ABB ACS850-04 series, Руководство по оборудованию

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Planning the electrical installation
66
Implementing a bypass connection
If bypassing is required, employ mechanically or electrically interlocked contactors
between the motor and the drive and between the motor and the power line. Ensure
with interlocking that the contactors cannot be closed simultaneously.
WARNING! Never connect the supply power to the drive output terminals U2, V2
and W2. Line voltage applied to the output can result in permanent damage to the
unit.
Example bypass connection
An example bypass connection is shown below.
Switch Description Switch Description
Q1 Drive main switch S11 Drive main contactor on/off control
Q4 Bypass circuit breaker S40 Motor power supply selection
(drive or direct-on-line)
K1 Drive main contactor S41 Start when motor is connected direct-on-line
K4 Bypass contactor S42 Stop when motor is connected direct-on-line
K5 Drive output contactor