KEPCO RA 19-4C Quick Start Manual

Also see for RA 19-4C: Instruction manual

KEPCO RA 19-4C Quick Start Manual Manual pdf 1 page image

©2022, KEPCO, INC 1Data subject to change without notice 228-1671 REV 2KEPCO, INC.  131-38 SANFORD AVENUE  FLUSHING, NY. 11355 U.S.A. TEL (718) 461-7000 FAX (718) 767-1102www.kepcopower.com  email: hq@kepcopower.comQ U I C K S T A R T G U I D EKEPCO An ISO 9001 Company.RA 19-4CRack AdapterRA 19-4CRACK ADAPTERI — INTRODUCTIONSCOPE OF MANUAL. This Quick Start Guide coversinstallation and operation of the Kepco RA 19-4C RackAdapter for two common configurations. For the full capa-bilities and specifications of the RA 19-4C and to takeadvantage of the many choices and features not covered inthis Quick Start Guide, the user is urged to download thecomplete Operator’s Manual from the Kepco web site atwww.kepcopower.com/support/opmanls.htm#ra19-4c.DESCRIPTION. Kepco RA 19-4C rack adapters arespecifically designed for up to four 300W, 600W, 1200W/1500W HSF power supplies, both with -A suffix and olderlegacy models (non-A suffix).The rack adapter is user-configurable for parallel, series, orindependent power supply operation. Forced current shar-ing and OR’ing diodes for N+1 redundancy are built into theHSF power supplies. Redundant a-c inputs are provided todeliver independent source power to each power supply ina redundant pair. User-configurable keying can ensure thatonly the correct power supply can be installed in a keyedslot. Input/output connections between RA 19-4C and HSFpower supply are via HSF connectors that plug into corre-sponding connectors of the RA 19-4C. All connections aremade at the rear panel (see Figure 1).FIGURE 1. REAR PANEL CONNECTIONS, TYPICAL FOR EACH SLOTII — PRE-INSTALLATIONNOTE: Either local or remote sensing MUSTbe used except for HSF 1200W/1500W(legacy non -A suffix) models.DIP SWITCHES. The DIP switches (Figure 1) arearranged as follows: DIP 1 is for PS1 sense lines; DIP 2 isfor PS2 sense lines and for paralleling PS1 and PS2. DIP 3is for PS3 sense lines and for paralleling PS2 and PS3. DIP4 is for PS4 sense lines and for paralleling PS3 and PS4.Table 1 describes the function of each DIP switch position.INDEPENDENT OPERATION. The RA 19-4C rackadapter is shipped with the DIP switches of all slots config-ured for independent operation (see Figure 1) and localsensing.PARALLEL OPERATION. The most common use forthe RA 19-4C rack adapter is with two or more identicalHSF modules adjusted to the desired output voltage, con-nected in parallel to a single load with forced current shar-ing to increase current output, increase reliability and/orprovide redundancy. Only adjacent slots can be connectedin parallel using DIP switches.

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