IC693PWR322 Standard Power Supply, 24/48 VDC Input The IC693PWR322 is a 30 watt output power supply designed for 24 VDC or 48 VDC nominal inputs. It will accept an input voltage range from 18 VDC to 56 VDC. Although it is capable of maintaining all outputs within specifications with input voltages as low as 18 VDC, it will not start with initial input voltages of less than 21 VDC. This power supply provides the following outputs: +5 VDC output. +24 VDC Relay power output which provides power to circuits on Series 90-30 Output Relay modules. Isolated +24 VDC, which is used internally by some modules, can also be used to provide external power for 24 VDC Input modules. The load capacity for each output of this power supply is shown in the following table. Table 4-6. IC693PWR322 Power Supply Capacities Catalog Number Load Capacity Input Output Capacities (Voltage/Power ) IC693PWR322 30 Watts 24 or 48 VDC +5 VDC 15 watts +24 VDC Isolated 20 watts +24 VDC Relay 15 watts Total of all outputs combined cannot exceed 30 watts. SYSTEM STATUS INDICATORS a44854 + PWR OK RUN BATT BATT E R LITHIUM Y BACK UP BATTERY BATTERY CONNECTOR RS 485 COMPATIBLE SERIAL PORT CONNECTIONS FOR DC POWER SOURCE INTERNAL POWER SOURCE FOR MODULES REQUIRING 24VDC IC693PWR322 + GE Fanuc Series 90-30 PROGRAMMABLE STANDARD POWER SUPPLY CONTROLLER 24 VDC OUTPUT 0.8A MAX. INPUT 24/48 VDC 50 WATT PROGRAMMABLE CONTROLLER Figure 4-4. Series 90-30 24/48 VDC Input Power Supply - IC693PWR322 4 4-8 Series 90 30 PLC I/O Module Specifications July 2000 GFK 0898F Table 4-7. Specifications for IC693PWR322 Power Supply Nominal Rated Voltage Input Voltage Range Start Run 24 or 48 VDC 21 to 56 VDC 18 to 56 VDC Input Power 50 watts maximum at full load Inrush Current 4A peak, 100 ms maximum Output Power 5 VDC: 15 watts maximum 24 VDC Relay: 15 watts maximum 24 VDC Isolated: 20 watts maximum NOTE: 30 watts maximum total (all three outputs) Output Voltage 5 VDC: 5.0 VDC to 5.2 VDC (5.1 VDC nominal) 24 VDC Relay: 24 to 28 VDC 24 VDC Isolated: 21.5 VDC to 28 VDC Protective Limits Overvoltage: Overcurrent; 5 VDC output: 6.4 to 7 V 5 VDC output: 4 A maximum Holdup Time: 14 ms minimum Standards Refer to data sheet, GFK-0867B, or later version for product standards, and general specifications. Calculating Input Power Requirements for IC693PWR322 The following graph is a typical 24/48 VDC power supply efficiency curve. A basic procedure for determining efficiency of the 24/48 VDC power supply follows the figure. 5 10 15 25 30 AVERAGE INPUT POWER (WATTS) TOTAL OUTPUT POWER (WATTS) a44963 50 20 10 20 30 40 45W Figure 4-5. Typical Efficiency Curve for 24/48 VDC Power Supply Note Start-up surge at full load is 4 amps for 250 milliseconds (maximum). Series 90 30 Power Supplies 4 GFK 0898F Chapter 4 Series 90 30 Power Supplies 4-9 Input Power/Current Calculation Determine total output load from typical specifications listed for individual modules in Chapters 2 and 3. Use the graph to determine average input power. Divide the input power by the operating source voltage to determine the input current requirements. Use the lowest input voltage to determine the maximum input current. Allow for start-up surge current requirements. Allow margins (10% to 20%) for variations.