Foreseeable Misuse; Residual Hazards - Lenze M MA Series Operating Instructions Manual

2.3

Foreseeable misuse

¯ Do not operate the motors
–
... in explosion−protected areas
–
... in aggressive environments (acid, gas, vapour, dust, oil)
–
... in water
–
... in radiation environments
)
Note!
Increased surface and corrosion protection can be achieved by using
adapted coating systems.
2.4

Residual hazards

Protection of persons
¯ The motor surfaces can become very hot. Danger of burns when touching!
–
Provide protection against accidental contact, if necessary.
¯ Danger of unintentional starting or electrical shocks
–
Connections must only be made when the equipment is deenergised and the
motor is at standstill.
–
Installed brakes are no fail−safe brakes.
Motor protection
¯ Installed thermal detectors are no full protection for the machine.
–
Installed overload protection does not prevent an overload under any
conditions.
¯ Installed brakes are no fail−safe brakes.
–
The torque may be reduced by disruptive factors that cannot be influenced such
as contamination by oil.
¯ Fuses are no motor protection.
–
Use current−dependent motor protection switches at average operating
frequency.
–
Use installed thermal detectors at high operating frequency.
¯ Too high torques cause a fraction of the motor shaft.
–
The maximum torques according to catalogue must not be exceeded.
¯ Lateral forces from the motor shaft may occur.
–
Align shafts of motor and driving machine exactly to each other.
¯ If deviations from normal operation occur, e.g. increased temperature, noise,
vibration, determine the cause and, if necessary, contact the manufacturer. If in
doubt, switch off the motor.
Lenze ¯ BA 33.0005 ¯ 5.0
Safety instructions
Foreseeable misuse
2
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