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7
Commissioning
7.1
Personnel qualifications
7.2
Operator responsibilities
7.3
Direction of rotation monitoring
Fig. 12: Correct direction of rotation
7.4
Operation in an explosive atmo-
sphere
302
Commissioning
WARNING
Hand and foot injuries due to lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety gloves for protection against cuts
• Safety shoes
• Safety helmet must be worn if lifting equipment are used!
▪ Electrical work: A qualified electrician must carry out the electrical work.
▪ Operation/control: Operating personnel must be instructed in the functioning of the
complete system.
▪ Provide installation and operating instructions by the mixer or at a place specially re-
served for it.
▪ Make the installation and operating instructions available in a language the personnel
can understand.
▪ Make sure that the installation and operating instructions are read and understood by
all personnel.
▪ All safety devices and emergency cut-outs on the system-side must be active and
checked to ensure that they work properly.
▪ The mixer is suitable for use under the specified operating conditions.
The mixer is checked at the factory and set to the correct direction of rotation for a
clockwise rotating field. Connection is made in accordance with the specifications in
chapter "Electrical connection".
Direction of rotation check
‡
Mains connection with clockwise rotating field present.
‡
Rotating field inspected by a qualified electrician.
‡
No persons are allowed in the working area of the mixer.
‡
Mixer securely installed.
WARNING! Do not touch mixer with hands! The high starting torque can lead to
serious injuries!
‡
Propeller is visible.
1. Switch on the mixer. Max. operation duration: 15 s!
2. Direction of propeller rotation:
View from front: The propeller rotates anti-clockwise (to the left).
View from behind: The propeller rotates clockwise (to the right).
▶ Direction of rotation correct.
Incorrect direction of rotation
If the direction of rotation is false, change the connection as follows:
▪ Direct starting: swap two phases.
▪ Star-delta starting: swap connections of two windings (e.g. U1/V1 and U2/V2).
NOTICE! After changing this connection, check the direction of rotation again!
Approval accord-
ing to
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ATEX
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FM
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WILO SE 2019-01
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