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DIRECTED ENERGY, INC.
PDG-2515/2520
Digital Delay and Pulse Generator
OPERATING MANUAL
www.directedenergy.com
THE PULSE OF THE FUTURE
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THE PULSE OF THE FUTURE
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PDG-2515/2520 Operating Manual Table of Contents Table of Contents...................................................................................................i List of Figures ...................................................................................................... iv Safety Warning .....................................................................................................v PDG-2515 Operating Manual ..............................................................
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PDG-2515/2520 Operating Manual Operating Tips...................................................................................................8 Power-Up Procedures .......................................................................................9 FRONT PANEL OPERATING INSTRUCTIONS ...............................................9 THE CHANNEL MENU..................................................................................9 THE OUTPUT MENU ........................................
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PDG-2515/2520 Operating Manual Cover Removal............................................................................................24 General Operating Precautions ...................................................................24 Servicing Safety Summary ..............................................................................25 PREPARATION FOR USE..............................................................................25 General...........................................
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PDG-2515/2520 Operating Manual List of Figures Figure 1 Logic & Polarity Functional Diagram.....................................................11 Figure 2 Timing Diagram ....................................................................................12 Figure 3 Example 1: Pulse Generator Mode.......................................................13 Figure 4 Example 2: Pulse Generator Mode.......................................................13 Figure 5 Example: Pulse Count Mode .....
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PDG-2515/2520 Operating Manual Safety Warning SAFE OPERATING PROCEDURES AND PROPER USE OF THE EQUIPMENT ARE THE RESPONSIBILITY OF THE USER OF THIS SYSTEM. Directed Energy, Inc. (DEI) provides information on its products and associated hazards, but it assumes no responsibility for the after sale operation and safety practices. Users are responsible for reading and understanding all safety precautions listed in this manual prior to operation of the equipment. There are no user serviceable
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PDG-2515/2520 Operating Manual PDG-2515 Operating Manual Quick Start Guide This quick-start guide provides a step-by-step guide to manually operating the PDG-2515. Please refer to the appropriate sections of the manual for additional instructions and guidelines. The SAFETY warnings in the manual must be read and understood prior to operating the PDG-2515. What’s In The Box? 1ea. PDG-2515 Digital Delay & Pulse Generator 1ea. Power Cord 2ea. 50 Ohm Coaxial Output Cable 1ea. Operating Ma
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PDG-2515/2520 Operating Manual Output Button The output button enables/disables the pulse output. Menu Button This button is for navigating the PDG-2515 menus. Enter Button Used for variables that will be permanently stored in the unit or require setup times internal to the PDG-2515. When a question mark appears after the variable, the enter button will “confirm” or in some cases save that particular setting. Up Arrow Button The UP ARROW button allows the user to go up in any partic
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PDG-2515/2520 Operating Manual X10 button once to increment it to 250ns, then rotate the encoder wheel to increase it to 300ns. At this point, pressing the X10 button again would increase the delay to 3.00us, pressing it again increments it to 30.0us, etc. An additional function is that if it is held while changing ANY frequency value, after multiplying the value by a factor of ten, if the encoder is moved it will increase/decrease at a much faster rate. This makes the switching frequ
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PDG-2515/2520 Operating Manual The PDG-2515 accepts input voltages of 90-264VAC, 47-63Hz. Example Setup The default setup is 1 kHz, with zero delay and 100 us pulse on both channels. The pulse in not inverted and the pulse mode is in continuous pulse generation mode which means that pulse count is not available. By pressing the OUTPUT button on the front panel you will see these pulses on the respective outputs. Turning the encoder with the pulses enabled and the unit will sweep the fr
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PDG-2515/2520 Operating Manual Product Overview Description The PDG-2515 is a two channel digital delay/pulse generator. Each channel offers independently adjustable delay and width, with 25 nanosecond resolution. Up to five user configurations may be stored in internal non-volatile memory, and recalled through the easy to understand front panel. Functions & Features Delay And Width and Each channel provides independently adjustable Duty Cycle. delay and width, with 25ns resolution. T
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PDG-2515/2520 Operating Manual Specifications PARAMETER Value OUTPUTS Output Channels Two (2) outputs, each with independent digitally controlled delay and pulse width Delay Range 0 to 99.9 Seconds Pulse Width Range 25 Nanoseconds to 99.9 Seconds Delay And Pulse Width Resolution 25 Nanoseconds below 1 Microsecond 50 Nanoseconds from 1 Microsecond to 10 Microseconds 3 Digits Above 10 Microseconds Accuracy (Delay and Pulse Width) ±2% Time Base 120MHz Frequency Synthesizer st Delay
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PDG-2515/2520 Operating Manual Applications The versatile functionality of the PDG-2515 makes it ideal for the needs of numerous applications as a small bench top instrument. The delay resolution and width resolution of each channel allow a unique ability to offset control signals, coupled with ability to logically manipulate the outputs together to form gate signals or specific waveforms make automation of testing and control an easier process. Safety Normal use of test equipment exp
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PDG-2515/2520 Operating Manual equipment when making connections in high voltage or high current circuits. Discharge high voltage capacitors after removing power. Servicing Safety Summary DEI strongly recommends that all repairs and adjustments be performed by factory qualified personnel. DEI will not be responsible for personal injury or damage to the pulse generator that occurs during repair by any party other than the factory. Any repairs, adjustments or modifications made by anyone
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PDG-2515/2520 Operating Manual change is accomplished by using the encoder while holding the 10X button down. Power-Up Procedures The unit should be powered up using the following procedures: Connect OUT 1 and/or OUT 2 to an appropriate load using 50 Ohm coaxial cable (See Section 6.0). Plug the AC power cord into the PDG-2515, and into an appropriate AC socket. Turn on the PDG-2515 by pressing the power button on the rear of the unit located above the power entry . Configure the uni
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PDG-2515/2520 Operating Manual the contrast settings of the unit. The operating modes will be discussed in more detail in section 9.0. Enabling and disabling a channel can also happen on the fly in pulse generation and Divide By N modes. In pulse count mode this needs to be set before hand so the unit does not sit in an unknown state if it has not finished it’s count set, therefore, the unit will not allow it to be changed while pulsing. In Burst mode, disabling the channel is not avail
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PDG-2515/2520 Operating Manual Figure 1 Logic & Polarity Functional Diagram THE CONFIGS MENU The CONFIGS MENU allows the user to save or load up to 5 different configurations. After selecting the appropriate configuration to either load or save (1 through 5) hit the ENTER button and the configuration of the unit will be saved. If the user tries to load a configuration that has not been saved yet, the unit will send an error message of “Not Valid Config” and nothing will be loaded. If
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PDG-2515/2520 Operating Manual Figure 2 Timing Diagram Please note that in external trigger mode, all outputs are delayed from the leading edge of the external trigger signal. Pulse Generator Mode In Pulse Generator Mode, the PDG-2515 generates pulses at the specified frequency denoted in the CHANNEL MENU (changing the frequency on either channel will change the frequency on both channels simultaneously – the frequencies are not independent in this mode). If externally triggered, t
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PDG-2515/2520 Operating Manual Figure 3 Example 1: Pulse Generator Mode Figure 4 Example 2: Pulse Generator Mode Pulse Count Mode In Pulse Count Mode, the PDG-2515 generates a series of pulses, the number of which is set by the PULSE CT variables on the respective channel menu. When the number of pulses output on an output channel equals the number set, the output of that channel is automatically disabled and the output LED will reflect this Page 13 MNPDG2515-2520R0.doc © 2004 D
