Event code Event name Meaning Assumed cause
Level
Reference
M
a
j
P
rt
M
i
n
O
b
s
I
n
f
o
74AC0000 hex SF_OutCon-
trol Error
An error was detect-
ed in execution of a
safety function block.
Refer to information on the diag-
nostic code that is given for at-
tached information 1 in the NX-
series Safety Control Unit
Instructions Reference Manual
(Cat. No. Z931).
¡
page
12 - 50
74AD0000 hex SF_Safe-
tyRequest
Error
An error was detect-
ed in execution of a
safety function block.
Refer to information on the diag-
nostic code that is given for at-
tached information 1 in the NX-
series Safety Control Unit
Instructions Reference Manual
(Cat. No. Z931).
¡
page
12 - 50
74AE0000 hex SF_Testa-
bleSafety-
Sensor Error
An error was detect-
ed in execution of a
safety function block.
Refer to information on the diag-
nostic code that is given for at-
tached information 1 in the NX-
series Safety Control Unit
Instructions Reference Manual
(Cat. No. Z931).
¡
page
12 - 51
74AF0000 hex SF_Two-
HandCon-
trolTypeII Er-
ror
An error was detect-
ed in execution of a
safety function block.
Refer to information on the diag-
nostic code that is given for at-
tached information 1 in the NX-
series Safety Control Unit
Instructions Reference Manual
(Cat. No. Z931)
.
¡
page
12 - 51
74B00000 hex SF_Two-
HandCon-
trolTypeIII
Error
An error was detect-
ed in execution of a
safety function block.
Refer to information on the diag-
nostic code that is given for at-
tached information 1 in the NX-
series Safety Control Unit
Instructions Reference Manual
(Cat. No. Z931)
.
¡
page
12 - 52
l
Operation Stop Error Related to Program Execution
Event code Event name Meaning Assumed cause
Level
Reference
M
a
j
P
rt
M
i
n
O
b
s
I
n
f
o
55000000 hex Division by
Zero
Division by zero was
detected.
The divisor is zero.
¡
page
12 - 53
55010000 hex Cast Error A casting error was
detected.
A value was input that exceeded
the range of the receiving varia-
ble.
¡
page
12 - 54
55020000 hex MUX Error An MUX instruction
error was detected.
The value of the selection input
(K) to the MUX instruction is not
correct.
¡
page
12 - 55
l
Setting Errors
12 Troubleshooting
12 - 23
NX-series Safety Control Unit User's Manual (Z930)
12-3 Checking for Errors with the Sysmac Studio
12
12-3-3 Event Codes for Errors and Troubleshooting Procedures