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®
EZ-SCREEN
Type 2 Light Screen
•
Power Monitoring is a series-parallel connection of monitor contacts that are forced-guided (mechanically linked) from each
device controlled by the EZ-SCREEN. The monitoring contacts should transition within 200 milliseconds of the OSSD outputs
switching ON or OFF. If the transition results in an open condition on pin 8 (Reset/Test input) longer than 200 ms, a Test cycle
will turn OFF the OSSD outputs. Refer to
Module (2-Channel EDM, Manual Reset)
•
No Monitoring. Use this configuration initially, in order to perform the initial checkout; see
25. If No Monitoring is selected, the user must ensure that any single failure of the external devices does not result in a
hazardous condition and, in such a case, a successive machine cycle will be prevented. To configure the System for No
Monitoring, simply do not interface the Power Monitoring circuit (i.e., the four forced-guided normally open contacts from each
device) and connect directly to +24V dc.
CAUTION: EDM Monitoring
If the system is configured for "No Monitoring," it is the user's responsibility to ensure that this does not create a
hazardous situation.
4.4.5 Preparing for System Operation
After the initial trip test has been accomplished, and the OSSD safety outputs and EDM connections have been made to the machine to
be controlled, the EZ-SCREEN Type 2 is ready for testing in combination with the guarded machine.
The operation of the EZ-SCREEN Type 2 with the guarded machine must be verified before the combined System and machine may be
put into service. To do this, a Qualified Person must perform the Commissioning Checkout Procedure described in
Checkout
on page 41.
4.5 Reference Wiring Diagrams
4.5.1 Generic Emitter Wiring Diagram
Note: *Pins 2, 3, 4, 5, and 8 are not connected or are connected in parallel to the same color wire from the receiver cable.
32
Generic Wiring to FSDs (manual reset)
on page 34 for Power Monitoring hookup.
+24V dc
Bn (#1)
Gn/Ye (#7)
Bu (#6)
Bk (#5)
n.c.*
Wh (#4)
n.c.*
Vi (#8)
n.c.*
Or (#3)
n.c.*
Or/Bk (#2)
n.c.*
Figure 18. Emitter—Generic Wiring Diagram
www.bannerengineering.com - Tel: 763.544.3164
on page 33 and
Generic Wiring — Interface
Initial Checkout Procedure
Commissioning
0V dc
on page
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