ABB TDO16AIN User manual

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
• Ove rvoltage 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 ageneral 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 4Power Distribution Panel User Manual
008 - 5150 MDO64BNS 64 - Channel Digital Output Module User Manual
008-5135

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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 aring terminal.
Allows
the common 0V supply bus to be
grounded
via a10k 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 aring terminal.
Allows
the field 0V to be commoned for
transient
suppression protection.
Overall size (mm)
Overall
size (inches)
162L x125W x107H
6.4L x4.9W x4. 2H
Weight 0.37kg

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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 21994
Vibration/Shock: Tested and certified to IEC 1131 - Part 21994
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.

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TECHNICAL DESCRIPTIO N
PHYSICAL
The TDO16AIN comprises aPCB assembly mounted in amoulded carrier that can be snapped
onto all commercially available styles of DIN EN mounting rail. Connection to the chassis
backplane is via amulticore cable terminated at either end by aDIN41612 connector. Figure 2 -
2shows the TDO16AIN with the DIN4 1612 connector attached and mounted on rail EN 50022
type NS 35/5.
Figure 2 - 1General view and component layout

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Figure 2 - 2Leading dimensions and mounting schematic

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Figure 2 - 3Power distribution system
EXTERNAL CONNECTIONS
Table 2 - 1.
Fixed terminal Details
Field terminals 1to 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

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Triguard SC300E TDO16AIN 16 - Channel D/O Termination Card 24Vdc
THEORY OF OPERATION
Figure 2 - 4shows acircuit diagram of atypical digital output channel.
Power supplies for the termination cards are normally provided by aPower Distribution Panel
PDD24.
Power for th edigital 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 acommon +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 acommon alarm bus. If any fuse fails, local indication is provided by the
illumination
of the Fuse blown LED LD1. Asignal to operate aremote 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.

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Figure 2 - 4Circuit diagram showing asingle 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 aFuse blown alarm indicator with provision for multiple
inputs.
This facility can be wired to provide fuse blown indication for an entire cabinet.

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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 areal 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

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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 ablown 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 1to 4
FS2 Channels 5to 8
FS3 Channels 9to 12
FS4 Channels 13 to 16

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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