Nord Drivesystems B1091, Operating Manual With Installation Instructions

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Motors – Manual with installation instructions
10 B 1091 en-1221
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1.1.2 List of safety and installation notes
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DANGER!
Electric shock
The motor is operated with a dangerous voltage. Touching certain conducting components (connection terminals
and supply cables) will cause electric shock with possibly fatal consequences.
Even when the motor is at a standstill (e.g. due to the electronic block of a connected frequency inverter or a
jammed drive unit) the connection terminals and supply cables may carry a dangerous voltage. A motor standstill
is not identical to electrical isolation from the mains.
Even if the drive unit has been disconnected from the mains, a connected motor may rotate and possibly
generate a dangerous voltage.
Installation and work must only be carried out when the motor is at a standstill and is disconnected (all phases
disconnected from the mains).
Follow the 5 Safety Rules (1. Switch off the power, 2. Secure against switching on, 3. Check for no voltage, 4.
Earthing and short circuiting, 5. Cover or fence off neighbouring live components).
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WARNING
Hazard due to heavy loads
The large weight of the motor must be taken into account during any transportation or installation work.
Incorrect handling may cause the motor to fall or swing without control and therefore cause severe, and possibly
fatal injuries due to impact, crushing and other physical injuries. In addition, severe damage to the motor and its
surroundings are possible.
Therefore:
– Do not stand under suspended loads
– Only use the attachment points provided
– Check that lifting equipment and lashings have and adequate load capacity and are undamaged
– Avoid hectic movements
– Use personal protective equipment
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WARNING
Injury due to movement
Under certain conditions (e.g. switching on the power supply, releasing a holding brake) the motor may start to
move. The machinery which it drives (press / chain hoist / roller / fan etc.) may then make an unexpected
movement. This may cause various injuries, including to third parties.
Before switching on, secure the danger area by warning and removing all persons from the danger area.
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WARNING
Hazard due to loose parts
Care must be taken that there are no loose parts on the motor. Otherwise, these may cause injury during
transportation and installation work, or when the motor in in operation.
Loose carrying or lifting eyes may cause the motor to fall during transportation.
Parallel keys on the motor shaft may be thrown out when the motor shaft rotates.
Fasten or remove loose parts and carrying or lifting eyes; secure or remove free parallel shaft keys on the motor
shaft(s).