Sageon II 200A (N+1) Power Distribution system
Commissioning
PM990-5202-200, Rev. 6
3-3
3.3 MOUNTING THE POWER MODULE
The power module is mounted into a standard 19” or 23”rack using 12-24 screws. A minimum of 4
screws are required to secure the power module into the rack (more are required for systems including
distribution.. It is recommended to initially install the power module into the rack without either the
controller or the rectifiers in place. (Racks are required and ordered as line items with the Sageon 200A
system. Systems will typically be mounted at the factory and shipped as a complete unit.)
FIGURE 3-1 MOUNT POINTS FOR SECURING POWER MODULE IN A RACK
Wiring for the standard distribution power module is front and rear access.
Tools Required for Installation
•
No. 2 screwdriver (for tightening rack bolts)
•
No. 1 screwdriver
•
½" insulated wrench
•
Small flat-blade screwdriver (for tightening DIN rail terminal screws)
3.4 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 through the use of appropriately insulated tools and other measures to prevent
accidental short circuits to the DC bus.
To open the rear cover, remove the rear screws securing the cover to the back. The back cover and AC
box cover plate can be removed to provide access to the wiring. (See Figure 2.10)
3.5 OVERVIEW OF EXTERNAL WIRING CONNECTIONS
Figures 3-2 through 3-4 shows the internal and interface schematic for the Sageon 200A power module
with distribution. For the purpose of indicating how a system is connected, the same schematic applies to
other power module products. (See drawing SD-SAGEON2.L2X for notes)
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.
