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Summary of Contents for Flann Microwave 600 Series
- Page 1 CP2021 CONTROL PROCESSOR, AND 600 SERIES PROGRAMMABLE MICROWAVE INSTRUMENTS OPERATION AND MAINTENANCE MANUAL Version 1.6 October 2020 CP2021 Version 1.6 October 2020...
- Page 2 Flann Microwave CP2021 Control Processor CP2021 Version 1.6 October 2020...
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Page 3: Table Of Contents
Flann Microwave CP2021 Control Processor CONTENTS GENERAL INFORMATION ........................5 ............................. 5 ARRANTY ........................... 5 ESIGN HANGES ........................5 PECIFICATION HANGES ..............................5 EPAIRS REGULATORY INFORMATION ......................6 ......................6 ECLARATION OF ONFORMITY (WEEE) R ......... - Page 4 Flann Microwave CP2021 Control Processor Radio Frequency Specifications ....................... 53 Position Sensors ..........................54 Manual Readout Drums ........................54 Precision Stepper Motor ........................55 Valid Setting Values.......................... 55 Steps to Attenuation .......................... 55 Installation Notes ..........................56 ...
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Page 5: General Information
GENERAL INFORMATION Warranty Flann Microwave Ltd. warrants each product of its manufacture to be free from defects in material and workmanship. Our obligation under this warranty is limited to servicing or adjusting any products returned to our address for that purpose and to make good at our facility any part or parts thereof (power... -
Page 6: Regulatory Information
Where this product was supplied to a customer in the United Kingdom: When this product is at the end of its life, Flann Microwave will accept its return for safe disposal and recycling, if required by the Customer. Please contact Flann Microwave for full instructions before returning any WEEE. -
Page 7: Getting Started
Flann Microwave CP2021 Control Processor GETTING STARTED In addition to a brief product description, this chapter covers the following topics: Unpacking your instrument. Power considerations and connecting the Control Processor to the power supply. Connecting the Control Processor to Microwave Instruments. -
Page 8: Product Description
Flann Microwave CP2021 Control Processor Product Description Flann Programmable Attenuators and Phase Changers are well proven Precision Rotary Vane instruments driven by high-resolution stepper-motors, ensuring high accuracy and repeatability. The translation between the mechanical positioning of the instrument and the attenuation or phase shift is interpreted by the microprocessor based Control Processor. -
Page 9: Instrument Specifications
Locate the AC Line Input connector on the rear panel of the Control Processor (see Figure 2). Plug one end of the line cable supplied into this port and the other end into a suitable earthed supply. IEEE 488 FLANN MICROWAVE LTD GPIB BODMIN, CORNWALL, UK www.flann.com... -
Page 10: Environmental Considerations
Flann Microwave CP2021 Control Processor Environmental Considerations The Control Processor and Microwave Units are designed to operate in ‘non-hazardous’ areas. The environment in which the product is to be used is commercial, light industrial, either indoors or in a protected outdoor environment. -
Page 11: Commisioning The Control Processor
Installation Notes for each instrument type in Appendix A. Compatibility with Older Microwave Instruments The CP2021 can drive the microwave instruments shown in Table 2 when connected with a compatibility drive-cable, obtained from Flann Microwave. Microwave Instrument Model **610 Attenuator... -
Page 12: Connecting To The Ieee488 Bus (Gpib) Or Usb Interface
Flann Microwave CP2021 Control Processor GPIB/USB Status Unknown Configuration on Channel – X Please Select:- 1. NONE 2. **610 (square motor) 3. **611 4. **610 (round motor) 5. **660 Figure 3: Compatibility Menu Limitations on using the Compatibility Drive Cable The maximum cable length using this type of cable is 5 metres. -
Page 13: Usb Driver Installation
Flann Microwave CP2021 Control Processor USB Driver Installation The CP2021 Control Processor is supplied with a USB 2.0 communications interface which requires installation of the supplied driver on the computer. The driver supplied is compatible with Windows 2000, XP, XP 64bit, Vista, Vista 64bit and Windows 7. Windows XP installation is as follows:... -
Page 14: Firmware Upgrades
Firmware Upgrades Users will be able to upgrade to the latest version of the CP2021 firmware over the USB interface by following the instructions given in the Flann Microwave Ltd. website, www.flann.com A copy of the latest issue of this manual will also be available for download. -
Page 15: Quick Start
Flann Microwave CP2021 Control Processor QUICK START This section covers the following topics: Understanding the front panel Using the menus Setting the GPIB address Positioning the Microwave Instruments This section aims to make the user familiar with the front panel interface. Full details of the functions of the Control Processor can be found in the Reference Section of this manual (Page 20). - Page 16 Flann Microwave CP2021 Control Processor 1. Selecting the Active Field The Control Processor has three ‘Active Fields’ per channel. Arrows each side of a title on the Display indicates that that field is active. For example the first line of the display may show:- "...
