Answer Drives GT3000 - Electrical Installation

GT300 Installation
IMGT30017EN 25
3A.3 Electrical installation
Qualified technicians shall perform all electrical maintenance and installation operations on GT3000.
All standard electrical safety procedures must be followed:
 Never touch anything within the drive until verifying that it is neither hot nor live.
 Always wear insulated or rubber safety shoes and wear safety glasses.
 Never work alone.
 Never connect any grounded meters or oscilloscopes to the system.
 Never remove safety shields.
 Always use extreme caution when handling components or taking measurements inside the enclosure.
The chassis does not have internal fuses. Suitable fuses must be provided immediately upstream the drive. See
table 3A.3.2 for fuse selection.
DANGER! RISK OF FIRE, HEAVY DAMAGE OR INJURIES! Never use fuses different from the ones
specified or run the drives without line fuses. Wrong fuses may cause fire, heavy damage to equipment and/or
nearby connected parts, or possible injuries. Some units (See table 3.2) need separate line fusing for blowers
and auxiliary circuits.
Do not apply power to the drive if any moisture, dust or caustic/corrosive chemicals may have entered the
cabinet or internal components.
DANGER! RISK OF FIRE, HEAVY DAMAGE OR INJURIES! GT3000 drives are open type devices and must
be installed strictly as instructed in the HARDWARE MANUAL and in full compliance with existing standards
and regulations.
DANGER! GT3000 and all connected devices MUST BE SUITABLY GROUNDED.
DANGER! RISK OF DEATH OR ELECTRICAL SHOCK! The following safety steps must be strictly followed
before servicing the unit:
Perform supply power lockout/tag out procedure and open the main disconnect to the drive.
Do not change the insulation distances of removed insulating material and coverings.
If isolation tests on the motor and cables must be performed, disconnect the cables from the drive first. High
potential tests must not be performed on drive components.
Subsequently switching on and off in a short time period causes reduce the condensers' lifetime and cause a
burning of the precharge resistors and as a consequence a damage of the inverter, in case of cycles with more
than ten startings per hour. Do not use this principle for motor inching.
Using an independent generator, generated harmonics can distort the output voltage wave form and overheat the
generator. The generator power must be at least 5 times the inverter power in kVA.
If a contactor is installed at the inverter output, make sure the contactor opening and closing occur with inverter
disabled.
Do not apply power to output terminals.
The drive contains components sensitive to electrostatic charges; such components may be damaged if incorrectly
handled. During replacement or maintenance operation of the electronic boards, the following steps should be
followed:
 Use a maintenance kit for electrostatic charges. Electrostatic Discharge (ESD) precautions should be taken:
 Wear properly grounded static straps.
 Handle the boards by holding them by the edges.
CAUTION!
WARNING