Panasonic WUME-SF4D-4, Instruction Manual

Page: 105 / 176

Functions
© Panasonic Industrial Devices SUNX Co., Ltd. 2017 105
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)>
ON
ON
OFF
OFF
300ms or less 300ms or less
50ms or less (Note 1)
(Note 2) (Note 2)
External device
monitor input
Control output
(OSSD 1 / 2)
Light received
Light blocked
Light received
state
<Timing chart (Error 1)>
ON
ON
OFF
OFF
300ms or less
(Note 1)
(Note 2)
External device
monitor input
Control output
(OSSD 1 / 2)
Light received
Light blocked
Light received
state
Lockout state