Agilent Technologies 6628A Error Codes and Messages, Power-On Self Test Messages Error Responses

D

Error Codes and Messages

Introduction

This appendix describes the GP-IB error codes that can be readback to the controller and the error messages that can be displayed on the power supply’s front panel. A brief explanation of each code and message is also given. The error codes and/or messages fall into three categories: Power-on Self Test Messages, responses to the ERR? query, and responses to the TEST? query.

Power-On Self Test Messages

The applicable message listed in Table D-1 is displayed on the supply’s front panel if the corresponding function has failed the power-on self test. No error code numbers can be returned for these errors. If any of these error messages appear, refer to the Troubleshooting section in the Service Manual.

Error Responses

Table D-2 describes the error codes and messages that can be generated for various programming, calibration, and hardware errors. The error codes can be read back over the GP-IB in response to the ERR? query. The applicable error message is displayed on the supply’s front panel when the ERR key is pressed. Sending the ERR? or pressing the ERR key clears the error.

Test Responses

Table D-3 describes the codes that can be read back over the GP-IB in response to the TEST? query. The TEST? query initiates a self test of the supply.

Message

TIMER FAILED 8291 FAILED

CV DAC CH < ch >

CCDAC CH < ch > OV DAC CH < ch > FUSE CH < ch > HDW ERR CH < ch >

Table D-1. Power-On Self Test Error Messages

Explanation

The timer on the GP-IB board failed.

GP-IB control chip on the GP-IB board failed.

The voltage DAC on the specified output board failed. The current DAC on the specified output board failed. The overvoltage DAC on the specified output board failed. The return fuse on the specified output board is opened. The specified output board is down (no output).

Table D-2. ERROR Responses

Error Code

(ERR? query)

Message

(ERR key)

Explanation

0

NO ERROR

Indicates there are no errors.

1

INVALID CHAR

You sent the supply a character it did not recognize.

2

INVALID NUM

The format of your number is incorrect. Check syntax (see Chapter 5).

Error Codes and Messages 117