CONTROL SYSTEM
2-32
TNV Application Manual
Contact input
There are two schemes for contact input of the E-ECU: High-side input and Low-side input. See
.
The contact input of the E-ECU has been designed with the same sink current and source current of 1.0 mA
typ.
Figure 2-17
Contact input schemes and input logics
There are two types of switch contacts connected to contact inputs: Normally open (NO) contact and
normally closed (NC) contact.
illustrates the voltage levels at the input terminal for the high-side contact input. When the
switch turns on, the input terminal goes high for the switch with NO contact and goes low for the switch with
NC contact.
Figure 2-18
Switches for high-side contact input
VB
1.2k
Cont
a
ct inp
u
t
ECU
VB
1.2k
Cont
a
ct inp
u
t
ECU
(
a
) High-
s
ide cont
a
ct inp
u
t
(
b
) Low-
s
ide cont
a
ct inp
u
t
S
W=ON
→
High(1)
S
W=OFF
→
Low(0)
S
W=ON
→
Low(1)
S
W=OFF
→
High(0)
S
ink c
u
rrent
10mA
S
o
u
rce c
u
rrent
10mA
VB
1.2k
Cont
a
ct inp
u
t
ECU
(
a
) Norm
a
lly open
s
witch inp
u
t
S
W=ON
→
High
(
1
)
S
W=OFF
→
Low
(
0
)
S
ink
c
u
rrent
10mA
VB
1.2k
Cont
a
ct inp
u
t
ECU
(
b
) Norm
a
lly clo
s
e
s
witch inp
u
t
S
W=ON
→
Low
(
1
)
S
W=OFF
→
High
(
0
)
S
ink
c
u
rrent
10mA
00_Electronic_Control_System.book 32 ページ 2006年5月29日 月曜日 午後2時12分
Содержание Yanmar 3TNV82A-B
Страница 95: ...CONTROL SYSTEM 2 76 TNV Application Manual 00_Electronic_Control_System book 76...
Страница 96: ...Appendix Standard harness 1 00_ _E fm 1...
Страница 97: ...Appendix Standard harness 2 00_ _E fm 2...
Страница 98: ...TNV Series service tool Operation Manual...
Страница 132: ...32 7 Main Menu Figure 7 15 Data Logging Data Monitor Screen...
Страница 145: ...7 Main Menu 45 Figure 7 27 System Installation Configuration Screen...