PR 4131 - Graphic Depiction of Relay Action Setpoint; Graphic Depiction of Relay Action Window

100
90
80
70
60
50
40
30
20
10
0 10 20 30 40 50 60 70 80 90 100
t
Off N.O. Off N.O.On N.O.
On N.C. On N.C.
Off N.C.
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40 50 60 70 80 90 100
t
Off N.O. Off N.O.On N.O.
On N.C. On N.C.
Off N.C.
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40 50 60 70 80 90 100
t
Off OffOff
1 1
2 2
OnOn On
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40 50 60 70 80 90 100
t
Off OffOff
1 1
2 2
OnOn On
4131V104-UK 33
Graphic depiction of relay action setpoint
Graphic depiction of relay action window
Relay unitsRelay units
Setpoint = 50
Hysteresis = 10
Hysteresis = 10
Setpoint = 50
Relay action: Increasing Relay action: Decreasing
Relay units
Setpoint High = 60
Hysteresis = 5
Hysteresis = 5
Setpoint Low = 40
Relay function: Window (shown for increasing signal)
Contact: Closed inside window =
Contact: Open inside window =
Relay units
Setpoint High = 60
Hysteresis = 5
Hysteresis = 5
Setpoint Low = 40
Relay function: Window (shown for decreasing signal)
Contact: Closed inside window =
Contact: Open inside window =
1
2
1
2