Individual Cordsets
Splitter
Cordsets
Bn
Or/Bk
Or
Wh
Bk
Bu
Gn/Ye
Vi
+24V dc
C
n.c.
n.c.
OSSD2
OSSD1
0V dc
Ground
Reset/Test & EDM
A
B
D
C
A
B
Key
Description
A
Emitter
B
Receiver
C
QDE-8..D Cordsets
Key
Description
A
Emitter
B
Receiver
C
DEE2R.. Cordsets
D
CSB.. Cordsets
2.5.3 Manual Reset/Remote Test Input and EDM
A single input provides the means to reset the system from a latch or lockout
condition,
to externally test the light screen and its
interface, and to monitor external devices (EDM) for proper
operation.
If the System is in Run
condition
with outputs ON,
operating
the
switch results in a test. If the System is Latched or Locked Out,
operating
the switch results in a reset.
External Device Monitoring (EDM)
This feature allows the EZ-SCREEN Type 2 system to monitor the status of external devices such as MPCEs. A normally closed and a
normally open contact from each monitored device are wired in series-parallel to detect if one of the devices fails.
2.5.4 Status Indicators
Status indicators on both the
emitter
and receiver are clearly visible on each sensor’s front panel.
Power/Fault LED (Green)
Alignment LEDs
(Yellow)
Status Blocked LED (Red)
Status Clear LED (Green)
Figure 2. EZ-SCREEN Type 2
emitter
and receiver status indicators
EZ-SCREEN
®
Type 2 Light Screen
10
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