15
COMMON
7. Operation
DANGER
Do not approach or touch rotating parts (output shaft, etc.) during operation; loose clothing may became caught in
these rotating parts and cause serious injury or death.
When the power supply is interrupted, be sure to turn off the power switch. Unexpected resumption of power may
cause electric shock, personal injury, or damage to the equipment.
Do not operate the unit with the terminal box cover removed. Return the terminal box cover to the original position
after maintenance, in order to prevent electric shock.
Do not open the terminal box cover when power is supplied to an explosion-proof type motor ; otherwise,
explosion, ignition, electric shock, personal injury, fire, or damage to the equipment may result.
CAUTION
Do not put fingers or foreign objects into the opening of the variator; otherwise electric shock, personal injury, fire,
or damage to the equipment may result.
The variator becomes very hot during operation. Touching the unit may result in burns.
Do not loosen the oil filler plug during operation; otherwise, hot, splashing lubricant may cause burns.
If any abnormality occurs during operation, stop operation immediately; otherwise, electric shock, personal injury,
or fire may result.
Do not operate the unit in excess of the rating; otherwise, personal injury or damage to the equipment may result.
• Oil-lubricated models are shipped without oil. Units must be filled with the proper amount of recommended oil prior to
start-up.
• Never turn speed control handwheel when Beier Variator is not in operation.
If handwheel is turned when the unit is not in operation, this will exert undue force on internal parts which in turn may
break disc and other parts.
• When starting under full load condition, it is easier to start on low speed range.
This is because Beier Variator can give a larger torque in low speed range.
• Cushion start is required when the moment of inertia of driven machine is big. Please consult us.
After the unit is installed, filled with oil and properly wired, check the following before operating:
(1) Is the wiring correct ?
(2) Is the unit properly coupled with the driven machine ?
(3) Are foundation bolts tightened firmly ?
(4) Is the direction of rotation as required.
(5) Does the oil level in the oil-lubricated model reach the top line of the oil gauge when the unit is at rest ?
After confirming these items without a load, gradually apply a load.
Check the items shown in Table 8.
Is abnormal sound or
vibration generated ?
(1) Is the housing deformed because the installation surface is not flat ?
(2) Is insufficient rigidity of the installation base generating excessive noise ?
(3) Is the shaft center aligned with the driven machine ?
(4) Is the vibration of the driven machine transmitted to the gearmotor or reducer ?
Is the surface temper-
ature of the variator
abnormally high ?
(1) Is the voltage rise or drop substantial ?
(2) Is the ambient temperature too high ?
(3) Does the current exceed the rated current shown on the rating plate ?
Table 8 Items to Check During Initial Start-up and Break-in Period
If any abnormality is found, stop operation and contact our nearest agent, distributor, or sales office.
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