Triguard
SC300E
TDO16AIN
16-Channel Digital Output
Termination Card Introduced Power
24Vdc
(TDO16AIN)
Issue
6
October
2005
INTRODUCTION
PURPOSE
The
TDO16AIN
16
-
channel
digital
output
termination
card
acts
as
an
interface
between
the
digital
output
circuits
of
an
SC300E
chassis
and
the
field
devices
which
they
control.
It provides:
• Screw
terminals
for
the
field
wiring
• Power
supply
inputs
for
the
field
devices
• Fuse
protection
for
the
field
loops
with
local
and
remote
indication
of
fuse
failure
•
Overvoltage protection
• Dummy
loads
for
unused
digital
output
channels
—
to
prevent
spurious
operation
of
latent
fault
detection
circuits
in
the
associated
digital
output
module.
(Dummy
loads
are
only
to
be
connected
to
outputs
which
are
not
used).
This
document
is
intended
to
provide
a general
understanding
of
the
function
of
the
TDO16AIN,
sufficient
to
enable
basic
maintenance
operations
to
be
effected
in
the
field.
ASSOCIATED DOCUMENTATION
Reference
Title
008
-
5102
MDO32BNS
32
-
Channel
Digital
Output
Module
User
Manual
008
-
5104
PDD2
4 Power
Distribution
Panel
User
Manual
008
-
5150
MDO64BNS
64
-
Channel
Digital
Output
Module
User
Manual
008-5135
2
TDO16AIN
October
200
5
–
Issue 6
Triguard
SC300E
SPECIFICATION
Model
TDO16AIN
Power
supply
inputs
Has
four
separate
connectors
(FS1,
FS2,
FS3
and
FS4)
for
dc
power
supplies.
The
four
positive
supplies
feed
individual
sections
of
the
digital
outputs
via
common
buses.
The
buses
are
linked
together.
For
lightly
loaded
applications
(e.g.
6A)
all
the
required
power
can
be
supplied
via
one
connector.
For
highly
loaded
applications
(e.g.
16A)
use
multiple
power
connectors.
No.
of
digital
input
channels
16
Nominal
field
supply
voltage
24Vdc
Maximum
field
supply
voltage
33Vdc
Maximum
field
supply
curren
t
9A
for
each
of
the
four
input
connectors
(do
not
exceed
16A
total)
Fuse
in
each
positive
line
to
field
1A,
fast
acting,
indicating
Chassis
cable
connector
34 way DIN41612
Field
cable
connector
Screw
terminal
to
suit
2.5mm
2
wire
(16
AWG)
Fuse
blown
indication
Local:
Fuse
blown
LED
(one
per
card)
Remote:
Fuse
blown
alarm
output
(PL1)
–
can
be
connected
to
Fuse
blown
LED
on
Power
Distribution
Panel
(PDD24).
Safety
ground
terminal
TS1
M3
threaded
bush
provision
for
a ring
terminal.
Allows
the
common
0V
supply
bus
to
be
grounded
via
a 10k
ohm
resistor.
Prevents
the
channels
from
floating
if
the
card
is
d
isconnected
from
the
chassis.
Instrument
0V
terminal
TS2
M3
threaded
bush
provision
for
a ring
terminal.
Allows
the
field
0V
to
be
commoned
for
transient
suppression
protection.
Overall
size
(mm)
Overall
size
(inches)
162L
x 125W
x 107H
6.4L
x 4.9W
x 4.
2H
Weight
0.37kg
TDO16AIN
October
200
5
–
Issue 6
3
Triguard
SC300E TDO16AIN 16
-
Channel D/O Termination Card 24Vdc
ENVIRONMENTAL
SPECIF
ICATIONS
The
maximum
ambient
temperature
measured
at
the
hottest
point
within
the
Triguard
system
shall
not
be
greater
than
60
degrees
centigrade.
Temperature
operating:
+5°C
to
+60°C
Temperature
storage:
-
25°C
to
+70°C
Humidity:
5%
to
95%
non
-
condensing
at
ambient
< 40°C
EMC/RFI
Immunity:
Tested
and
certified
to
IEC
1131
-
Part
2 1994
Vibration/Shock:
Tested
and
certified
to
IEC
1131
-
Part
2 1994
Certification:
General
Certification:
Ref.
