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Istruzioni per l'uso Agilent Technologies, Modello 66001A

Produttore : Agilent Technologies
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File Nome : 5959-3386.pdf
Lingua di insegnamento: en
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The module function switch described in "Chapter 2 - Installation" allows you to enable or disable the RI input and, when enabled, to specify RI as either latching or nonlatching. If the module function switch is set to enable RI, then the input signal will disable the power module output. If the function switch is also set to RI nonlatching, then removing the signal from the INH input restores the power module output. If the function switch is set to RI latching, an RI status bit is latched and the power module remains disabled after the input signal is removed. The RI status bit is removed either by reading the Status Questionable Event register (STAT: QUES?) or by clearing it (*CLS). See the Programming Guide for specifics. The detected RI bit can be used to generate a DFI signal that appears at the mainframe FLT output. This signal, in turn, can be wired to the RI inputs of other power modules to also disable their outputs (see the wiring diagram in Chapter 3 of the mainframe Installation Guide). DFI (Discrete Fault Indicator) Output When the DFI function is enabled (OUTP:DFI ON), you can program the Status Subsystem to cause any status condition (including RI) to generate a DFI output, which appears as a TTL low-true signal at the mainframe digital connector FLT output. See "Chapter 4 - Status Reporting" in the Programming Guide for details of programming the Status Subsystem. Table 4-6. DFI Output Commands Command Function OUTP:DFI ON OUTP:DFI OFF OUTP: DFI: SOUR LINK OUTP: DFI: LINK Enables the DFI function. Disables the DFI function. Specifies the source for DFI events. The only source is LINK. Specifies what power module status events are linked to the DFI function. Table 3-1 in the Programming Guide identifies all the DFI link parameters. Only one parameter may be specified for OUTP: DFI: LINK, such as OUTP: DFI: LINK CC. However, you can specify entire status groups by specifying a summary bit. For example, OUTP: DFI: LINK QUES specifies the Questionable Status summary bit, which is the logical OR of OV, OC, OT, RI, and UNR. The default link parameter SUM3 is the logical OR of the QUES, OPER, and ESB summary bits. This gives DFI access to all three status register groups (see "Chapter 4 - Status Reporting" in the Programming Guide for more information). Changing The Power On State Switch 6 of the module function switches (see "Chapter 2 - Installation") determines the state of the power module when you turn it on. With the switch in the factory-default position (1), the module turns on in the reset (*RST) state. You will find the parameters for this state listed under the *RST command in "Chapter 3 - Language Dictionary" of the Programming Guide. If you store your own parameters in location 0 (*SAV 0), and set the switch to 0, then the module will assume that state when you turn it on. Note The *RST state is a safe turn-on state that should not be replaced without careful consideration. 34 Basic Power Module Commands A Calibration Introduction The power module may be calibrated either over the GPIB from a controller or from an Agilent 66001A Modular Power System keyboard. Instructions are included for either method. The procedures given here apply to all Series 66l0xA Power Modules. Note The Agilent 66000A mainframe does not require calibration. Enabling Or Disabling The Calibration Function There are two ways of controlling access to the calibration function. One is by hardware and the other is with software. Hardware Control The CAL positions of the power module function switch (see Table 2-1 in "Chapter 2 Installation") allows hardware control over the calibration function. The factory-default setting is for normal calibration. Setting the switches to the Inhibit calibration position prevents any calibration from being performed. Software Control The password parameter of the CAL: STAT command allows software control over the calibration function. The standard factory password is the module model number (for example, 66102 for the Agilent 66102A). By changing the password, you can either restrict or allow unlimited access to the calibration function (see "Changing the Calibration Password"). Changing The Calibration Password You can change the password only when the module is in the calibration mode (which requires you to know the present password). To change the password from 66102 to 81591, send the following commands: CAL:STAT ON, 66102 CAL:PASS 81591 If you change the password to 0, then all password protection is removed. The Calibration Subsystem then will accept the CAL: STAT ON command without a password. Performing a Calibration Perform the procedures in the order given. The assumed password is 66102; use your actual password in the procedures. Important These instructions do not include verification procedures. If you need to perform verification as part of your calibration procedure, refer to the Series Agilent 66I0xA Service Manual. Calibration 35 Equipment Required The...


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