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Page 17: Using The Menus
Flann Microwave CP2021 Control Processor Using the Menus The more specialised functions are contained within the menus. This section gives a brief outline of how to use the menus but does not go into the meaning of functions contained within. A working example is given on changing the GPIB address so that the unit can be connected to the GPIB without causing any conflicts. -
Page 18: Positioning The Microwave Instruments
Flann Microwave CP2021 Control Processor Positioning the Microwave Instruments This section will give a brief outline on how to position the instruments to a user requested setting. To make use of this section requires at least one Microwave Instrument to be connected to the CP. -
Page 19: System Description
Flann Microwave CP2021 Control Processor SYSTEM DESCRIPTION At the core of the Control Processor lies a 32-bit microcontroller that controls all aspects of its operation. The Microcontroller is programmed to derive the stepper motor waveforms and ramping profiles without the need for external logic. This enables complete configuration over the drive characteristics which, along with ‘dynamic intelligent firmware’... -
Page 20: Reference Sections
Flann Microwave CP2021 Control Processor REFERENCE SECTIONS System Functions and Features Power up Procedure When Power is supplied to the Control Processor it initially performs the built-in internal tests, these tests check the Central Processing Unit, the Arithmetic Logic Unit, the Time Processing Unit, the GPIB interface and the Keypad. - Page 21 Flann Microwave CP2021 Control Processor Microwave Instrument Reset Procedure The Microwave Instrument reset is performed to reference the instrument to the control electronics. The instrument reset procedure is performed whenever the following situations occur: Power On (only if power-on reset is not disabled).
- Page 22 Flann Microwave CP2021 Control Processor Steps Mode Menu level 1 GPIB/USB command: SSET (value) This is a Channel dependent Command This command places the Control Processor into steps machine mode. The display units will change from dB, or Degrees, to Steps. Any settings entered in the setting or increment fields will be used to position the motor by raw motor steps.
- Page 23 Flann Microwave CP2021 Control Processor Optic Sensor Menu level 3 GPIB/USB command: OPTO ON|OFF This is a Channel dependent Command. Its default condition is enabled. This function enables the user to override the normal checking of the reference sensor in the Microwave Instrument.
- Page 24 Flann Microwave CP2021 Control Processor Keypad Sounder Menu Level 8 Local Keypad Command only: ON|OFF This is a local Keypad Command. Its default value is enabled. This function allows the user to disable the sounder when performing data entry using the keypad. The Control Processor will continue to generate status and warning beeps during power-up and error detection.
- Page 25 Flann Microwave CP2021 Control Processor Preset Sub-Menu: Level 10 GPIB/USB Command: FACTDEF This function restores the factory defaults. Upon selection of this option the user is asked if they wish to continue with the pre-set. If the answer is No, the CP will exit the menu mode.
- Page 26 Flann Microwave CP2021 Control Processor Hot Swap Microwave Instruments This facility is only available with Programmable Instruments with 25-way connectors Microwave Instruments can be connected and removed at any time without the need for powering down the Control Processor, except when a compatibility drive cable is connected. See the Appendix C section on compatibility with older instruments.
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Page 27: Front Panel Control (Local)
Flann Microwave CP2021 Control Processor Front Panel Control (Local) This section covers the local or front panel control. It provides a reference to all the commands and functions available to the user via the local interface. This section covers the following topics: ... - Page 28 Flann Microwave CP2021 Control Processor Each section is divided into three subsections. These are termed ‘fields’. If an arrow highlights a field on each side (as ‘Increment A’ below), then this field is termed the Active Field. Field 1 Field 2...
- Page 29 Flann Microwave CP2021 Control Processor case. The stored increment is used to increment or decrement the Setting Field when the INC or DEC button is pressed. (out of range) symbol will be displayed if the user tries to increment or decrement the instrument by a value smaller then the minimum possible increment of that type of instrument.
