Dc System Disconnection Procedure - Emerson Centellis 2000 Shelf Release 3.0 Manual

3.4.2.2

DC System Disconnection Procedure

To disconnect the system from power feed, proceed as follows:
1. Make sure that the power feeds you plan to remove are powered off and cannot be
switched on while you are working.
Personal Injury
Touching the PEM power input terminals with metallic objects on your hands, wrists,
or hanging from your neck may lead to severe injuries through electric shock and burning.
Do not wear any metallic attire or commodity on your hands, wrists, or hanging from your
neck when working at the power input terminals or power input cables. Be extremely
careful when you use electrically conductive tools near the PEMs.
Short Circuit and Personal Injury
Ensure that the power feeds you plan to remove or attach are powered off and cannot be
switched on while you are working.
Ensure that all power input lines are not energized. Be careful with the used tools in order to
prevent a short circuit.
2. To ensure that the PEMs are not energized, verify that the In LEDs (in the middle) are
off.
3. Loosen the connector fastening screws at both sides of the pluggable screw
terminals.
4. Remove the pluggable screw terminals.
Centellis 2000 Shelf Release 3.0 Installation and Use (6806800L99F)
System Installation
69