System Maintenance; Replacing A Cem+ Control Module - ETC sensor+ CEM+ Manual

System Maintenance

WARNING:
AVERTISSEMENT :
WARNING:
AVERTISSEMENT :

Replacing a CEM+ Control Module

1. Open the rack door and locate the control module labeled CEM+ within the rack.
2. Remove existing control module as explained in
3. Install the new control module in the rack and use your thumbs on the outer edge of the control
module to firmly seat the module in its connectors until you feel it hit the back of the connector.
CAUTION:
4. Apply power to the Sensor+ rack.
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RISK OF ELECTRIC SHOCK! Power down the rack before removing the
CEM+. Only remove modules with the rack powered off, following
these instructions or as instructed by ETC Technical Services.
RISQUE DE MORT PAR ÉLECTROCUTION! Mettez le rack de gradation
hors tension avant de retirer le CEM+. Ne retirez les modules de
gradation ou de contrôle que lorsque le rack est éteint, en suivant ces
instructions ou selon les instructions des services techniques ETC.
Removing modules exposes the phase bars inside of the rack. When the
rack is powered on, phase voltages inside the rack can cause injury or
death. When the rack is powered on, modules should only be removed
by qualified installers or electricians.
RISK OF ELECTRIC SHOCK! Failure to disconnect all power to the dimmer
rack before working inside could result in serious injury or death.
RISQUE DE MORT PAR ÉLECTROCUTION! Travailler à l'intérieur du rack
de gradation sans avoir déconnecté le courant peut entrainer des
blessures graves, voire mortelles.
De-energize main feed to the dimmer rack and follow appropriate
Lockout/Tagout procedures as mandated by NFPA 70E. It is important to
note that electrical equipment such as dimmer racks can present an arc
flash hazard if improperly serviced. This is due to the high amounts of
short-circuit current available on the electrical supply to this equipment.
Any work must comply with OSHA Safe Working Practices.
CEM+ uses high density edge card connections to pass power and data to and
from the rack which requires 7 lbs insertion force. A partially inserted CEM+
may result in incorrect operation or even damage to components of the rack.
Remove a CEM+ Module
Sensor+ CEM+ User/Config Manual
page 56
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