Omron S8M - 2-5 Startup Sequence Function

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Startup Sequence Function Section 2-5
2-4-4 Run Time Alarm
An alarm can be output when the run time exceeds the alarm value.
Note An alarm will not be output when the alarm value is set to 0.0 kh. Set the
alarm value to 0.0 kh (default value) when the run time alarm is not needed.
Refer to page
71 for details on clearing the run time.
2-5 Startup Sequence Function
The inrush current may cause a voltage drop if all of the branch outputs are
connected simultaneously and there is little spare capacity in the power sup-
ply or the loads connected to the branch outputs are capacitive loads. A signif-
icant voltage drop may cause an output to be cut off. In this case, a time delay
(see note) can be applied between the connections of the branch outputs to
minimize the voltage drop.
Note (1) The time delay can be set between 0.0 and 99.9 s. (If the delay is set to
0.0 s, the startup sequence will not operate and the branch output will be
connected immediately.)
(2) The startup sequence is designed for the four branch outputs on one
S8M. It does not provide time synchronization between outputs on more
than one S8M.
After the power supply is turned ON and the self-diagnostics are performed,
the S8M will start connecting the branch output according to their preset star-
tup sequence times.
Setting
range
Default
value
Operation Seven-
segment
display
Outputs Conditions
required to
reset
0.0 to
99.9 kh
0.0 kh
(See
note.)
An alarm is out-
put when the run
time exceeds the
alarm value.
Alternately dis-
plays error
code A23 and
the run time.
The Alarm
Output
(ALM) is
turned OFF.
Either set a
higher alarm
value or clear
the run time.
Power supply
voltage
Branch output 1
voltage
Branch output 2
voltage
Branch output 3
voltage
Branch output 4
voltage
Self-diagnostics
(0.5 s min.)
Setting time
Setting time
Setting time
Setting time