- Page 30 Flann Microwave CP2021 Control Processor Key Layout and Functions Figure 8 shows the front panel keypad layout. CP2021 CONTROL PROCESSOR EXECUTE LOCAL RECALL MENU Figure 8: Keypad layout Numeric Data Entry Keys 0 to 9 , . , CL These keys are used to change the values of settings in the Active Field. They are used in the same way as the data entry keys on a calculator.
- Page 31 Flann Microwave CP2021 Control Processor LOCAL Key The local key returns the instrument to a local state. If the Control Processor has been programmed over the GPIB or USB the device will have entered a remote state, which will inhibit front panel (local) control.
- Page 32 Flann Microwave CP2021 Control Processor Understanding the Menus Pressing the MENU button on the front panel will cause the Control Processor to enter menu mode level 1. From here the more specialist functions of the Control Processor become available. Figure 9 shows the menu structure.
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Page 33: Remote Programming (Gpib Or Usb)
Flann Microwave CP2021 Control Processor Remote Programming (GPIB or USB) The CP2021 command set is totally compatible with that of the former CP2020. This section contains the information required to control the CP2021 over the GPIB (ANSI/IEEE Std 488) and USB interfaces, and covers the following topics: ... -
Page 34: Remote Control Front Panel Indicators
Flann Microwave CP2021 Control Processor Implementation of IEEE488.1, IEEE488.2, and USB The CP2021 may be addressed as a Talker and/or Listener and includes the following ANSI/IEEE Std 488 Interface Functions: SH1 Source Handshake Complete Capability AH1 Acceptor Handshake Complete Capability... -
Page 35: Hs488, High Speed Communications Protocol
Flann Microwave CP2021 Control Processor USB Restrictions 127 Maximum, using a tiered system structure. Number of Interconnected Devices 5 metres per device, 25 metres overall. Maximum Cable Length Serial. Protocol 480 Mbits/s. Data Rate Refer to the full specifications available from www.usb.org... -
Page 36: Status Reporting Structure
Flann Microwave CP2021 Control Processor Status Reporting Structure Figure 10 shows the status reporting structure of the CP2021. Tables 6 to 10 on the following page describe the status bits of each register. Status Request Enable (SRE) Status Byte Register... - Page 37 Flann Microwave CP2021 Control Processor Name Description Check Event Status Register D One of the enabled bits in the event status register D has been set Check Event Status Register C One of the enabled bits in the event status register C has been set...
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Page 38: Gpib/Usb Command Set
Flann Microwave CP2021 Control Processor GPIB/USB Command Set This section details the commands available over the GPIB or USB, and the valid operands that may accompany them. Notation OPTO {ON|OFF} Sets the opto checking on or off Query: Valid, returns 1 or 0... - Page 39 Flann Microwave CP2021 Control Processor GPIB/USB Device Commands ADDRSET value (GPIB only) Changes the GPIB primary address to value Query: Valid, returns the GPIB address FP equivalent: Under menu level 6, GPIB ADDRESS 0 to 30, default 4. The address cannot be set outside this range. The GPIB address Value change will take place upon parsing the command.
- Page 40 Flann Microwave CP2021 Control Processor ESRC? Request the value of the ESRC register Query: Valid, returns the Event Status Register C value, a value from 0 to 255 FP equivalent: None available ESRD? Request the value of the ESRD register...
- Page 41 Flann Microwave CP2021 Control Processor MODE? Outputs the current operating mode Query: Valid, returns either 0 for VALUE MODE or 1 for STEPS MODE FP equivalent: Indicated by the units on the display NORML (GPIB only) Returns the Control Processor to the default command set if a custom command set has been programmed...
- Page 42 Flann Microwave CP2021 Control Processor SSET [value] Switches to Steps mode and sets the Microwave Instrument to value Query: Valid, returns number of steps from reference FP equivalent: Select STEPS from Menu level 1 -150 to 8574 for an attenuator, -18000 to 18000 for a phase changer...
