SICK Flexi Compact User Manual

Table 133: Faults in the safety capable inputs (I)
Fault Responses Causes
Electro-mechanical
s
witch/safety switch
(EMSS), safety sen‐
sors with test input,
Flexi Loop: safety
capable input is Low
instead of High
•
Pr
ocess data bit of the affected
input = 0
•
Short-circuit to another line
e.g., GND
•
Error in the sensor
•
Line break
Electro-mechanical
s
witch/safety switch
(EMSS), safety sen‐
sors with test input,
Flexi Loop: test
pulses from the asso‐
ciated test output
X are not detected
correctly (short-circuit
detection)
•
Pr
ocess data bit of the affected
input = 0
•
Status Ix process data status bit =
0
•
Module status bit of the affected
Status Ix input = 0
•
Short-circuit to other volt‐
age-carrying line
•
Error in the sensor (for exter‐
nally tested sensors)
Dual-channel elec‐
t
ro-mechanical safety
switch (EMSS), safety
sensors with moni‐
tored semiconductor
outputs (OSSD): equiv‐
alent/complementary
safety capable inputs
exhibit different/the
same values.
•
Pr
ocess data bit of the affected
input = 0
•
Status Ix, ly dual-channel evaluation
process data status bit = 0
•
Module status bit of the affected
Status Ix, ly dual-channel evaluation
input = 0
•
Short-circuit to another line
e.g., GND
•
Error in the sensor
•
Line break
•
Discrepancy time
•
Sequence error
Safety pressure mats:
s
afety capable input
is Low instead of test
pulse signal from the
associated test output
X
•
Pr
ocess data bit of the affected
input pair = 0
•
Status Ix process data status bit =
0
•
Module status bit of the affected
Status Ix input = 0
•
Line break
Test output → sensor
•
Line break
Sensor → s
afety capable
input
Safety pressure mats:
s
afety capable input is
High instead of test
pulse signal from the
associated test output
X
•
Pr
ocess data bit of the affected
input = 0
•
Status Ix, ly dual-channel evaluation
process data status bit = 0
•
Module status bit of the affected
Status Ix, ly dual-channel evaluation
input = 0
•
Short-circuit to other volt‐
age-carrying line
Internal error detected
in in
put evaluation
•
S
afety controller switches to the
critical error status
•
Internal error module status bit = 0
•
Internal device error
Table 134: Faults in the safety outputs (Q)
Fault Responses Causes
Output voltage level
is L
ow instead of
High when the output
is “On”, overload/over‐
current
1) 2)
•
A
ssociated output/associated
output pair is switched off
•
Depending on the load, the
affected output may pulsate tem‐
porarily until the final switch-off
•
Status Qx short-circuit to Low process
data status bit = 0
•
Status Qx short-circuit to Low module
status bit = 0
•
Short-circuit or resistance
drop under load
•
Short-circuit to another line
e.g., GND
11 TROUBLESHOOTING
122
O P E R A T I N G I N S T R U C T I O N S | Flexi Compact 8024589/2020-11-10 | SICK
Subject to change without notice

SICK Flexi Compact Specifications

General

Brand	SICK
Model	Flexi Compact
Category	Controller
Language	English