G
AMATRONIC
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LECTRONIC
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NDUSTRIES
L
TD
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Centric 3x480 Vac, Installation Guide, rel. 2.2
43
6.
Inserting and removing power modules
This chapter discusses the physical insertion and addition of modules to the system, the physical removal
of power modules from the system, and the related changes to the system configuration.
There are four basic operations that can be performed in this respect:
•
First-time insertion of modules at time of system installation.
•
Replacement of a module in an installed system.
•
Addition of a module to an installed system.
•
Removal of a module from an installed system.
Instructions for each type of operation are given below.
Keep in mind that it is desirable that the number of active dc-dc blocks always be equal to (or
greater than) the number of active UPS modules. This helps ensure that the system will be able to
support the load in battery mode. See Chapter 1 of the
Centric 3x480 User Guide
for more
information about the dc-to-dc converter blocks.
T
HE POWER MODULES ARE HEAVY
! T
HE INSERTION AND REMOVAL
OF POWER MODULES REQUIRES A TWO
-
PERSON TEAM
!
Figure 38: Moving a power module requires two persons
If you remove a UPS module or a dc-to-dc converter module from the Centric when the module is
operating, do not re-insert the module immediately. Wait five minutes, to allow the capacitors in the
module time to discharge.