14 | SAMLEX AMERICA INC.
SAMLEX AMERICA INC. | 15
SeCtION 11 |
Installation & removal of Modules
i
inFo
note: installation and removal of power supply modules should be performed
only by qualified personnel.
!
cAUtion!
Before removing a defective module or installing a new one, switch off
the 230V, 50/60hz input power and unplug the power cord from the mains out-
let.Please refer to the layout diagram of the module at figure. 1 Located
on page 21.
Upgrading to higher capacity – installing Additional module(s)
Additional optional module(s) (Model No. SEC-2012MPSB-230) can be added to upgrade
the output current capacity of SEC-40BRM / SEC-60BRM / SEC-80BRM-230 by steps of 20A
to a maximum of 100A. for example, an SEC-40BRM-230 (40A, with 2 modules) can be
upgraded to SEC-60BRM-230 (60A) by adding 1 more module or to SEC-80BRM-230 (80A)
by adding 2 more modules or to SEC-100BRM-230 (100A) by adding 3 more modules.
The optional module SEC-2012MPSB-230 comes with an LED and LED holder. It’s output
voltage is pre-set at 14.2 Volts.
The procedure to install additional module(s) is as follows :
1. Remove the top cover plate by unscrewing the 10 screws.
2. Each module sits on 6 stand-offs under the holes S1 to S6 (fig.1). Additional module(s)
are to be installed in the vacant space(s) adjacent to the right of the existing module.
Remove the screws from the 6 stand-offs for the adjacent vacant space for the module.
3. Place the module on the stand-offs with the l an N terminals (fig.1) Towards the front
panel. Align the holes and fix the module with the 6 screws. WARninG! please ensure
that screws S5 and S6 are very tight as the pads under these two screws connect the
output of the module(s) to the dc bus bar underneath. A loose connection under these
screws will result in sparking , overheating and consequent damage to the module.
4. Each module has independent AC power input wires. Locate unused pair of AC input
wires. (Black and white with insulated female quick connect terminals). The black wire
is required to be connected to the male tab terminal marked l (fig.1) And white wire
is required to be connected to the male tab terminal marked N (fig.1). Do not connect
these wires till step 8 below.
5. Terminal marked LED 2 (fig.1) is used for the front panel LED under “PSM Status (1 to
5)” and terminal marked LED 1 (fig.1) is used for remote indication through the d-sub
connector. The PSM status output signal from connector LED 1 is fed to the associated
opto-coupler on the small opto-coupler PCB (printed circuit board) & from there it is
fed to the d-sub connector. Connection to the opto-coupler PCB and onward to the
d-sub connector for remote indication is made using color coded pair of wires for each
of the 5 modules (please see the colour code for PSM 1 to 5 under remote monitor-
