nord 6051302, Руководство по эксплуатации и сборке

Страница: 22 / 72

Motors – Operating and Assembly Instructions
22 B 1091 en-2722
2 Maintenance and servicing
Pos: 48 /Anl eitungen/M otoren/B1091 Drehstromm otoren/Sicher heitshi nweise/Gefahr - Elektrischer Schl ag - Motor en [B1091] @ 11\m od_1459952302755_388.docx @ 316085 @ @ 1
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).
Pos: 49 /Anl eitungen/M otoren/B1091 Drehstromm otoren/Sicher heitshi nweise/W arnung - Beweg ung - M otoren [B1091] @ 11\mod_1459953068537_388.docx @ 316120 @ @ 1
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.
Pos: 50 /Anl eitungen/M otoren/B1091 Drehstromm otoren/2. Instandhaltung, Wartung/Sicherheitsm aßnahmen @ 7\mod_1431354500198_388.docx @ 217840 @ 2 @ 1
2.1 Safety measures
Before starting any work on the motor or the device, but especially before opening the covers of active
components, the motor must be isolated according to regulations. In addition to the main power circuits,
any additional or auxiliary circuits must be taken into account.
The usual "5 Safety Rules" e.g. according to DIN VDE 0105 are:
• Disconnect
• Secure to prevent reactivation
• Check for no voltage on all poles
• Earth and short circuit
• Cover or cordon off adjacent live components
These measures may only be removed when the maintenance work is complete.
Motors must be properly inspected at regular intervals; current national standards and regulations must
be complied with. In particular, special attention must be paid to any mechanical damage, free path of
the cooling air, abnormal noises and correct electrical connection.
Only original parts may be used as spare parts with the exception of standardised, commercially
available and equivalent parts.
Swapping parts between motors of the same type is not permissible.
Information
Condensation outlets
If the motors are designed with closed condensation outlets, these must be opened occasionally in order to allow
any accumulated condensation to drain off. Condensation outlets must always be located at the lowest point of
the motor. During installation of the motor care must be taken that the condensation outlets point downwards
and are closed. Open condensation outlets cause a reduction of the protection class.