KEPCO MAT 1/3 Rack - Manual (Page 24)

MAT 1/3 RACK/ 112404 2-7
• Proceed further to slide the Module in by lifting the handle upward. When the Module is
half way inserted (at the begining of the transformer) remove the hand from the bottom
of the unit
• At this point of the insertion process ensure that the Bit Bus twisted pair of white wires
on the right side of the Power Transformer (as viewed when looking down over the front
panel towards the back of the unit) does not get caught by the right edge of the Rack
Adapter
• As the Power Module is inserted inside the Rack Adapter completely, a slight resistance
will be felt when the Module connectors engage the mating connectors of the Rack
Adapter. Continue to apply steady but firmer pressure to overcome the insertion force of
the various connectors.
• If the module cannot be inserted fully using this type of force, remove the Power Module
and inspect the rear panel and Rack Adapter for obstruction or damage. If the damage
cannot be isolated return both the Power Module and Rack Adapter to Kepco along with
a complete description of the problems encountered.
• when installed in a Rack Adapter that is in a Rack, the Rack Adapter must be securely
fastened to the Rack before the Power Module is installed to avoid structural damage to
the Rack Adapter.
• when being installed into the Rack Adapter, must be supported not only at the front of
the assembly at the handle (by one hand), but also at or near the center of gravity of the
chassis, underneath the assembly near the Power Transformer (by the other hand).
• if already in a Rack Adapter which is to be installed in an Equipment Rack, must be han-
dled in exactly the same way as when installing the Power Module itself into a Rack
Adapter. Failure to observe this caution could result in misalignment of the Power Mod-
ules with the Rack Adapter.
MAT Power Modules may also be operated as a bench type instrument. Leave the RA 50 or RA
51 feet installed, then install the MAT 1/3 Rack Power Module in the RA 50 or RA 51 Rack
Adapter housing and secure with two front panel slotted screws. The RA 50 Rack Adapter
houses up three 1/3 Rack Power Modules. The Rack Adapter may be equipped with Front Filler
panels. The RFP 50-1 may be used to close one channel in the RA 50 or RA 51 Rack Adapter.
Filler Panel RFP 50-2 can be used to close two channels in the RA 50 or RA 51 Rack Adapter.
For installation into confined spaces care must be taken that the surrounding environment does
not exceed the maximum specified ambient temperature of 50°C (see PAR. 2.5).
2.7 GROUNDING
2.7.1 SAFETY GROUNDING
a. AC Safety Ground: The Power Module is connected to the AC safety ground via the
AC INPUT/CONTROL BUS connector and the corresponding rack adapter connector.
b. Isolation From Ground: The DC output is isolated from the ac source and from the
chassis or ground. The maximum output voltage that can be supported between either
output terminals and ground or chassis is 500 Vdc plus the maximum output voltage of
the Power Module. Either terminal of the output may be grounded.