IDEC SmartRelay Manual
171
IDEC SmartRelay functions
4.4 Special functions list - SF
4.4.16 Operating hours counter
Short description
A configured time is triggered with a signal at the monitoring input. The output is set when this
time has expired.
Symbol in IDEC
SmartRelay
iring Description
Input R A positive edge (0 to 1 transition) at input R resets
output and sets a configured value MI at the counter
for the duration of the time-to-go (MN).
Input En En is the monitoring input. IDEC SmartRelay scans
the on-time of this input.
Input Ral A positive edge at input Ral (Reset all) resets the
operating hours counter (OT) and the output, and sets
the time-to-go value (MN) to the maintenance interval
MI:
Output 0
Measured operating time OT 0
Time-to-go of the maintenance interval MN MI.
Parameter MI: Maintenance interval to be preset in units of hours
and minutes
Range of values:
0000 h to 9999 h, 0 m to 59 m
OT: the accumulated total operating time (you can
specify an offset in hours and minute)
Range of values:
00000 h to 99999 h, 0 m to 59 m
0 occurs depending on the following conditions:
hen R is selected:
1, if MN 0
0, if R 1 or Ral 1
hen REn is selected:
1, if MN 0
0, if R 1 or Ral 1 or En 0.
Output The output is set when the time-to-go MN 0 (see
timing diagram).
The output is reset under the following conditions:
hen 0:REn, if
R 1 or Ral 1 or En 0
hen 0:R, if R 1 or Ral 1.
Note
MI, MN and OT are always retentive.
K
4
5
(Q
5DO
+
RXUV&RXQWHU
3DU
To Next Page
Loading...
Need help?
General
