Unipower Sageon II, Product Manual

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Installation Sageon II Bulk Product Manual
PM990-5201-00, Issue 6 3-1
3. INSTALLATION
3.1
MOUNTING THE POWER MODULE
The Power module is mounted into a standard 19” rack using 12-24 screws. A minimum of eight screws are required to
secure the Power Module into the rack. It is recommended to initially install the Power Module into the rack without either
the Controller or the rectifiers in place.
Figure 3-1 Mount points for securing Power Module in a rack
Wiring for the standard Power Module is rear access only.
3.1.1 Tools Required for Installation

No. 2 screwdriver (for tightening rack bolts)

No. 1 screwdriver

Insulated socket set wrench

Small flat-blade screwdriver (for tightening DIN rail terminal screws)
3.1.2 Gaining Access to Rear Wiring
NOTE: Access to the rear wiring should be limited to qualified service personnel. It is recommended to remove the AC
power before gaining access to the rear wiring due to the safety hazard present inside the electrical enclosure. Similarly, the
energy hazard associated with the batteries connected to the DC bus must be addressed with appropriately insulated tools
and other measures to prevent accidental short circuits to the DC bus.
To open the top rear cover, remove the rear M3 screws securing the Lexan cover to the top.
To gain further access to the wiring, remove the rear cover grill by removing the ten screws holding the Lexan grill. (See
Figure 2.5)
3.2
OVERVIEW OF EXTERNAL WIRING CONNECTIONS
SD-SAGEON2.LXX drawings, located in the back of the manual, show the internal and interface schematic for the Sageon II
Bulk. For indicating how a system is connected, the same schematic applies to other Power Module products. The system
shown is for a –48V system where the positive side of the DC bus is tied to ground, usually on the common return bar. It is
also possible to float the output, but under these conditions, there is no guarantee that all voltages on the DC bus will stay
below the Safety Extra-Low Voltage (SELV) limits with respect to ground during fault conditions.
The bulk DC output connections are shown in Figure 2.5. The positive terminal bus is located on the left side, looking from
the back.