External Device Monitor Function - Panasonic SF4D Series Instruction Manual

3-6 External Device Monitor Function (8-core cable, 12-core cable)
The external device monitor function is used to check if an external device (safety relay, con-
ductor) connected to the control output (OSSD 1 / 2) operates normally in accordance with the
control output (OSSD 1 / 2).
Contact "b" of the external device is monitored, and if an error is detected such as malfunction-
ing due to contact welding, the device is put in the lockout state and the control output (OSSD 1
/ 2) turns OFF.
The monitor time of contact "b" is 300ms. If 300ms is exceeded, the lockout state activates.
● Enabling the external device monitor function
Connect the external device monitor input wire (pale purple) to the external safety relay that
is connected to the control output 1 (OSSD 1) wire (black) and the control output 2 (OSSD 2)
wire (white).
● Disabling the external device monitor function
Connect the external device monitor input wire (pale purple) to the auxiliary output wire (red).
Set the auxiliary output to [negative logic of control output (OSSD 1 / 2)] (factory setting) [Set
using the communication module SF4D-TM1 (option) and Configurator Light Curtain soft-
ware].
When the external device monitor function is invalid, external devices cannot be connected
to the auxiliary output.
<Reference>
You can invalid the external device monitor function using the communication module SF4D-TM1
(option) and Configurator Light Curtain software. You can also change the allowed response time
within the range 100 to 600ms.
<Timing chart (Normal)>
Light received
Light received
state
Light blocked
Control output
(OSSD 1 / 2)
External device
monitor input
<Timing chart (Error 1)>
Light received
Light received
state
Light blocked
Control output
(OSSD 1 / 2)
External device
monitor input
© Panasonic Industrial Devices SUNX Co., Ltd. 2017
(Note 1)
ON
OFF
300ms or less
ON
OFF
(Note 1)
ON
OFF
300ms or less
ON
OFF
50ms or less
(Note 2)
(Note 2)
Lockout state
Functions
300ms or less
(Note 2)
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