Panasonic ST4 Series Instruction Manual page 49

This function turns the safety function of ST4-C12EX into invalid temporarily.
When the control output (OSSD 1 / 2) is ON, this function is available for pass-
ing the workpiece through the sensing area of the device without stopping the
device.
The muting function becomes valid when all the conditions listed below are
satisfied:
● The control output (OSSD 1 / 2) shall be ON.
● The incandescent lamp with 1 to 10W shall be connected to the muting
lamp output.
● The muting inputs between S-A and S-B (between S-C and S-D, or be-
tween S-E and S-F) shall be changed from OFF (open) to ON. The time
difference from OFF to ON shall be 0 to 3 sec.
However, if exceeding 180 sec. time limit, the muting function will be invalid.
The following devices, photoelectric sensor with semiconductor output, induc-
tive proximity sensor, position switch on NO (Normally Open) contacting point,
etc. are available for applying to the muting sensor.
<Specification for muting sensor>
ON with beam non-received condition
(photoelectric sensor, etc.)
ON with object approaching condition
(inductive proximity sensor, etc.)
ON with object contacted condition
(position switch, etc.)
<Reference>
The muting function can be used continuously even if make the muting lamp diag-
nosis function invalid. However, in case of not activating the muting lamp diagnosis
function, perform the risk assessment and confirm the standards or regulations appli-
cable in each region or country before using the muting function.
For details, refer to "3-11 Muting Lamp Diagnosis Function."
© Panasonic Industrial Devices SUNX Co., Ltd. 2016
Be sure to use the muting sensor that satisfies the <Specification
for muting sensor> above. If using the other muting sensor not
satisfying the specification above, the muting function might become
valid with the timing that the machine designer cannot expect and
could result in death or serious injury.
Performance when ON
S-A terminal
S-C terminal Output +V
S-E terminal
S-B terminal
S-D terminal Output 0V
S-F terminal
Functions
Performance when OFF
Open
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