11
Service
Fault states of the MOVISAFE® CSB51A safety option
Manual – MOVISAFE
®
CSB51A Safety Option
40
11.3
Fault states of the MOVISAFE
®
CSB51A safety option
Fault states
of the
MOVISAFE
® CSB51A
safety
option
WARNING
A fault occurred at the MOVISAFE
®
CSB51A safety option and automatically restarts
in the following cases:
- The DC-24-V supply voltage was switched off and back on.
- The safety option was in standby state.
- Several device faults were acknowledged.
Severe or fatal injuries
•
To prevent the automatic restart in the aforementioned cases, the parameter
Er-
ror status after startup
(8703.240) must be parameterized to "Start inhibit". Start
inhibit must be acknowledged.
11.3.1
Error classes
The occurring faults of the safety option are divided into 5 different fault classes. De-
pending on the fault class, the response described in the following table is carried out.
Fault class
Response
Message.
Entry in fault memory, no further response.
Warning.
Entry in fault memory, no further response.
Output fault.
Entry in fault memory and safe state of the F‑DO_STO if
necessary.
System error.
Entry in fault memory and safe state of the F‑DO_STO.
Critical fault.
Entry in fault memory and safe state of the F‑DO_STO. No
safe communication.
Message
No error response is carried out in the case of a message. An entry is made in the
fault memory. In addition, the corresponding error code is transferred.
Warning
No error response is carried out in the case of a warning. An entry is made in the fault
memory. In addition, the corresponding error code is transferred.
A warning is information, e.g. about an error in the encoder system, which has no ef-
fect with regard to safety technology at the time of occurrence, but which can repres-
ent an error at a later time.
Output fault
System error
In the case of a system error, the F-DO_STO is switched to the safe state. In addition,
the drive safety function STO is executed without delay. The safety option is set to the
safe state.
The bits for the drive safety function STO and the fault are set to "1" in the F-protocol.
In addition, the corresponding error code is transferred for the system error that oc-
curred.
25931075/EN – 04/2019
