
1.1 Warnings 
To avoid electric arcing and hazards to personnel and electrical contacts, 
never connect/disconnect the servo drive while the power source is on. 
Power cables can carry a high voltage, even when the motor is not in 
motion. Disconnect the Drum from all voltage sources before it is 
opened for servicing. 
The Drum servo drives contain grounding conduits for electric current 
protection. Any disruption to these conduits may cause the instrument 
to become hot (live) and dangerous. 
After shutting off the power and removing the power source from your 
equipment, wait at least 1 minute before touching or disconnecting parts 
of the equipment that are normally loaded with electrical charges (such 
as capacitors or contacts). Measuring the electrical contact points with a 
meter, before touching the equipment, is recommended. 
1.2 Cautions 
The Drum servo drives contain hot surfaces and electrically-charged 
components during operation. 
The maximum DC power supply connected to the instrument must 
comply with the parameters outlined in this guide. 
When connecting the Drum to an approved 12~195 VDC auxiliary power 
supply, connect it through a line that is separated from hazardous live 
voltages using reinforced or double insulation in accordance with 
approved safety standards. 
Before switching on the Drum, verify that all safety precautions have 
been observed and that the installation procedures in this manual have 
been followed. 
Drum Installation Guide Safety Information 
MAN-DRUIG (Ver. 1.0) 
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