7Hardware and Software Fault Detection

Overview

If the CADD-Prizm®pump displays an error code, a hardware or software fault has been detected by the microprocessor, and the pump should be returned for servicing.

When hardware or software faults are detected by the microprocessor, pump operation stops and a continuous, audible alarm will be activated as well as the amber warning LED. An error message will be displayed. On the next power up, the error code will again be displayed with the software level (see illustration below). If the error detected was a data fault, the pump will be in Lock Level 2, and all other programmed functions will have default values. (See the pump’s Operator’s Manual for specific defaults.)

Error code

Pump model number

C A D D - P R I Z M

61XX

lec XXXXX

 

sn XXXXXXXX

0254-01X

625 XXXXX

XXXX-X

Terminal Serial number

Software revision level

 

 

Order of Error Code Events

1.There is a continuous two-tone audible alarm, a continuous amber indicator light, and the display will read

Error Detected

E(XXXXX)

NOTE:

“XXXXX” is a 5-digit code.

2.To silence the error code alarm, remove the battery.

3.At the next power-up, the last error code (lec) will be visible on the display. The microprocessor will also record an error code in the Event Log. The description “Error Detected” along with five digits will appear in the LCD in the Event Log. These five digits will remain in memory and will appear on the Event Log record until 500 data writes have occurred or until the mode has been changed. (See “Testing Procedures” starting on page 23 of this manual for detailed instructions regarding the power-up check.) Thus, there is always a record of the last internal fault detected by the micropro- cessor.

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