Planning the electrical installation 43
Using residual current devices (RCD) with the drive
ACS320-03x drives are suitable to be used with residual current devices of Type B.
Other measures for protection in case of direct or indirect contact, such as separation
from the environment by double or reinforced insulation or isolation from the supply
system by a transformer, can also be applied.
Implementing a bypass connection
WARNING! Never connect the supply power to the drive output terminals U2,
V2 and W2. Power line voltage applied to the output can result in permanent
damage to the drive.
If frequent bypassing is required, employ mechanically connected switches or
contactors to ensure that the motor terminals are not connected to the AC power line
and drive output terminals simultaneously.