Super Systems 7SL User Manual

Page 23

Advertising
background image

2 3

ERROR MESSAGES

Overrange, Underrange and
Sensor Break Indications
This device detects process variable faults
(OVERRANGE, UNDERRANGE OR SENSOR BREAK).
When the process variable exceeds the span limits
established by configuration parameter r1 an
OVERRANGE condition will appear as:

An UNDERRANGE condition will appear as:

A sensor break is signaled as "OPEN”. On the mA/V
input, a sensor break can be detected only when the
range selected has a zero elevation (4/20 mA, 12/60 mV,
1/5 V or 2/10 V.)

On the RTD input "shrt" is signalled when input resis-
tance is less than 15

(short circuit sensor detection).

This device detects reference junction errors or errors on
the internal autozero measurement. When a fault is
detected the output goes OFF and the alarm assumes an
upscale/downscale reading in accordance with r7.

Error Messages
On powerup, the instrument performs a self-diagnostic
test. When an error is detected, the lower display shows
an "Er" indication while the upper display shows the code
of the detected error.

Error List
100

Error in EEPROM writing

150

Short circuit on CPU's outputs

200

Error on "protect register" in EEPROM

XXX

Configuration parameter error.

301

Error on calibration of selected input.

307

rj input calibration error.

400

Error on operative parameter.

500

Error on autozero measurement.

502

Error on reference junction measurement.

510

Error during calibration procedure.

Dealing with Error Messages
1) When a configuration parameter error is detected,

repeat the configuration procedure of that specific
parameter.

2) If an error 400 is detected, simultaneously press

the and keys to load the default parameters
and then repeat the control parameter setup.

3) For all other errors, contact your

Service Representative.

7sl-4-00.p65

9/17/02, 2:42 PM

23

Advertising