Omron MiniSafe 4800 Series Installation And Operating Manual page 19

4
Figure 4-1 Connecting PDM to MSF4800
MSF4800 S
4.3.2
If you reduce the number of cascaded segments while power is on, you cause a flex bus fault. The
MSF4800 will enter a fault condition, indicated by error code "95" on the PDM and on the IBIs as
well. 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". This fault code indicates that there was a reduction in the number of cascaded segments. There
are two possible methods to clear this fault and restore operation on the reduced size MSF4800. The
PDM or the Start input line can be used.
When a PDM is available, the fault code "100" will be cleared when you load the configuration from
the light curtain and save the new reduced system configuration.
If a PDM is not available the start input can be used. The start switch needs to be pressed while the
power is applied. The three indicator LEDs (red, yellow, amber) will flash for approximately three
seconds. The start switch must be released within 2 seconds, while the LEDs are flashing to clear fault
code "100". Since the MSF4800 has a configurable start input, care must be taken to ensure that the
correct contact configuration is used and that it is wired properly.
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.
OMRON Scientific Technologies Inc.
"Cascaded" Segment
Receiver
Segment
R R
EGMENT EDUCTION ESTART PROCEDURE
16
"Cascaded" Segment
Transmitter
Segment
Programming and Diagnostic Module(PDM),
connects to either transmitter or
receiver unit.
© OMRON STI 0715 PN99804-0010 Rev. R