Rockwell Automation 937CU-AISTR-DC1 Strain Gauge Converter Installation Instructions - Manual (Page 31)

Bul. 937
C Strain Gauge Converter Installation Instructions
Alarm freeze and Hold on error
• By means of the Alarm freeze you ensure that the operating personnel notices if the trip value is
temporarily violated.
If Alarm freeze On has been selected, the new condition is maintained after switching the relay,
until the ESC key is pressed or the device is restarted. These actions reset the relay, unless the
trip value is still exceeded.
• The Hold on error function prevents the relay from de-energising in the case of a fault.
If Hold on error On has been selected, the condition of the relay is maintained in the case of a
fault , until the error message is cleared. Afterwards, the relay takes up its normal function again.
Fault indication
The following figure shows the menu levels following the Fault indication menu option. The menu
options of the lowest menu level are surrounded by a bold box.
If the Fault indication function is activated (On), use the OK key to get from the Fault indication menu
option to the Alarm freeze menu option. If you reactivate the Fault indication function, pressing the OK
key twice takes you directly to the Alarm freeze menu option.
A relay with the function Fault indication is energised in normal operation. If the device detects a
fault , the relay is de-energised.
Fault indication (On) —— Alarm freeze —— On
Off
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