Creating Screen Projects; Emergency Stop Switch - Omron NSH5 Operation Manual

Creating Screen Projects

3-1 Creating Screen Projects
3-2

Emergency Stop Switch

Note
Note
34
Settings are required from the CX-Designer to use function keys with software
notification (F3 to F5 and F8 to F10) or to obtain removable box station num-
bers. The settings for these functions are enabled when NSH5 screen
projects are created using CX-Designer. To create new projects using CX-
Designer, select the NSH5-SQ0@-V2 or the NSH5-SQ1@-V2 as the PT
model.
An NSH5 screen project can be created using screen data created for an ear-
lier PT. With the original screen project opened, it can be converted to an
NSH5 screen project by selecting Tool - Convert - Model from the menu, and
then selecting the NSH5-SQ0@-V2 or the NSH5-SQ1@-V2.
The emergency stop switch can be used by workers to immediately stop the
machine when an error occurs during operation or when a hazardous situa-
tion arises. The emergency stop switch has a DPST-NC contact structure for
an external safety circuit. At the same time, a software condition (NO bit) can
be used for internal or host notification, making the overall combined emer-
gency stop switch a DPST-NC contact + NO bit switch.
Use the software contact to monitor the emergency stop switch.
When the emergency stop switch is pressed to the lock position, as shown
below, it will be turned OFF and locked. This prevents the switch from being
turned OFF by being accidentally bumped, i.e., it will not operate unless it is
pressed all the way to the lock position. An emergency stop can thus be exe-
cuted only through a clear and intentional action. The lock is cleared by turn-
ing the button clockwise (in the direction of the RESET arrows).
Lock position
(1) When detaching and using the PT in a hand-held condition, use the
NSH5-SQG@0B-V2 (with grey switch). This functions as the stop switch and can
be used in either the hand-held or mounted condition. When using the NSH5-
SQR@0B-V2 (with red switch), it functions as the emergency stop switch so the
PT must be mounted and used on a control panel in a way that it cannot be de-
tached. Both gray and red switches have the same switching function.
(2) The emergency stop must be enabled in all modes, and it must take high-
est priority over any other control operations. (ISO 13850, Item 4-1;
IEC 60204-1, Item 9-2)
(3) An emergency stop switch must be located near each control panel or
other operation site, and it must be accessible for rapid use in case of
emergency. (ISO 12100-2, Item 3-7; ISO 13850, Item 4-4; and IEC
60204-1, Item 10-7)
Hard-wired DPST-NC contact
Software NO bit
Section 3-1
DPST-NC contact + NO bit