Rockwell Automation 445L Installation and Operating Instructions - Manual (Page 10)

R
Muting Controller Box Installation and Operating Instructions
10
Original instructions
Reset
The reset function switches on the OSSD safety outputs consider the safety light curtain is uninterrupted.
Figure 16: Reset function
Mute Dependent Override
An error in the muting signal sequence will discontinue the muting condition. If the safety light curtain is then interrupted the OSSD
outputs will switch off. This normally leads to a stoppage of the movement of the material. The muting lamp will flash.
For moving the material out of the protective field area in this situation (protective field interrupted), the start signal triggers the mute
dependant override function.
Figure 17: Mute dependent override function
Lockout and Restart
The following fault conditions will lead to a lockout:
• The connection to the Micro 400 safety light curtain emitter or receiver is interrupted.
• Defect in the electronics of Micro 400 light curtain or the MSR42 controller.
• Supply over- or undervoltage
• Error in EDM
A lockout is indicated with LED “Error Status” (= off ) and with the output signal “Lockout” of connector “PWR/IO” (Pin 4). On the Micro 400
light curtain it is indicated with the red blinking LED (emitter and receiver).
The maximum activation time t(mdo)
a
for
this override function is set to one minute by
default. This time has to be considered on
risk analysis of the application.
The “Reset/Override” switch has to be
mounted at a location, where the dangerous
area can be overseen.
The mute dependant override function is
automatically terminated after the mute
dependant override time t(mdo) has
elapsed, or when the safety light curtain is
no longer interrupted.
a. Mute dependent override time
24V
Start 0V
24V
OSSD 0V
> 0.1 s
ATTENTION
24V
Start 0V
24V
OSSD 0V
> 0.1 s
24V OSSD
Light
Curtain
0V
max. t(m do)