Technical information

Technician’s Handbook
138
Power-up Procedures
Powering Up the Control Node
1. Ensure the control cards are installed before powering
up. Control cards cannot be installed when the system is
under power.
2. Connect the external power cord(s) at the rear of the
node.
3. Set the power switch(es) on the rear of the node to “I”
(ON).
4. (Redundant systems only) If your system is partitioned,
enter the JOIN command from the inactive plane and
then from the active plane
Powering Up the Peripheral Nodes
1. Ensure the voltage selector switch is set to the required
setting for your country.
2. Connect the external power cord at the rear of the node.
3. Set the power switch on the rear of the node to “I” (ON).
4. Switch on the power converter.
5. Complete the procedure Checking a Non-redundant
System on page 157 or Checking a Redundant System
on page 158.
6. If your system is redundant, set ACTIVITY FREEZE (at
the control node) to OFF.