The motor of frequently reversible discharging equipment is very easy to be burnt out.

频繁可逆运转卸料设备，其电动机极易烧毁。

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Flange connection type VY51XXL (JIS 10k-fc200, SCS13A), valve and actuator integrated in a device, the actuator is equipped with a reversible synchronous motor what can be ran at low voltage 24vac.

法兰连接型VY 51 XXL (JIS 10 K - FC200, SCS13A)，阀及执行器整合在一个设备内，执行器配有一台可逆同步电机，可在低压24vac下运行。

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This artical proposes a microcomputer-based fully digitized reversible speed-regulating system for DC motor.

本文提出了一种用微型机控制的全数字化直流可逆调连系统。

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