Operation
Operating Manual PSEN sg2c
1003267-EN-04
49
9.3
Remedy
Fault conditions are indicated by flashing the LEDs. Some errors are displayed through
periodic flashing (see table); with other errors it is possible to establish an error code
through the number of flashes.
Error
Cause
Remedy
Safety switch does not re-
act, LED "Device" does not
light
Supply voltage missing/too
low
}
Check supply voltage and apply 24 V
"Safety Gate" LED flashes a
code and "Device" LED
flashes red
See section on Error codes
}
See section on Error codes
"Device" LED illuminates
red
Internal error
}
Please contact Pilz
"Input" LED flashes yellow,
only one safety output
switches
Only one channel of the in-
put circuit is open (partial
operation)
}
Open both channels of the input circuit and
close them again
Only one safety output
switches
Only one channel of the in-
put circuit is open, wiring er-
ror
}
Check wiring of terminals X2-3 and X2-4
Signal output does not
switch when actuator is en-
gaged, "SafetyGate" LED
does not light up
Actuator not detected
}
Insert actuator as far as it will go
Solenoid does not switch
Supply voltage or voltage
for solenoid operation is too
low, error in the wiring
}
Check voltages and apply 24 V, check wir-
ing,
}
Increase voltage for solenoid to increase
tolerance,
}
reduce cable run,
}
Use cable with a greater conductor cross
section
Solenoid does not switch,
"SafetyGate" LED does not
light up
Actuator not detected
}
Insert actuator as far as it will go
Safety outputs fail to switch,
"Lock /Area Safe" LED
flashes red
Escape or auxiliary release
pin is not correctly in posi-
tion
}
Position the escape or auxiliary release pin
as far as it will go
}
Perform reset
"Device" and "Lock/Area
safe" LEDs flash red
Guard locking is active, 24V
is present at inputs X2-3
and X2-4, escape or auxili-
ary release pin has been
operated
}
Position the escape or auxiliary release pin
as far as it will go
}
Perform reset
"Safety Gate" LED lights up
and guard locking element
is engaged, but the outputs
are not switching.
Wrong actuator, e.g. 1.1-
coded actuators with 2.2-
coded safety switch
}
Insert correct actuator
