Summary
Preface
P. 6
Chapter 2
P. 17
Technical data
Chapter 5
P. 76
Reception, storage
and installation
Chapter 4
P. 54
General information
Chapter 3
P. 47
Application notes
Chapter 6
P. 115
Options
Chapter 7
P. 129
Preventive maintenance
Chapter 1
P. 15
Overview
and installation diagram
Answer Drives 1000
59
4
4.3.2 REQUIREMENTS IN CASE OF ELECTRICAL INSTALLATION
ELECTRICAL INSTALLATION
Maintenance and installation operations on the AD1000
must be performed by qualified technicians.
It is mandatory to follow the standard electrical protection procedures:
- Do not touch anything inside the drive without first verifying that it is
not thermally hot or electrically powered
- Always wear isolated or rubber safety shoes and wear eye protection.
- Never work alone.
- Never connect grounded counters or oscilloscopes to the system.
- Never remove the safety screens.
- Always take extreme care when handling components or taking
measurements inside the electrical panel.
• The drive does not have internal fuses. It is necessary to provide
adequate fuses immediately upstream of the drive. See table 5.4.1.1
for the fuses selection.
• DANGER! RISK OF FIRE, SERIOUS DAMAGE OR INJURY!
Never use fuses different from those indicated or operate drives without
line fuses. Incorrect fuses can cause fire, serious damage to equipment
and/or connected parts in the vicinity, as well as possible injuries.
Some units (see Table 2.8.1) require separate line fuses for fans and
auxiliary circuits.
• Do not supply power to the drive if moisture, dust or caustic/corrosive
chemicals can penetrate inside the electrical panel or internal
components.
• DANGER! RISK OF FIRE, SERIOUS DAMAGE OR INJURY!
The AD1000 drives are devices of open type and must mandatorily be
installed according to the instructions of the MANUAL, in full compliance
with standards and regulations in force.
• DANGER! The AD1000 and all connected devices MUST BE PROPERLY
CONNECTED TO GROUND.
• DANGER! RISK OF DEATH OR ELECTRIC SHOCK!
It is necessary to take the following mandatory safety measures, before
performing the installation.
• Perform the power supply block/exclusion procedure and open the main
disconnector of the drive.
• Do not change the insulation distances of the material and of
the removed covers.
• If it is necessary to perform insulation tests on the motor and cables,
before proceeding first disconnect the cables from the drive. It is not
required to run high potential tests on the components of the drive.
• Repeated operations with rapid intervals of drive power on and power
off through the line contactor reduce the lifetime of the filter capacitors.
Cycles with more than 10 operations per hour can cause the burning of
the pre-charge resistor and will seriously damage the drive. Never use this
system to start and restart the drive.
• Power supply from the generator set. The harmonics generated by
the drive may deform the generator voltage and cause its overheating.
It is recommended to provide a generator with a capacity equal to
approximately 5 times the drive power in kVA.
• If a contactor has been installed on the drive output make sure that
the opening and closing occur with disabled drive.
• Do not supply power to the output terminals.
4.3.2 REQUIREMENTS IN CASE OF ELECTRICAL INST
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