contacts of ACx 600 must be protected with varistors or RC networks
(AC) or diodes (DC) against voltage transients. The protective
components should not be installed at the NIOC board terminal block.
Installing control devices (contactors or relays) or control cables other
than those of the ACx 600 inside the drive enclosure is not acceptable.
Note: If safety switches, contactors, connection boxes or similar
equipment are installed between the drive and the motor, they should
be installed in a metal enclosure in a way that the conduit or motor
cable shielding runs consistently without breaks from the drive to the
motor, so the emission level will be minimized.
CAUTION! The ACx 601 weighs a considerable amount, and should
not be handled by the front cover. The unit should only be placed on its
back. Exercise appropriate care when maneuvering the unit to avoid
damage and injury. Lifting the ACx 601 is much easier and safer with
two people working together.
CAUTION! The ACx 6x7 should only be transported on the original
pallet, or with a proper lifting device using the lifting lugs on top of the
cabinet. The drive is not intended to be lifted by running lines under
the unit. The ACx 607 center of gravity is quite high, and there is a risk
of over turning the unit. The ACx 607 can be laid on it's back to fit
though confined spaces. Exercise appropriate care when
maneuvering the unit to avoid damage or injury.
CAUTION! Make sure that dust from drilling does not enter the
ACx 600 when installing. Electrically conductive dust inside the unit
may cause damage or lead to malfunction.
601/604/607 US Supplement