Supplemental Installation Manual for ACS580-0P
7
Safety instructions
• The Safe torque off function does not
remove the voltage from the main and
auxiliary circuits. The function is not effective
against deliberate sabotage or misuse.
WARNING!
Use a grounding wrist band
when you handle the printed circuit
boards. Do not touch the boards unnecessarily.
The boards contain components sensitive to
electrostatic discharge.
Grounding
These instructions are for all personnel who are
responsible for the electrical installation,
including the grounding of the drive.
WARNING!
Obey these instructions. If
you ignore them, injury or death, or
equipment malfunction can occur, and
electromagnetic interference can increase.
• If you are not a qualified electrical
professional, do not do grounding work.
• Always ground the drive, the motor and
adjoining equipment to the protective earth
(PE) bus of the power supply. This is
necessary for the personnel safety. Proper
grounding also reduces electromagnetic
emission and interference.
• In a multiple-drive installation, connect each
drive separately to the protective earth (PE)
bus of the power supply.
• Make sure that the conductivity of the
protective earth (PE) conductors is
sufficient. See section
in
ACS580 Hardware
Manual.
Obey the local regulations.
• Connect the power cable shields to the
protective earth (PE) terminals of the drive.
• Standard
IEC/EN & UL
61800
-
5
-
1 (section
4.3.5.5.2.) requires that as the normal touch
current of the drive is higher than 3.5 mA AC
or 10 mA DC, you must use a fixed
protective earth (PE) connection. In addition,
• install a second protective earth
conductor of the same cross-sectional
area as the original protective earthing
conductor,
or
• install a protective earth conductor with a
cross-section of at least 7 AWG
(10 mm
2
) Cu,
or
• install a device which automatically
disconnects the supply if the protective
earth conductor breaks.
Additional instructions for
permanent magnet motor drives
Safety in installation, start-up and
maintenance
These are additional warnings concerning
permanent magnet motor drives. The other
safety instructions in this chapter are also valid.
WARNING!
Obey these instructions. If
you ignore them, injury or death and
damage to the equipment can occur.
• Do not work on a drive when a rotating
permanent magnet motor is connected to it.
A rotating permanent magnet motor
energizes the drive including its power
terminals.
Before installation, start-up and maintenance
work on the drive:
• Stop the motor.
• Disconnect the motor from the drive with a
safety switch or by other means.
• If you cannot disconnect the motor, make
sure that the motor cannot rotate during
work. Make sure that no other system, like
hydraulic crawling drives, can rotate the
motor directly or through any mechanical
connection like felt, nip, rope, etc.
• Measure that the installation is de-
energized.
• Use a multimeter with an impedance of at
least 1 Mohm.
• Make sure that the voltage between the
drive output terminals (T1/U, T2/V, T3/W)
and the grounding (PE) busbar is close to
0 V.
Summary of Contents for ACS 580-OP
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