SC300E
TMR
Product
G
uide (ref 008
-
5209).
TRANSPORT AND HANDLING
The
termination
card
must
be
transported
and
stored
in
its
original
packing
material
which
should
be
retained
for
this
purpose.
4
TDO16AIN
October
200
5
–
Issue 6
Triguard
SC300E
TECHNICAL
DESCRIPTIO
N
PHYSICAL
The
TDO16AIN
comprises
a PCB
assembly
mounted
in
a moulded
carrier
that
can
be
snapped
onto
all
commercially
available
styles
of
DIN
EN
mounting
rail.
Connection
to
the
chassis
backplane
is
via
a multicore
cable
terminated
at
either
end
by
a DIN41612
connector.
Figure
2
-
2 shows
the
TDO16AIN
with
the
DIN4
1612
connector
attached
and
mounted
on
rail
EN
50022
type
NS
35/5.
Figure
2
-
1 General
view
and
component
layout
TDO16AIN
October
200
5
–
Issue 6
5
Triguard
SC300E TDO16AIN 16
-
Channel D/O Termination Card 24Vdc
Figure
2
-
2 Leading
dimensions
and
mounting
schematic
6
TDO16AIN
October
200
5
–
Issue 6
Triguard
SC300E
Figure
2
-
3 Power
distribution
system
EXTERNAL
CONNECTIONS
Table
2
-
1.
Fixed
terminal
Details
Field
terminals
1 to
16
(+)
Screw
terminal
to
suit
2.5mm
2
wire
Chassis
connector
J1
Connector,
34
-
way,
DIN41612,
female
Field
power
supply
inputs
FS1
to
FS4
Header,
2
-
way,
Molex
Minifit
Jr
Alarm
output
PL1
Header,
2
-
way,
Molex
KK
Ground
terminal
TS1
Provision
for
M3
ring
terminal
TDO16AIN
October
200
5
–
Issue 6
7
Triguard
SC300E TDO16AIN 16
-
Channel D/O Termination Card 24Vdc
THEORY OF OPERATION
Figure
2
-
4 shows
a circuit
diagram
of
a typical
digital
output
channel.
Power
supplies
for
the
termination
cards
are
normally
provided
by
a Power
Distribution
Panel
PDD24.
Power
for
th
e digital
output
channels
is
distributed
as
shown
in
Figure
2
-
3 . Soldered
links
LK1
to
LK4
are
normally
present,
and
in
low
load
applications,
external
power
can
be
connected
to
any
one
of
the
four
inputs
FS1
to
FS4.
For
high
load
applications,
or
where
t
he
channel
groups
require
different
supply
voltages,
cut
the
links
and
supply
FS1
to
FS4
individually.
Each
digital
output
channel
is
powered
from
a common
+ve
bus.
An
indicating
fuse
is
fitted
in
the
digital
output
signal
line
to
the
field
device.
The
‘fuse
failed’
output
from
each
fuse
is
connected
to
a common
alarm
bus.
If
any
fuse
fails,
local
indication
is
provided
by
the
illumination
of
the
Fuse
blown
LED
LD1.
A signal
to
operate
a remote
alarm
is
available
at
Alarm
output
PL1.
The
-
ve
bus
may
be
gr
ounded
via
TS1
if
required,
preventing
the
power
supplies
from
‘floating’
when
the
chassis
cable
is
disconnected.
8
TDO16AIN
October
200
5
–
Issue 6
Triguard
SC300E
Figure
2
-
4 Circuit
diagram
showing
a single
channel
NOTE
Current
for
alarm
indication
is
taken
from
the
chassis
module
digital
output
signal.
An
alarm
will
be
signalled
only
when
the
fuse
has
failed
and
this
output
is
high.
Power
distribution
panel
PDD24
has
a Fuse
blown
alarm
indicator
with
provision
for
multiple
inputs.
This
facility
can
be
wired
to
provide
fuse
blown
indication
for
an
entire
cabinet.
