DCS manual Safety Instructions, Overview, Warnings, DCS 500B / DCP 500B Operating Instructions

Safety Instructions

Overview	This chapter contains safety instructions which must be complied
	with during installation, operation and maintenance of the power
	converters series DCS 500B / DCF 500B or DCP 500B. If these in-
	structions are not complied with, this may result in injuries (perhaps
	even with fatal) or in damage to the power converter, the motor and
	the driven machine. Before starting with any work whatsoever at or
	with this unit, you must read the information given in this chapter.
Warnings	Warnings provide information on states which if the specified pro-
	cedure for the state concerned is not meticulously complied with
	may result in a serious error, in major damage to the unit, in injury
	to persons and even in death.
	They are identified by the following symbols:
	Danger: High Voltage! This symbol warns you of
	high voltages which may result in injuries to persons
	and/or damage to equipment. Where appropriate, the
	text printed adjacent to this symbol describes how
	risks of this kind may be avoided.

●All electrical installation and maintenance work on the thyristor power converter must be carried out by properly qualified staff who have been thoroughly trained in electrical engineering.

●The thyristor power converter and its adjacent units must be properly earthed by qualified professionals.

●You must NEVER perform any work on the thyristor power con- verter while it is still switched on. First switch the unit off, use a measuring instrument to make absolutely sure that the power converter has really been de-energized, and only then you may start with the work concerned.

●Due to external control circuits, there may be dangerously high voltages present at the thyristor power converter even after the line voltage has been switched off. So always work at the unit with appropriate caution! Non-compliance with these instructions may result in injury (or even death!).

DCS 500B / DCP 500B Operating Instructions i

3ADW000055R0401_DCS500B_Operating Instruction_e_d