27
7 Error Messages
The following types of errors may occur:
•
Self-test errors
•
Calibration errors
•
Command errors
The first two types of errors are displayed on the voltage display as:
Er xx
, where
xx
is
a number. The command errors are sent through the RS232 interface.
7.1 Self-Test Errors
Er 01
: EEPROM does not respond
Er 02
: CV not high
Er 03
: CV not low
Er 04
: CC not high
Er 05:
CC not low
Er 06
: ADC does not respond
Er 07
:
ADC not ready
Er 08
: No reference voltage
Er 09
: ADC conversion error
Er 10
: ADC AVdd< 3.0V
Er 11
: ADC AVdd> 3.6V
Er 12
: Calibration constants checksum failed
7.2 Calibration Errors
Zero voltage calibration errors
Er 20
: CC not high
Er 21
: CV not low
Er 22
: DAC out of range
Er 23
: ADC out of range
Er 24:
ADC system calibration failed
Er 25
: DAC zero voltage constant checksum failed
Er 26
:
ADC zero voltage constant checksum failed
