UG6951 / UG6952 / UG6954/ UG6955 / UG6956 / UG6957
SAFEMASTER PRO fieldbus modules
0265998 09.05.2017 LA 822P
5
/
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DIAGNOSTICS
Each input and safety output is associated with a relative diagnostic code.
When the I/O is connected correctly the diagnostic code is OK and is not exported to the fieldbus;
if there is a problem on the I/O, the system exports 2 bytes to the fieldbus with:
-
the index of the I/O in question
-
the related diagnostic code
1. Byte: "I/O index"
This field indicates the number used to identify the I/O with a diagnostic code other than OK.
Possible values for this field are shown in Table 2.
TYPE OF SIGNAL
I/O INDEX
Input
1-128
Output
192-255
Table
2
2. Byte: "Diagnostic code"
The "Diagnostic code" field indicates the diagnostics for the I/O. Possible values for this field are shown in the
following tables.
Inputs
Input di ag nos ti c s
1 2 8 (0 x8 0 )
Input diagnostics OK
1
Not in initial position
Both switches have to go to rest condition
2
Concurrent failed
Both switches have to change state simultaneously
3
Concurrent failed hand1
Wrong connection on one side of a two-hands switch
4
Concurrent failed hand2
Wrong connection on one side of a two-hands switch
7
invalid switch position
The selector can't have more than one input set
8
Switch not connected
The selector can't have any input set
10 (0x0A)
OUT_TEST error
OUT_TEST failure on this input
11 (0x0B)
Second input defective
Redundancy check failed on input
12
OUT_TEST diagnostics OK
13
Output connected to other inputs
Test output not connected to the right input
14
Output OK but input connected to 24VDC
Stuck input
15
Short circuit between photocell test and
photocell input
Photocell response time too low
16
No response from photocell
The test signal on the photocell emitter is not seen on the receiver
17
Short circuit between photocells
The test signal is present on two different photcells
18
MAT disconnected
Wrong mat connection
19
Output inconsistent with feedback
The test signal on input is present on more than one OUT_TEST
20
Connection incorrect
The test signal is present on more than one input
21
Output stuck
The test signal on the input is not present on the OUT_TEST
22 (0x16)
Second OUT_TEST KO
Redundancy check failed on OUT_TEST
1 3 3 (0 x8 5 )*
)
TWO-HAND concurrent failed
Two-hands switch has to change state simultaneously
1 3 4 (0 x8 6 )*
)
Not started
Start test failed
1 3 7 (0 x8 9 )*
)
Waiting for restart
The input has manual reset and has not been restarted
Ta b le 3
*
)
The diagnostic 133, 134 and 137 do not provide visual error message on the LED from SAFEMASTER PRO
Safety outputs OSSD
OSSD Diagnostics
0
OSSD DIAGNOSTICS OK
1
ENABLE MISSING
2
WAITING FOR RESTART OSSD
3
FEEDBACK K1/K2 MISSING
4
WAITING FOR OTHER MICRO
Redundancy check failed on OSSD
Ta b le 4
If there are more than one diagnostic codes, the information changes every 500ms.