TDO16AIN
October
200
5
–
Issue 6
9
Triguard
SC300E TDO16AIN 16
-
Channel D/O Termination Card 24Vdc
SUPPLEMENTARY INFORM
ATION
Dummy loads
Dummy
loads
are
only
to
be
connected
to
outputs
that
are
not
used.
Do
not
connect
a
dummy
load
in
parallel
with
a real
output.
Digital output channel connections
Table
2
-
2
lists
the
digital
output
channel
wiring
connections
and
associated
fuses
for
connector
J1
and
the
screw
terminals.
Pin
J1
-
1a
is
connected
to
the
-
ve
bus
(Figure
2
-
4
).
J1
pins,
other
than
J1
-
1a
and
those
listed
in
Table
2
-
2,
are
not
connected.
Screw
Terminal
DIN41612
Connector
J1
Channel
Digital
output
signal
to
field
device
Field
loop
return
from
field
device
Field
loop
fused
ac/dc
supply
to
chassis
Digital
output
signal
from
chassis
Fuse
Link
position
for
dummy
load
1
1(+)
1(
-)
J1
-
2a
J1
-
2c
F1
JP1
-IN
2
2(+)
2(
-)
J1
-
4a
J1
-
4c
F2
JP2
-IN
3
3(+)
3(
-)
J1
-
6a
J1
-
6c
F3
JP3
-IN
4
4(+)
4(
-)
J1
-
8a
J1
-
8c
F4
JP4
-IN
5
5(+)
5(
-)
J1
-
10a
J1
-
10c
F5
JP5
-IN
6
6(+)
6(
-)
J1
-
12a
J1
-
12c
F6
JP6
-IN
7
7(+)
7(
-)
J1
-
14a
J1
-
14c
F7
JP7
-IN
8
8(+)
8(
-)
J1
-
16a
J1
-
16c
F8
JP
8
-IN
9
9(L)
9(
-)
J1
-
18a
J1
-
18c
F9
JP9
-IN
10
10(L)
10(
-)
J1
-
20a
J1
-
20c
F10 JP10
-IN
11
11(L)
11(
-)
J1
-
22a
J1
-
22c
F11 JP11
-IN
12
12(L)
12(
-)
J1
-
24a
J1
-
24c
F12 JP12
-IN
13
13(L)
13(
-)
J1
-
26a
J1
-
26c
F13 JP13
-IN
14
14(+)
14(
-)
J1
-
28a
J1
-
28c
F14 JP14
-IN
15
15(+)
15(
-)
J1
-
30a
J1
-
30c
F15 JP15
-IN
16
16(+)
16(
-)
J1
-
32a
J1
-
32c
F16 JP16
-IN
10
TDO16AIN
October
200
5
–
Issue 6
Triguard
SC300E
SERVICING
SCOPE
The
TDO16AIN
contains
all
-
passive
circuitry
that
is
extremely
robust.
Servicing
operations
will
therefore
not
normally
extend
beyond
the
replacement
of
blown
fuses.
CAUTION
Before
replacing
a blown
fuse,
ascertain
the
cause
of
failure,
and
take
the
appropriate
remedial
action.
CONFIGURATION
Links
LK1
to
LK4
are
connected
by
default
(see
Figure
2
-
3 ).
If
all
the
links
are
cut,
power
supply
connectors
FS1
to
F
S4
will
feed
individual
digital
output
channel
groups
as
follows:
Table
3
-
1.
Power
supply
connectors
Link
no.
Channels
FS1
Channels
1 to
4
FS2
Channels
5 to
8
FS3
Channels
9 to
12
FS4
Channels
13
to
16
TDO16AIN
October
200
5
–
Issue 6
11
Triguard
SC300E TDO16AIN 16
-
Channel D/O Termination Card 24Vdc
SERVICE
SUPPORT
SPARE PARTS
Spare
parts
and
t
echnical
advice
can
be
obtained
f
rom
your
local
area
offices.
LIST OF SPARES
Circuit
Ref
Part
No
Details
F1
to
F16
380
-
0013
1A
Indicating
fuse
/
