Keithley 2268-80-10 Power Supply Keithley DC Power Supply, 80V, 10.5A, 850WFor large power systems that require multiple power supplies, up to 30 Series 2268 supplies can be controlled through a single interface by linking all the supplies together through their RS-485 interfaces. That allows controlling all the supplies through a master unit, which can use any of the five standard PC interfaces. This feature makes easy to manage multiple power supplies in a single system. Additionally to the main output power, 2268-80-10 offers two auxiliary outputs, 15V output and a 5V output, for signaling and control tasks, such as to supply signals to a device handler, or a test fixture control input. These auxiliary outputs can also drive external control relays. For test systems that require a few control signals or relay control, these outputs can eliminate the need for another power supply or data I/O card. Expand Voltage or Cur Capacity for Higher Output Requirements For test applications that require a higher voltage or cur output than a single supply can produce, up to two Series 2268 power supplies can be connected in series or up to four of them connected in parallel to produce the required output. Using the analog control lines, the supplies can be arranged in a master-slave configuration. The safety settings for the master supply control the complete configuration of supplies so that all supplies are protected. When an application requires a bipolar output, two Series 2268 power supplies can be linked with the low terminal of one supply connected to the high terminal of the second one. This connection can be tied to the common of the bipolar load; one supply produces a positive output and the second supply effectively produces a negative output.The Keithley DC 2268-80-10 provides one set of parameters designed to protect the load from damage and another set that protects the supplies themselves. For applications that require outputting voltages only within a narrow range, it supports setting both over-voltage and under-voltage shutdown levels. Over-cur protection prevents excess cur from damaging the load, the supply, or both. An over-temperature limit prevents excessively high temperatures that could damage the supply’s internal components. The Keithley 2268-80-10 includes a standard foldback function which, when enabled, will turn the output off if the load condition causes the supply to switch between the CV and CC control modes. Futhermore, it adds a programmable delay time to the foldback function to allow a time delay before the output is turned off. Thus, if the supply is powering a load with a high in-rush cur which is large enough to cause the supply to switch to the CC mode from the CV mode, the delay would prevent the foldback function from an unwanted shutdown of the output so that the load stays powered and reaches its steady-state cur level. If an external interlock circuitloses continuity, the hardware output interlock can be used to turn off a supply’s output. Input/output lines allow external shutdown control and provide an output on/off status. For test systems that integrate multiple Series 2268 supplies, loop protection allows any supply’s output to be shut down individually; there’s no need to shut down the whole system.Features and Specifications of the Keithley 2260B-80-10 Power Supply includes:

• Keithley 2268-80-10 - Datasheet (504 KB)