UDEM认证说法正确，依据是2010年欧盟出台的“机械指令实施指南” 下载链接：https://www.ecmchina.com/UploadFiles/2011-03/%BB%FA%D0%B5%D6%B8%C1%EE%CA%B5%CA%A9%D6%B8%C4%CF.pdf

63 Machinery covered by the Low Voltage Directive

Electrical machinery that is not in any of the categories listed in Article 1 (2) (k) (and that is not concerned by one of the other exclusions) is in the scope of the Machinery Directive. When such machinery has an electrical supply within the voltage limits of the Low Voltage Directive (between 50 and 1000 V for alternating current or between 75 and 1500 V for direct current), it must fulfil the safety objectives of the Low Voltage Directive – see §222: comments on section 1.5.1 of Annex I. However, in that case,the manufacturer’s EC Declaration of Conformity should not refer to the Low Voltage Directive.

意思就是 有MD了，符合性声明就不用再体现LVD了，机构证书也是这个道理。