DR-RDN20 20A Power Supply Redundancy Module Features : Suitable for redundant operation of 24V system Installed on DIN Rail TS35 / 7.5 or 15 Relay contact signal output and LED indicator for input failure alarm Cooling by free air convection 3 years warranty SPECIFICATION MODEL DR-RDN20 OUTPUT INPUT FUNCTION ENVIRONMENT REVERSE VOLTAGE (max.) 30V OUTPUT CURRENT (max.) 20A VOLTAGE DROP 0.5V LED INDICATORS Two green LEDs indicating each input is "OK or fail" INPUT VOLTAGE RANGE 21 ~ 28V NUMBER OF INPUTS Two INPUT CURRENT (max.) 20A per input INPUT VOLTAGE ALARM When input is > 20V( 5%) or < 30V( 5%) relay contacts RELAY CONTACT RATING (max.) 30VDC, 1A WORKING TEMP. -20 ~ +70 WORKING HUMIDITY 20 ~ 90% RH non condensing STORAGE TEMP., HUMIDITY -40 ~ +85 SAFETY & EMC (Note 2) WITHSTAND VOLTAGE Terminal-Chassis :0.5KVAC, Relay Contacts-Terminal :0.5KVAC ISOLATION RESISTANCE EMC EMISSION Terminal-Chassis :>100M Ohms / 500VDC / 25 / 70% RH Compliance to EN55022 (CISPR22) Class B, EN61000-3-2,-3 EMC IMMUNITY MTBF Compliance to EN61000-4-2,3,4,5,6,8,11, heavy industry level, criteria A 996.8Khrs min. MIL-HDBK-217F (25 ) 55.5*125.2*100mm (W*H*D) 0.5Kg; 20pcs/11Kg/1.29CUFT DIMENSION OTHERS , 10 ~ 95% RH 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes ; Mouning: Compliance to IEC60068-2-6 VIBRATION PACKING 1. All parameters NOT specially mentioned are measured at 24VDC input, rated load and 25 of ambient temperature. 2. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to EMI testing of component power supplies. (as available on http://www.meanwell.com) NOTE Typical Application Notes 2. 1+N Redundancy: Using more PSUs as the redundant units to increase the reliability 1. 1+1 Redundancy Using 1 more PSU as the redundant unit PSU PSU PSU PSU PSU PSU PSU PSU .............. Vin A Vin B DR-RDN20 Vin A Vin B DR-RDN20 Vout Vout Vin A Vin B DR-RDN20 DR-RDN20 Vout Vout Load Load 3. Single Use: Connecting only one PSU to one DR-RDN20 to reduce the stress of the diodes and hence increase the reliability PSU Vin A PSU Vin B Vin A Vin B DR-RDN20 Vout DR-RDN20 Vout Load File Name:DR-RDN20-SPEC 2011-06-17 DR-RDN20 20A Power Supply Redundancy Module Mechanical Specification Unit:mm 100 Case No.923C 125.2 55.5 1 2 3 4 5 6 LED TB1 TB2 1 2 3 4 Terminal Pin No. Assignment (TB1) 35 Pin No. 1 2 3,4 5 6 ADMISSIBLE DIN-RAIL:TS35/7.5 OR TS35/15 Assignment Vout+ VoutVinVin B+ Vin A+ Terminal Pin No. Assignment (TB2) Pin No. 1 2 3 4 Assignment Alarm B1 Alarm B2 Alarm A1 Alarm A2 Block Diagram Vout+ B2 RELAY B Vin/Vout- + Alarm B B1 Vin B+ A2 RELAY A + Alarm A A1 Vin A+ Derating Curve 100 80 LOAD (%) 60 40 20 -20 0 10 20 30 45 50 60 70 (VERTICAL) AMBIENT TEMPERATURE ( ) File Name:DR-RDN20-SPEC 2011-06-17