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Page 43: Gpib/Usb Command Summary
Flann Microwave CP2021 Control Processor GPIB/USB Command Summary Command Suffix Action Query Instrument Commands CHAN Select channel A CHAN Select channel B Increase setting by stored increment Decrease setting by stored increment VSET Value Switches to value mode and sets to value ... -
Page 44: Ieee 488.2 And Usb 2.0 Common Commands
IEEE 488.2 and USB 2.0 Common Commands Command Function *IDN? Returns the identity string of the Control Processor e.g. FLANN MICROWAVE,CP2021,0,V1.0 *RST Performs a Device Reset. *TST? Executes an internal self-test and returns the test result (0 = pass, >0 = fail). -
Page 45: Programmable Command Set - Gpib Only
Flann Microwave CP2021 Control Processor Programmable Command Set – GPIB only The Control Processor is able to accept a command to change the default names for some of the Instrument Commands. For example the default commands for changing the active channel are CHANA or CHANB, if this is not suitable it can easily be changed to say SAT A or SAT B. - Page 46 Flann Microwave CP2021 Control Processor Programmable Command Set (Continued) When the program message unit separators have been turned off, the CP2021 will accept the ‘S’ command that was used in the CP91/92 command set. This will allow the Control Processor to accept commands such as ‘AV43S’...
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Page 47: Error Codes And Messages
Flann Microwave CP2021 Control Processor ERROR CODES AND MESSAGES To assist in the detection of equipment malfunction, the Control Processor generates various error codes and messages to enable the user to identify the cause of failure. The Error Message is displayed on the front panel and, if relevant, in the Event Status Registers. -
Page 48: Operational Errors
Flann Microwave CP2021 Control Processor Operational Errors WARNING – EEPROM corrupt. Stored Values Will be Lost. EXECUTE TO CONTINUE This error indicates that all user programmed set-up information will be lost as the Control Processor re-initialises the Non-volatile EEPROM area. Possible causes of this error could be switching the unit off during motor positioning, or some other fatal error that causes the Control Processor to shut down or re-boot without warning. -
Page 49: Error Log Errors
Flann Microwave CP2021 Control Processor Error Log Errors The following lists the descriptions of errors that may be found in the error log. There is no need to return the unit for service if errors exist in the log. Only if the errors are repetitive and causing operational failures should the unit be returned. -
Page 50: Instrument Errors
Flann Microwave CP2021 Control Processor Instrument Errors ERROR #1 : CHANNEL (A or B) INSTRUMENT ERROR PRESS EXECUTE TO RESET THIS CHANNEL Error 1 can only occur during a Microwave Unit Reset. Error 1 will be generated if Phase 1 of the Microwave Unit Reset ends without detection of the Maximum signal. - Page 51 Flann Microwave CP2021 Control Processor ERROR #3 : CHANNEL (A or B) INSTRUMENT ERROR PRESS EXECUTE TO RESET THIS CHANNEL Error 3 can only occur during a Microwave Unit Reset. Error 3 will be generated if Phase 3 of the Microwave Unit Reset ends with failure to detect the Optic Reference signal.
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Page 52: Instrument Self-Test Errors
Flann Microwave CP2021 Control Processor ERROR #5 : CHANNEL (A or B) INSTRUMENT ERROR PRESS EXECUTE TO RESET THIS CHANNEL Error 5 can only occur during Microwave Unit Repositioning. Error 5 will be generated if the instrument is instructed to set to HIGH ATTENUATION, or the... -
Page 53: Appendix A - Programmable Instruments
Flann Microwave CP2021 Control Processor Appendix A – Programmable Instruments Programmable Rotary Vane Attenuators Each Programmable Rotary Vane Attenuator (PRVA) has three constituent parts Microwave Rotary Attenuator Position Sensors Precision Stepper Motor Microwave Vane Rotary Attenuator Each attenuator consists of two low-SWR rectangular-to-circular transitions and a rotating circular waveguide centre-section. -
Page 54: Position Sensors
Flann Microwave CP2021 Control Processor 0dB to 60dB Standard Attenuation Range: *Transition Time (full range): 1.1 seconds approx. – see note* 0.01 from 0-21dB Minimum dB Increments 0.02 from 21-30 dB 0.05 from 30-48 dB 0.1 from 48-60 dB 1% or 0.01dB whichever is the greater. -
Page 55: Precision Stepper Motor
Flann Microwave CP2021 Control Processor Precision Stepper Motor The attenuator is fitted with a five-phase stepper motor giving precisely repeatable steps without gearing. Individual step accuracy is approximately +/- 3 minutes of arc and errors are not cumulative. The motor output shaft is coupled through a backlash-free flexible joint to a reduction gear unit and the waveguide centre section. -
