Diagnostic Functions; Operating State Wir Off-Delay Outputs/Contacts - Zander Aachen SCB Serie Betriebsanleitung

15. Diagnostic functions

The SCB has several diagnostic options. In addition to a two-digit display, which shows
the currently parameterized delay time and configuration as well as error messages, three
status LEDs are available for the IO status display.
Table 3 explains the symbols of the status LEDs used in the following.
15.1 Operating state with Off-delay outputs/contacts
In the operating state, the current status of the SCB is shown on the display and the
LEDs.
1.
9 s
Y1
Y1
1. Power-On
After the supply voltage is applied, the SCB carries out a self-test (duration approx. 9 se-
conds). At the same time, each individual segment is controlled on the display, whereby
the display can be checked for possible errors.
TIP: Checking the display before re-parametrising avoids possible incorrect settings due
to display errors.
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Safety Time Control Device SCB
Status
Description of the status
LED
I11/I12: Low at input.
Out: Safety outputs not switched.
I11/I12: High at input.
Out: Safety outputs not switched.
Out: Time-delay of outputs is running.
Table2 - Symbol explanations Status-LED's
2. 3.
Y1
Abbildung 21: Display Anzeige im Betriebsmodus
4.
Y1 Y1
5. 6.
Y1