5 | Installation
18 / 36
Instruction Manual Supplement DOLPHIN VL Systems ATEX_EN_en
• Provide a lockable disconnect switch on the power line so that the machine is com-
pletely secured during maintenance tasks.
• Provide an overload protection according to EN 60204-1 for the motor.
• Make sure that the motor of the machine will not be affected by electric or electro-
magnetic disturbance from the mains; if necessary seek advice from Busch.
• Connect the protective earth conductor.
• Electrically connect the motor.
NOTICE
The motor frequency is too low.
Loss of efficiency, not enough power to create the sealing liquid ring.
• The motor speed must always be higher than the minimum speeds shown in the
5.3.1 Wiring Diagram Three-Phase Motor
NOTICE
Incorrect direction of rotation.
Risk of damage to the machine!
• Operation in the wrong direction of rotation can destroy the machine in a short time!
Prior to start-up, ensure that the machine is operated in the right direction.
NOTICE
Incorrect direction of rotation.
Risk of damage to the vacuum system!
• Operating the vacuum system with the rotation in the wrong direction can result in
the operating liquid flowing back to the vacuum system. Prior to start-up, check for
correct direction of rotation.
If the rotation of the motor must be changed:
• Switch any two of the motor phase wires.
5.4 Electrical Connection of the Monitoring Devices
NOTE
The accessories below are mandatory for machine operation in potential explosive at-
mosphères.
If other specific components should be used, refer to the instruction manual of the acces-
sory in question.
Summary of Contents for DOLPHIN VL 0100 A
Page 34: ...Note...
Page 35: ...Note...
