Function Diagram
U H
A1-A2
U St
B1-A2
t
1
AV
t
2
EW
0,5s
t
3
IE
t
t
4
BI
U H
A1-A2
U St
B1-A2
t
5
RV
t
t
6
IF
t
7
AW
t
8
AV/RV
MK 7850N/200
...
= Position of function switch
AV
= Delay on energisation
EW = Fleeting on make
IE
= Delayed pulse
BI
= Flasher,
start with pulse
U N
0
U N
0
t a
t b
t c
t d
15-18
t=t a +t b +t c
15-16
15-18
t=t a +t b +t c
15-16
15-18
t=t a +t b +t c
0,5s + t d
15-16
t e
t f
15-18
t=t a +t b +t c
t=t e + t f
15-16
U N
0
U N
0
15-18
t
t
15-16
15-18
t
t
15-16
15-18
t
t
15-16
15-18
t
t
t
15-16
M8290
RV
= Delay on de-energisation
IF
= Pulse forming function
AW
= Fleeting on break
AV/RV = Delay on energisation and
de-energisation
Function Diagram
U H
A1-A2
U St
B1-A2
t 1
1
AV
t 1
2
EW
0,5s
IE
t 1
S1: A*
3
IE
t 1
t 2
S1: B*
TI
t 1
t 2
t 1
S1: A*
4
TP
t 2
t 1
t 2
S1: B*
U H
A1-A2
U St
B1-A2
t 1
5
RV
t 1
6
IF
AW
t 1
S1: A*
7
EW/AW
t 2
S1: B*
8
AV/RV
*) A and B indicate the position of function slide switch S1
MK 7850N/500
...
= Position of function switch
AV
= Delay on energisation
EW = Fleeting on make
IE
= Delayed pulse
S1 in positon A:
t1: Adjustable, t2 = 0.5 s fixed
S1 in position B:
t1 and t2 adjustable
TI
= Cyclic timer,
start with pulse
S1 in position A
TP
= Cyclic timer,
start with break
S1 in position B
16
t a
t b
t c
t d
t 1 =t a +t b +t c
t 1 =t a +t b +t c
t 1 =t a +t b +t c
0,5s + t d
t e
t f
t 1 =t a +t b +t c
t 2 =t e +t f
t 1 =t a +t b +t c
t 2 =t e +t f
t g
t h
t i
t 2 =t a +t b +t g
t 1 =t h +t i
t 1
t 1
t 1
t 1
t 1
t 1
t 1
t 1
t 2
t 1
t 2
t 1
t 2
t 1
t 2
M8291
RV
= Delay on de-energisation
IF
= Pulse forming function
AW
= Fleeting on break
S1 in position A
EW/AW = Fleeting on make
and break
S1 in position B
AV/RV = Delay on energisation
and de-energisation
MK 7850N / 07.02.23 en / 683A
U N
0
U N
0
15-18
15-16
15-18
15-16
15-18
15-16
15-18
15-16
15-18
15-16
15-18
15-16
U N
0
U N
0
15-18
15-16
15-18
15-16
15-18
15-16
15-18
15-16
15-18
15-16