Emergency Reset Function; Description; Interface; Normal State Of External Switch - Racal Instruments X Series Manual

Emergency Reset
Function

Description

Interface

Normal State of
External Switch
Using the 1260-100X 3-2
To enhance safety in applications that involve power switching,
certain Adapt-a-Switch plug-ins and conventional 1260-Series
modules offer an emergency reset function, activated by an
external input. This function instantly opens all relays in
response to an external event. This is a hardware operation that
does not require intervention on the part of the Option-01T or
application software.
When using the emergency reset feature, exercise due caution if
any undesirable effects may result from opening all channels.
Select Adapt-a-Switch plug-ins and 1260-Series modules have a
pair of front-panel-mounted connector pins. You may connect
these to an external device such as a mechanical switch. When
the switch is opened, all relays on the plug-in or module are
immediately opened.
An example of a plug-in that provides the emergency switch
interface is the 1260-120 Power Switch. All other plug-ins and
1260-Series modules that provide the switch interface operate in
the same manner as the 1260-120.
If desired, a jumper setting on the plug-ins allows it to
accommodate a normally-closed external switch. Normally-open
is the default. Refer to the individual plug-in manual.
1260-100X User Manual
Racal Instruments © 2005