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1 概述ＳＦＤ - 2 0 0 2 ,2 0 0 3型伺服操作器是ＤＤＺ -Ｓ系列仪表中的辅助单元 ,是Ｄ型操作器的品种之一。它将单相伺服放大器和联锁操作的功能溶为一体 ,可直接与ＤＤＺ -Ｓ型电动执行机构配套使用。在整个调节系统中 ,省去了单相伺服放大器单元 ,简化了系统 ,是近年被采
1 Overview The SFD-2 0 0 2, 2 0 0 3 servo operator is an auxiliary unit in the DDZ-S series instrument and one of the D-type operators. It will be single-phase servo amplifier and interlocking operation of the function as a whole can be used directly with the DDZ-S-type electric actuator supporting the use of. In the entire regulation system, eliminating the need for single-phase servo amplifier unit, simplifying the system, is the mining