SICK safeVisionary2 - Page 88

Fault type Brief description Cause Troubleshooting
N1 Invalid input signal The signal applied at the control
in
puts is not assigned to a monitor‐
ing case. The signal is applied for
longer than the set input delay +1s.
b
Chec
k the configuration with
Safety Designer.
b
Check the working process of the
machine.
N2 Incorrect switching
seq
uence
The configured switching sequence
was interrupted by the new monitor‐
ing case.
b
Chec
k the working process of the
machine.
b
Change configured switching
order.
N3 Invalid input signal The signal present at the static con‐
t
rol inputs/parity inputs is invalid.
The signal is applied for longer than
1s.
b
Chec
k activation of the control
inputs/parity inputs.
T1 Temperature error The operating temperature of the
de
vice has exceeded or fallen below
the permitted range.
b
Chec
k whether the device is
being operated as per the per‐
missible ambient conditions.
W1 Warnings exceed toler‐
ance t
ime
The combination of multiple warn‐
ings has resulted in a fault. The
tolerance time of 1s has been
exceeded as there are multiple
warnings.
b
Use S
afety Designer to check
what warnings exist.
11 TROUBLESHOOTING
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O P E R A T I N G I N S T R U C T I O N S | safeVisionary2 8025919/1I9E/2023-01-09 | SICK
Subject to change without notice