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4
FUNCTIONS
4.3 Start-up Method Selection Function
4 - 3
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
SETTINGS AND
PROCEDURES BEFORE
OPERATION
6
TROUBLESHOOTINGAPPENDIX
4.3 Start-up Method Selection Function
This function allows to select the start-up method with the start-up mode setting switch.
The start-up method has auto mode and manual mode.
(1) Auto mode
This mode starts automatically after safety input and off check are all met.
Set the start-up mode setting switch to "A" side.
Use this mode when connecting such as door switch.
(2) Manual mode
This mode starts by pressing the start-up switch when safety input and external
device connected to the start-up/off check terminal are all met.
The mode starts after the start-up input turns from ON to OFF to prevent a malfunction
due to contact welding of the start-up switch.
Set the start-up mode setting switch to "M" side.
Use this mode when connecting such as operation preparation switch.
POINT
• Short-circuit between the start-up input XS0 and XS1 during the auto
mode.
Doing so may cause a malfunction or failure of the module.
• According to the standard, the system cannot start at the auto mode for
operation preparation or when using the light curtain.
In this case, connect the start-up switch or recovery reset switch and use
it in the manual mode.
• When using the start-up switch during the manual mode, always use the
momentary type of NO (normal open).
Connect the normally closed contact of forcibly guided type to off check
input.
If using other than mentioned above, it may cause a malfunction or failure
of the module.
• Do not change the start-up mode setting switch settings after powering
ON.
4.4 Safety Output Function
This function prevents incorrect output due to a single failure by doubling safety relay
outputs internally.
The output can be stopped even if the one contact fails due to welding.
Moreover, once a contact fails due to welding, the system does not start after that;
therefore, the safety is not damaged.