OPEN FRAME DC POWER SUPPLY COMPONENT POWER MODULE FOR N+1 DC POWER SYSTEM Thank you for purchasing a Samlex power supply product! MODEL: SEC-1024MPSB Samlex America Inc. 110-17 Fawcett Road Coquitlam, BC V3K 6V2 Canada Toll-Free 1-800-561-5885 INSTALLATION & OPERATING MANUAL SEC-1024MPSB_June2005 Please read this manual before operating your power supply.
Notes : Attach your original bill of sale here. • • • • PROVIDES N+1 REDUNDANCY (2 OR MORE RUNNING IN PARALLEL) EXPAND OUTPUT POWER BY ADDING POWER MODULES OPERATION STATUS L.E.D. REMOTE INDICATION OF OPERATION STATUS • OPEN FRAME CONSTRUCTION • 2 YEAR WARRANTY • TOLL FREE TECHNICAL SUPPORT Date purchased : __________________________ Place of purchase : ________________________ Purchase price : ___________________________ Serial number : ____________________________ 16.
2 YEAR Limited Warranty This product manufactured by Samlex America, Inc. (the “Warrantor”) is warranted to be free from defects in workmanship and materials under normal use and service. This warranty is in effect for 2 years from the date of purchase by the user (the “Purchaser”) If the defective product is within the warranty period, the Purchaser should contact the place of purchase to obtain a Return Authorization Number.
IMPORTANT SAFETY INSTRUCTIONS Please read before using your power supply. SPECIFICATIONS INPUT VOLTAGE RANGE OUTPUT VOLTAGE CAUTION! ALL ELECTRICAL INSTALLATIONS MUST MEET LOCAL AND NATIONAL WIRING CODES AND SHOULD BE PERFORMED BY A QUALIFIED ELECTRICIAN. 105 to 125 V AC, 60Hz (Pre-set) 28V DC Adjustment 26.8 to 28.5V DC OUTPUT VOLTAGE REGULATION 1% OUTPUT CURRENT CONTINUOUS 10A SURGE 11.
OUTPUT CONNECTION: b. Use additional appropriate DC radio frequency interference (RFI) power line filter immediately after the dc output of the power supply. Recommended: Corcom Inc.(www.cor.com ) “DA” / “DC” series c. Twist the positive and negative wires from the output of the power supply to the radio d. The DC side positive and negative outputs of these power supplies are isolated from the chassis.
DESCRIPTION: This is a component power supply module for Samlex N+1 DC power system series SEC-24xxBRM (SEC-2430BRM, SEC-2440BRM, SEC-2450BRM) It converts 120V , 60 Hz AC into tightly regulated 28 VDC at 10A continuous. Two or more of these modules can be operated in parallel with active current sharing. APPLICATIONS: This unit is designed for the following applications: A) As a component power supply module (PSM) in Samlex N+1 DC Power System Series SEC-24xxBRM.
The receiver may “hear” the power supply. A slowly moving, slightly buzzing carrier heard in the receiver may be caused by the antenna being too close. As with the transmitter related noise pick up, a loose coaxial connector or a broken or a missing ground may aggravate this problem. Normally these noises will be below the background or “band” noise. Increase the separation between the power supply and the receiving antenna. Use an outdoor antenna.
CONTROLS AND MONITORING: NO OUTPUT VOLTAGE, GREEN LED(s) CONNECTED TO LED1/LED2 ARE FLASHING OUTPUT VOLTAGE CONTROL: Potentiometer VR1 • • is a multi-turn potentiometer for fine adjustment of the output voltage. It is preset at 28V. It can adjust the output voltage from 26.8 to 28.5V • LED FOR MONITORING STATUS OF OPERATON: LED 1/ LED2 provide connection for LED for monitoring the status of operation. In the Samlex N+1 DC Power System series SEC-24XXBRM, one green L.E.D.
INSTALLATION AND OPERATION - AS COMPO- TROUBLE SHOOTING GREEN LED(S) CONNECTED TO LED 1/ LED 2 DOES NOT LIGHT UP • The module has become defective WHEN TWO OR MORE UNITS ARE OPERATING IN PARALLEL • The associated module has become defective. The unit will still operate normally as the remaining working module(s) will share a higher load. The unit will go into current limit and the output voltage will drop if the load drawn is more than the combined maximum rated output of the remaining module(s).
CAUTION! WHEN 2 OR MORE MODULES ARE OPERATED IN PARALLEL, THE OUTPUT VOLTAGE OF EACH MODULE SHOULD BE ADJUSTED TO THE SAME EXACT VALUE WITH THE HELP OF POTENTIOMETER VR1 ( See Figure 1 on page 4 ) PARALLEL OPERATION (Example: 5 Modules) PSM 1 PSM 2 1 1 —2 3 1. 2. 3. PSM 3 1 —2 3 PSM 4 —2 3 PSM 5 1 —2 3 1 —2 3 Female socket terminal of the daisy chain Male 2 pin terminal marked “Jump 1” on the Power Supply Module.
