Programmable Relay ● User Manual for ELC, EXM and PR Series 120 2020 v6.0 ● © Rievtech Co.,
Ltd. ● www.rievtech.com
• Output Q = 0
• Measured operating time OT = 0
• Time-to-go of the maintenance
interval MN = MI.
MI: Maintenance interval to be pre-
set 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
Q → 0:
• When "R" is selected:
Q = 1, if MN = 0;
Q = 0, if R = 1 or Ral = 1
• When "R+En" is selected:
Q = 1, if MN = 0;
Q = 0, if R = 1 or Ral = 1 or En =
0.
The output is set when the time-to-
go MN = 0.
The output is reset:
• When "Q→0:R+En", if
R = 1 or Ral = 1 or En = 0
• When "Q→0:R", if R = 1 or Ral =
1.
Timing diagram
MI = Configured time interval
MN = Time-to-go
OT = Total time expired since the last 1 signal at the Ral
input
These values are principally held retentive!
Parameter
The maintenance interval MI can be provided by the actual
value of another already-programmed function:
Analog comparator (Ax – Ay) Analog threshold trigger
(Ax)
Analog amplifier (Ax) Analog multiplexer (AQ)