7. Install temporary grounding as required by the local regulations.
8. Ask the person in control of the electrical installation work for a permit to work.
￭ Additional instructions and notes
WARNING!
Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur.
• If you are not a qualified electrician, do not do electrical installation or maintenance
work.
• Do not install the drive if the electrical power network, motor/generator, or environmental
conditions do not agree with the drive data.
• We do not recommend that you secure the cabinet by arc welding. If you have to, obey
the separate welding instructions in the drive manuals.
• Do not do insulation or voltage withstand tests on the drive.
Note:
• The motor cable terminals of the drive are at a dangerous voltage when the input power
is on, regardless of whether the motor is running or not.
• When the input power is on, the drive DC bus is at a dangerous voltage.
• If brake chopper and resistor are in use, they are at a dangerous voltage. (Option +D150)
• External wiring can supply dangerous voltages to the relay outputs of the control units
of the drive.
• 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.
Optical components
WARNING!
Obey these instructions. If you ignore them, damage to the equipment can occur.
• When you unplug the fibre optic cables, always hold the connector, not the cable itself.
• Do not touch the ends of the fibers with bare hands as the ends are extremely sensitive
to dirt.
• Do not bend the fiber optic cables too tightly. The minimum allowed bend radius is
35 mm (1.4”).
Printed circuit boards
WARNING!
Use a grounding wrist band when you handle 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 grounding of the drive.
18 Safety instructions
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