Diagnostics / service
8.4 Diagnostics with MSS ES
Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02
265
Input
Status Symbol Meaning
Cross-circuit at input x Red A cross-circuit was detected at input x.
Start
Status Symbol Meaning
Start signal duration invalid Yellow Only with start type "Monitored start":
The start signal time monitoring element detected a violation.
Start condition not fulfilled Yellow is set if:
• A sensor test was not executed in the case of an active startup test
function
• A cross-circuit is present
• The value "1" is not present simultaneously at all available
(parameterized) function inputs (IN1, ...)
Messages for protective door
The monitoring function supports the following messages:
General
Status Symbol Meaning
Startup test required Yellow During the paramaterized startup test, this message is set after every
restart until the user actuates the connected sensor at least once.
Sequence condition not fulfilled Red The sequence condition was not fulfilled in accordance with the parameter
assignment.
Discrepancy condition violated Red is set if:
• The signal states at the inputs to be monitored vary after expiry of the
discrepancy time
• The signal states of all inputs to be monitored had not all previously
been reset simultaneously to the value "0" when they are set to "1"
Input
Status Symbol Meaning
Cross-circuit at input x Red A cross-circuit was detected at input x.