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If the reference resistance value is not attained, the winding is too damp and must be oven dried.
The oven temperature should be 90°C - 100 °C for 12 hours.
Measuring circuit voltage
Minimum insulation resistance for new,
cleaned or repaired windings
MECHANICAL INSTALLATION
Safety Considerations
The machine is intended for installation and use by qualified personnel, familiar with health
and safety requirements and national legislation.
Safety equipment necessary for the prevention of accidents at the installation and operating
site must be provided in accordance with local regulations.
The temperature of the outer casing of the motor may be too hot to touch during normal
operation and especially after shut-down.
Be aware of rotating parts of the motor.
Do not open terminal boxes while energized.
Before start-up, please check that:
Condensation drain holes are always located at the lowest point of the motor!
Connect the motor corresponding to the specified direction of rotation.
Ensure that all seals and sealing surfaces are undamaged and clean.
When aligning and fastening the motor, please bear the following in mind:
The motor shall be mounted on a base, which is rigid enough to prevent distortion and
vibration.
Feet and flanges must be fastened securely.
Avoid using rigid coupling measures.
The motors must be carefully aligned. Incorrect alignment can lead to beating failure,
vibration, even shaft fracture.
Coupling halves and pulleys must be fitted on the shaft by using suitable equipment and
tools which do not damage the bearings and seals. Never fit a coupling half or pulley by
hammering or by removing it using a lever pressed against the body of the motor
Excessive belt tension will damage bearings and can cause shaft damage.
If a belt drive is used, make sure that the driving and the driven pulleys are correctly aligned.
The motor should be mounted in such a way that the cooling air should flow to and away
from the motor without obstruction.
Do not exceed permissible loading values for bearings as stated in the product catalogues.
As standard, balancing of the motor has been carried out using half key.
Coupling halves or pulleys must be balanced after machining the keyways. Balancing must be done in
accordance with the balancing method specified for the motor.
When aligning the motor to the load, it must be ensured that the couplings used are on the same
axis. In addition, at least 2-5 mm axial clearance is required between the couplings.
If the belt pulley system is used when connecting the motor to the load, care must be taken to
ensure that the pulleys are in parallel axes and that the belt is not too tight or too loose.
ELECTRICAL INSTALLATION AND OPERATION CONDITIONS
Insulation Resistance of The Stator Winding at 25 °C
EN
500 V
100 MΩ
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