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OMRON Scientific Technologies Inc.
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© OMRON STI 0613 PN99804-0060 Rev. B
Figure 3-1 Cascaded MSF4800
3.3.2
MSF4800 S
EGMENT
R
EDUCTION
R
ES TART
P ROCEDURE
If you reduce the number of cascaded segments while power is on, you will cause a flex bus fault. The
MSF4800 will enter a fault condition, indicated by error code “95” on the IBIs. After power cycling the
system to clear the flex fault, fault code “100” will be displayed. If the number of segments is reduced
while power is off, the light curtain will power on with fault code “100”. (NOTE: this will appear as
one IBI led on). This fault code indicates that there was a reduction in the number of cascaded
segments.
To clear this fault and restore operation on the reduced size MSF4800 the following procedure must be
followed.
1. Apply power, if power is applied the power must be cycled.
2. The three indicator LEDs (red, yellow, amber) will flash for 60 seconds.
3. While the LEDs are flashing, the EDM switches must be cycled in the following sequence:
a. Flip SW A EDM switch from Off to On position.
b. Flip SW B EDM switch from Off to On position.
c. Flip SW A EDM switch from On to Off position.
d. Flip SW B EDM switch from On to Off position.
4. Toggle the SW A Program switch On-off-On, or (off-on-off)
5. The 4800 will then reset itself.
The transmitter will not fault if the number of segments is reduced. However, to operate normally the
transmitter must always match the receiver in the number of segments and beams.
Receiver
Segment
T
ransmitter
Segment
"Cascaded" Segment
"Cascaded" Segment
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