Power supply CP-E 24/20.0 Primary switch mode power supply Data sheet Features Rated output voltage 24 V DC Output voltage adjustable via frontface rotary potentiometer OUTPUT Adj Rated output current 20 A Rated output power 480 W Wide range input 115230 V AC (90264 V AC, 120375 V DC) Typical efficiency of 89 % Low power dissipation and low heating Free convection cooling (no forced cooling with ventilators) Ambient temperature range during operation 40...+70 C Opencircuit, overload and shortcircuit stable Integrated input fuse Redundancy unit CPA RU offering true redundancy, available as accessory Signalling contact1314 (solid state) for output voltage OK a OUTPUT L+, L+, L, L: LEDs for status indication terminals output b INPUT L, N, PE: Approvals terminals input A UL 508, CAN/CSA C22.2 No.14 Approval refers to rated input voltage U in H ANSI/ISA12.12 (Class I, Div. 2, c 1314: terminals hazardous locations) signalling contact H UL 60950, CAN/CSA C22.2 No.60950 Approval refers to rated input voltage U in D GOST d OUTPUT OK: green LED output voltage OK E CCC Approval refers to rated input voltage U in e OUTPUT LOW: red LED Marks output voltage too low a CE b CTick f OUTPUT Adj: potentiometer adjustment of the output voltage Order data g single/parallel: Type Input voltage range Rated output voltage / Order code sliding switch current adjustment of single or parallel operation CPE 24/20.0 90264 V AC / 120 375 V DC 24 V DC / 20 A 1SVR 427 036 R0000 h Circuit diagram Order data Accessories Type Description Order code CPA RU Redundancy unit 1SVR 427 071 R0000 The CPA RU provides decoupling of two CPE power supply units m 40 V and M 5 A. Application The primary switch mode power supply offers two voltage input ranges. This enables the supply with AC or DC. Furthermore it is equipped with two generous capacitors, which ensure mains buffering of at least 30 ms (at 230 V AC). That is why the devices can be used worldwide also in high fluctuating networks and batterypowered plants. ABB 1 2CDC 271 027 F0008Power supply CP-E 24/20.0 Primary switch mode power supply Data sheet Operating mode By means of the potentiometer OUTPUT Adj the output voltage can be adjusted within a range of 22.5 to 28.5 V DC. Thus, the power supply can be optimally adapted to the application, e.g. compensating the voltage drop caused by a long line length. The green LED OUTPUT OK is lightening during proper operation. The red LED OUTPUT LOW is lightening when the output voltage is too low. Switch single/parallel for selection of single or parallel operation. Signalling contact 1314 (max. 60 V DC / 0.3 A) is ON when the output voltage is more than 75 %. Installation Mounting The switch mode power supply can be snapped on a DIN rail according to IEC/EN 60715 as shown in the accompanying picture. For that the device is set with its mounting rail slide on the upper edge of the mounting rail and locked by lifting it downwards. Demounting Remove the switch mode power supply as shown in the accompanying picture. For that the latching lever is pulled downwards by means of the screwdriver. Alternatively you can press the unlock button to release the device. Then in both cases the device can be unhinged from the mounting rail edge and removed. Mounting position The devices have to be mounted horizontally with the input terminals on the bottom. In or der to ensure a suffi cient convection, the minimum distance to other modules should not be less than 25 mm in vertical and horizontal direction. ABB 2 2CDC 272 021 F0b08 2CDC 272 018 F0b08 2CDC 272 017 F0b08