Adjustment device for controlling electric drive of an elevator, electric drive of an elevator and method for controlling electric drive of an elevator
First Claim
1. Adjustment device in connection with an electric drive of an elevator,which electric drive of an elevator comprises an electric motor;
- and which electric drive of an elevator comprises a power supply apparatus of an electric motor for adjusting the supply voltage of an electric motor;
and which adjustment device comprises means for controlling a power supply apparatus of an electric motor;
and which adjustment device comprises a speed regulator for adjusting the speed of the electric motor;
wherein the adjustment device is arranged to determine the output voltage of the power supply apparatus of the electric motor in relation to the permitted maximum value of the output voltage, and in that the adjustment device is arranged to interrupt the operation of the speed regulator but to continue the operation of the power supply apparatus of the electric motor when the output voltage of the power supply apparatus of the electric motor reaches the permitted maximum value.
1 Assignment
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Accused Products
Abstract
An adjustment device for controlling the electric drive of an elevator in connection with a voltage reduction of the supplying network is disclosed. The electric drive of an elevator includes an electric motor and a power supply apparatus of for adjusting the supply voltage of the electric motor. The adjustment device includes a device configured to control the power supply apparatus and also a speed regulator for adjusting the speed of the electric motor. The adjustment device is arranged to determine the output voltage of the power supply apparatus of the electric motor in relation to the permitted maximum value of the output voltage, and the adjustment device is arranged to interrupt the operation of the speed regulator but to continue the operation of the power supply apparatus of the electric motor when the output voltage of the power supply apparatus of the electric motor reaches the permitted maximum value.
15 Citations
20 Claims
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1. Adjustment device in connection with an electric drive of an elevator,
which electric drive of an elevator comprises an electric motor; -
and which electric drive of an elevator comprises a power supply apparatus of an electric motor for adjusting the supply voltage of an electric motor; and which adjustment device comprises means for controlling a power supply apparatus of an electric motor; and which adjustment device comprises a speed regulator for adjusting the speed of the electric motor; wherein the adjustment device is arranged to determine the output voltage of the power supply apparatus of the electric motor in relation to the permitted maximum value of the output voltage, and in that the adjustment device is arranged to interrupt the operation of the speed regulator but to continue the operation of the power supply apparatus of the electric motor when the output voltage of the power supply apparatus of the electric motor reaches the permitted maximum value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. Method for controlling an electric drive of an elevator, wherein:
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the output voltage of the power supply apparatus of the electric motor in relation to the permitted maximum value of the output voltage is determined the operation of the speed regulator is interrupted but the operation of the power supply apparatus of the electric motor is continued when the output voltage of the power supply apparatus reaches the permitted maximum value. - View Dependent Claims (19, 20)
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Specification