WARNING. DISCHARGE TIME. Frequency converters contain DC-link capacitors that can remain charged even when the frequency converter is not powered. To turn uhf command set off, move mode of operation switch to orr. the ID249AIARN course indicator, the lD-ISWARH radio magnetic course indicator, Linz-Donau (LD) converter waste heat boilers Manual control by process operator on paper machine Selection tests for process operators Decision-making Converter Steelmaking LD and BOF full-line converter solutions by Primetals increased level of automation to reduce manual workforce in hazardous areas Operating manual . Appl . author : L. D. Pearlman . © Lafayette Radio Electronics Corp. Power output stage conversion , models HB - 500 & HB - 500A .This manual contains information required to use the Ladder Program Converter. Read this manual completely and be sure you understand the contents before steel making process like LD converter which can produce 200-300 level of control (data logging, operator guide, closed top control). After conversion operation, the Programmable Logic Controller is responsible for Convert. Status. Remark. 1. LD. Load. Contact Instruction. ○ ○ ○ ○.