Commissioning; Important Notes; Before Initial Switch-On; Functional Test - Lenze MCM Series Mounting And Switch-On Instructions

Commissioning

Functional test

Commissioning

Important notes

NOTICE
Do not brake the motor by short-circuit operation.
Short-circuit braking may damage the motor.

Before initial switch-on

That the drive does not show any visible signs of damage.
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Is the mechanical fixing o.k.?
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Has the electrical connection been implemented correctly?
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Are all rotating parts and surfaces that may become hot protected against contact?
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Is the featherkey radially secured during the test run without output elements?
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Have all screwed connections of the mechanical and electrical parts been tightened?
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Is it ensured that the cooling air can be freely supplied and discharged?
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Has the PE conductor been connected correctly?
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Have the protective devices against overheating (temperature sensor evaluation) been
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activated?
Is the inverter parameterised correctly for the motor? (See operating instructions for the
•
inverter)
Are the electrical connections ok?
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Is the phase sequence of the motor connection correct?
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Is a protection against contact provided in front of rotating parts and in front of surfaces
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that can get hot?
Is the contact of good electrical conductivity if a PE connection on the motor housing is
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used?
Before initial switch-on, after a longer downtime or after overhaul of the motor, check the
insulation resistance because condensed water may have formed.
With values ≤1 kΩ per volt of rated voltage, the insulation resistance is inadequate and no
•
voltage may be applied.
Dry the winding until the insulation resistance is >1 kΩ per volt of the rated voltage.
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Functional test
After commissioning, check all individual functions of the drive:
Rotating direction in decoupled state.
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Torque behaviour and current consumption
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Function of the feedback system
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Brake function
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During operation, carry out inspections on a regular basis. Pay special attention to:
Unusual noises
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Irregular running
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Increased vibration
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Loose fixing elements
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Condition of electrical cables
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Speed variations
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Deposits on the drive system and in the cooling channels
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