Page 56: Installation Notes
CP2021 Control Processor Installation Notes The Flann Microwave Programmable Attenuators are very high precision instruments whose accuracy can be impaired by careless handling and installation. Especially robust units can be provided to special order. All models are provided with M6 threaded fixing holes in their base-plates. -
Page 57: Programmable Rotary Vane Phase Changer
Flann Microwave CP2021 Control Processor Programmable Rotary Vane Phase Changer A Programmable Rotary Vane Phase Changer has three constituent parts: Microwave Phase changer Position Sensors Precision Stepper Motor Microwave Rotary Phase Changer The Programmable Phase Changer units incorporate an orthodox Rotary Vane Phase Changer circular centre section which is driven, via reduced gearing, by a precision stepper motor. -
Page 58: Precision Stepper Motor
Flann Microwave CP2021 Control Processor Precision Stepper Motor The Phase Changer is fitted with a five-phase stepper motor giving precisely repeatable steps without gearing. Individual step accuracy is approximately +/- 3 minutes of arc and errors are not cumulative. The motor output shaft is coupled through a backlash-free flexible joint to a reduction gear unit and the waveguide centre section. -
Page 59: Valid Setting Values
The relationship between steps from reference and phase change is 0.2 degrees phase change per step. Installation Notes The Flann Microwave Programmable Rotary Vane Phase Changers are very high precision instruments whose accuracy can be impaired by careless handling and installation. Especially robust units can be provided to special order. -
Page 60: Appendix B - Service
Flann Microwave CP2021 Control Processor Appendix B – Service Fault Finding CONTROL PROCESSOR FAULT FLOW CHART START - CP fails to initialize IS THE LCD NO LOGIC 5V BACKLIGHT LIT? SUPPLY CHECK : FUSES DOES THE LCD HAVE CHECK: PSU VOLTAGES... - Page 61 Flann Microwave CP2021 Control Processor CONTROL PROCESSOR FAULT FLOW CHART – CP Drive Problems START DOES EACH INSTRUMENT INITIALISE WITHOUT ERRORS? DOES THE INSTRUMENT SOUND ROUGH OR NOT DRIVE AT ALL? DOES THE DRIVE SOUND SEE ERROR MESSAGE ROUGH? SECTION ON PAGE 47...
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Page 62: Removing The Covers
Flann Microwave CP2021 Control Processor Removing the Covers OBSERVE FULL ANTI-STATIC PRECAUTIONS AT ALL TIMES Switch off the Control Processor and disconnect the Line Supply, GPIB cable and Drive cables from the rear panel. Remove the handles and rear corner supports (two screws in each). Remove the four screws and earth-stud nut that secure the rear over-panel, as shown below, and carefully ease the panel off. -
Page 63: Checking The Holding Supply
Flann Microwave CP2021 Control Processor Checking the Holding Supply Remove the covers of the Control Processor as described above. The holding supply is derived from the Primary Holding Supply (Pin 8 on J1) via a constant current generator. To check the output of the constant current generator (i.e. -
Page 64: Drive Cable Connections
Flann Microwave CP2021 Control Processor the Zener diode is open circuit and must be replaced. If the maximum voltage seen is approximately 32V then the Zener diode has become short circuit and must be replaced. To check Channel B, measure the voltage on the tab of Q6. -
Page 65: Appendix C - Compatibility Issues
Flann Microwave CP2021 Control Processor Appendix C – Compatibility Issues Command Set (GPIB only) The CP2021 will emulate the CP92, CP91 and CP82 range of control processors either by sending the LEARN string over the GPIB (LEARN_A_B_+_-_V_I_SSET_R_PMUS OFF), or by sending the CPEMU command. -
Page 66: Command Set (Continued)
Flann Microwave CP2021 Control Processor Command Set (Continued) There are, however, a number of limitations in this emulation and these must be evaluated before using the CP2021 in a CP92/91/82 application. The following commands are available in the CP92/91/82, but are not supported by the CP2021 in compatibility mode or have different command names. -
Page 67: Instrument Compatibility
Flann Microwave CP2021 Control Processor Instrument Compatibility The CP2021 firmware is dynamic, it is self-configuring, dependent upon the type of Microwave Instrument connected at its ports. To do this, all **620, **621, and **670 series of programmable instruments have a built-in identifier. -
Page 68: Front Panel Selection
Flann Microwave CP2021 Control Processor Front Panel Selection To select the required model number press either 1, 2, 3, 4 or 5 on the numeric key pad, a terminator is not required. A second menu will be displayed to allow the user to validate the selection. Press EXECUTE to confirm the selection or CL to return the display to the previous menu for re-selection.
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