KEYENCE SL-R12EX - Manual (Page 27)

Chapter 2 Functions
2-11
2
ENGLISH
Important: * In the event that the signals from the muting devices turn ON or OFF in a different sequence
from what is indicated in the above 2 time charts (for either the forward and reverse direc-
tions) – for example, signal input from sensor A1 is followed by signal input from sensor B1,
etc. – the light curtain (SL-C Series) goes to the lockout condition, and the FSD turns OFF-
state.
* The SL-C Series muting function is designed so that it cannot be active while FSD is in the
OFF-state. As a result, the SL-C Series does not go to the muting state when any beam
axes are being blocked or when the restart interlock is enabled, even if the signals from the 4
muting devices turn ON in the correct sequence indicated above.
* When the SL-R11 receives an E-STOP input signal, the FSD always turns OFF-state and
the light curtain (SL-C Series) automatically goes to the restart interlock state, even if it has
been in the muting state. When the E-STOP input signals are canceled and the restart input
turns ON, the light curtain (SL-C Series) returns to normal operation, rather than resuming
the set muting state. As a result, in order to return the light curtain (SL-C Series) to the
muting state again, you must temporarily cancel the input signals from the muting devices
that have been activated and resend the input signals from them to the SL-R12EX.
* In the event that a change of the signal from one of the muting devices (ON or OFF) is not
followed by a change of the signal from the next muting device in less than 5 minutes, the
light curtain (SL-C Series) goes to the lockout condition, and the FSD turns OFF-state. (See
the below time chart for reference.)
Example
Sensor A1
Sensor A2
Sensor B1
Sensor B2
Muting function
Beam reception
FSD
ON
OFF
Clear
Blocked
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Lockout
More than 5 min.