5
OMRON SCIENTIFIC TECHNOLOGIES INC.
Fremont CA USA
Tel: 1/888/510-4357 in USA and Canada
© OSTI 1209 PN99584-0050 Rev. E
Original Instructions
24
3. Set the Pattern select inputs, see Table 5-2
Switches for Multi Channel Select
4. Place the desired object in field (block beams) and press the “program” button, the display should
read “01”.
5. Push the “start” button, and the display should read “03”. The light curtain will enter the Machine
Run state.
6. To add more patterns (a total of eight possible) Set the Pattern select inputs to another program the
display will read “27”, press the start button and continue to step 4. Repeat steps 4 and 5.
7. To change from one pattern to another, change the ECS inputs to the desired program and push the
start button.
The 4700 system will then enter the interlock or machine stop condition, regardless of the operating
mode. The Start button may be pressed-and-released or power may be cycled to enter the machine run
state. Subsequent power cycles will result in operation in accordance with the configured operating
mode.
A new ECS pattern is recorded when the system is in the machine stop state with no alarms, the
configuration switches are correctly set, and the Program button is pressed and released. If the
configuration switches are subsequently set to disable ECS, the stored ECS pattern is cleared.
NOTE! Replace controller cover after changing system configuration. See
and
for details.
SWITCH A
SWITCH B
OPERATING MODE
4
5
6
4
5
6
Exact Channel Select Active
CLOSED
/ON
CLOSED
/ON
Exact Channel Select Inactive
(default setting)
OPEN
/OFF
OPEN
/OFF
One-channel Floating Blanking
Active
CLOSED
/ON
OPEN
/OFF
CLOSED
/ON
OPEN
/OFF
Two-channel Floating Blanking
Active
OPEN
/OFF
CLOSED
/ON
OPEN
/OFF
CLOSED
/ON
Floating Blanking Inactive (default
setting)
OPEN
/OFF
OPEN
/OFF
OPEN
/OFF
OPEN
/OFF
Not Allowed – alarm Condition
CLOSED
/ON
CLOSED
/ON
CLOSED
/ON
CLOSED
/ON
Table 5-9 Switch Settings, Exact Channel Select and Floating Blanking
5.7 A
CTIVATING
F
LOATING
B
LANKING
Floating Blanking (either one- or two- beam) is activated by setting positions 5 and 6 of Switches A
and B located under the controller cover. Refer to . Any mismatch between the settings of Switches
will result in an alarm condition. Use of the program button is not required.
5.8 A
DDITIONAL
G
UARDING
W
HEN
U
SING
E
XACT
C
HANNEL
S
ELECT
Exact Channel Select creates “holes” in the detection zone. These “holes” are required for certain
applications. If an obstruction does not completely fill these “holes” one of two actions will need to
happen: (Refer to Figure 5-3
Adding Hard guarding to Light Curtain when Using Channel Select
1. The safe mounting distance will need to be increased to account for the larger opening in the curtain.
2. The area not filled by an obstruction must be guarded, typically by some method of hard guarding.
