4 Safety Function Blocks
4 - 76
NX-series Safety Control Unit Instructions Reference Manual (Z931)
Error Detected
The FB detects the following errors.
• DiscTime11_12
or
DiscTime21_22
is set to less than T#0s or more than T#4s.
• MaxMutingTime
is set to less than T#0s or more than T#10min.
• The discrepancy time for a sensor pair (
MutingSwitch11
and
MutingSwitch12
, or
MutingSwitch21
and
MutingSwitch22
) exceeded the set value.
• Muting (
S_MutingActive
= TRUE) exceeded
MaxMutingTime
(maximum muting time).
• The muting sensors (
MutingSwitch11
,
MutingSwitch12
,
MutingSwitch21
, and
MutingSwitch22
)
operated in an incorrect order.
• A muting sequence started without being enabled by
MutingEnable
.
• A muting lamp failure was indicated (
S_MutingLamp
= FALSE).
• An undetected change to TRUE in the
Reset
input was detected in state 8001 or 8003.
Operation for Errors
• When an error occurs, the
S_AOPD_Out
and
S_MutingActive
outputs are set to FALSE. The
DiagCode
output gives the relevant error code and the
Error
output is set to TRUE.
• Operation is not restarted until the error is reset and the operator acknowledges the safe state
with
Reset
.
FB-specific Error Codes
Timing Charts
Instruction Execution Errors
DiagCode (hexadecimal)
DiagCode
(decimal)
Status name
Status description and output results
C001
49153
Reset Error 1
When the Init state was entered, an undetected
change to TRUE in the
Reset
input was detected.
Ready
= TRUE
S_AOPD_Out
= FALSE
S_MutingActive
= FALSE
Error
= TRUE
Activate
MutingEnable
S_AOPD_In
S_MutingActive
MutingSwitch11
MutingSwitch12
MutingSwitch21
MutingSwitch22
Error
S_AOPD_Out
DiagCode
8000
8000 / 8011
8012
8012
8012
8014
8021
8021
8021
8021
8000
8000
Summary of Contents for NX-SL series
Page 8: ...CONTENTS 6 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 28: ...Sections in this Manual 26 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 98: ...2 Standard Functions 2 64 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 104: ...2 Standard Functions 2 70 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 110: ...2 Standard Functions 2 76 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 265: ...I 1 I NX series Safety Control Unit Instructions Reference Manual Z931 Index ...
Page 268: ...I 4 NX series Safety Control Unit Instructions Reference Manual Z931 Index ...
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