Werbung
Verfügbare Sprachen
Verfügbare Sprachen
5.
Start-up
5.1
Preparations
Before initial operation and after major inspections, check the complete plant both from a mechanical and electri-
cal point of view.
Examine that
• the installation and the operating conditions comply with the specified name plate data.
• the motor is properly installed and aligned.
• the driving elements are properly adjusted (e.g. proper belt tension, coupling properly aligned and balanced),
• the motor and its monitoring devices are properly wired.
• the earthing and equipotential bonding have been made as specified in the applicable regulations.
• all fastening screws, connecting elements and electrical connections are properly tightened.
• the key is saved unless prevented otherwise by driving elements such as pulleys, couplings etc.
• the separate ventilation is correctly connected and in proper service condition.
• the direction of rotation of the fan motor corresponds with the direction arrow on the fan housing.
• the cooling air flow is not impaired (the hot outlet cooling air must not be drawn in by the fan!).
• eventually existing brakes are O.K.
5.2
Initial start-up
The following measures are recommended to be taken after installing or inspecting the motors:
• Start the motor with no load.
• Check the mechanical running for any noise or vibrations on the bearings or end shields.
• If there is any abnormal noise or the motor runs unevenly, switch it off immediately and find out the cause.
• If the mechanical running improves immediately after the motor has been switched off, there is an electrical or
magnetic cause. If this is not the case, there is a mechanical cause.
• If the mechanical running is smooth at no load, load the motor. Check the running smoothness, measure the
voltage, current and power and record them. Measure and record these values also for the driven equipment,
if possible.
• Monitor the temperatures of the bearings, windings etc. until they have stabilised and record the values (as far
as this is possible with the available measuring equipment).
5.3
Operation
In case of changes as compared to the normal operation, e.g. increased temperature, noises, oscillations, find out
the cause. In case of doubt switch off the motor !
Connection
GB - 23
Werbung
