Rockwell Automation T8831 User Manual
SDS-8831
Primary & Hot Spare Modules
Educate
Activ
Health
T8xxx
13579
111315171921232527293133353739Standb2468
10121416182022242628303234363840Educate
Activ
Health
T8xxx
13579
111315171921232527293133353739Standb2468
1012141618202224262830323436384
0
Trusted
TM
Industrial Control System
TrustedTM 40 Channel Analogue Input FTA Non Incendive – T8831
ASSEMBLY
into the metal slot retainer shown in the
illustration at left.
To facilitate the need for on-line
replacement of an unhealthy I/O
module, the interface cable is designed
to provide the user with two different
methods for on-line maintenance. The
first method involves the use of a dual
connector hood. The dual connectors
allocate an adjacent slot in the
Trusted
TM
chassis for a hot-replacement
module. Refer to Figure 1 below for
more details regarding a dedicated
spare slot approach.
The second method of hot replacement
uses a “one-to-many” approach. This
feature is called the SmartSlot Link
(SSL). The SSL furnishes the method
to use a single I/O module slot as a hot
replacement slot. This configuration
reduces I/O chassis space by using a
single slot for hot replacement of all
modules of that type. In this case the I/O
cable has a second socket on the back
of the module end for connecting a
cable to the hot replacement slot.
FEATURES
40 TMR input points
Easy to mount and
Industry standard
Standard DIN rail
Loop current
Small physical size
Low cost
On-board LED for
per module
replace
field device
connections
compatibility
limiting and
dropping resistors
pre-installed
loop power integrity
indication
DESCRIPTION
The 40-channel T8831 Trusted
Termination Assembly (FTA) is the primary
interface between the Trusted
Input module and the field device (wiring) loop.
The model T8831 is designed for use in nonincendive applications. The FTA is supplied
with both 150 loop current and 250
dropping resistors.
The FTA is made up of several components:
the interface cable connector and hood lock,
loop power distribution, dropping resistors, and
field input terminations.
To reduce integration time, the interface cable
which connects the FTA and its I/O module is
pre-assembled and fitted with a pair of
specialized hoods. These hoods are used to
secure the cable in place. The FTA hood fits
TM
Field
TM
TMR Analog
Dual Hood
r
T
u
t
s
e
d
T
M
R
FTA
r
T
u
t
s
e
d
T
M
R
Interface
Cable
Figure 1
Issue 5 Jan 2006
SDS-8831
Trusted
TM
Industrial Control System
TrustedTM TMR Field Termination Assembly – Non-Incendive Analog Input-T8831
BLOCK DIAGRAM
(SmartSlot Link Connector is unused)
Dual Loop Power
+V 1
+
V 2
0
To I/O
Module
V
T
B1
S
K1
SK2
SmartSlot Link Connector
Channels 0 & 41 reserved for internal use
TB3
Dropping
Resistor
Typical
Analog Input
Non-incendive
Channel Schematic
Current L imiting
Resistor
TB2
1
2
3 - 40
Field
I
nputs
Figure 2
ELECTRICAL SPECIFICATION
Number of Inputs
Internal Use Inputs
Type of Input Terminals
Type of Power Terminals
Acceptable Wire Sizes
UL 30-12 AWG 15A 300V
CSA 28-12 AWG 10A 300V
Din Rail Compatibility
Testing
Intrinsic Safety
Dropping Resistor
Current Limiting
40
2
MKKDS 3
MVSTBR 2.5
EN 50022 NS 35/7.5
NS 35/15 NS 32
100% electrical (continuity and
short-circuit)
External barrier
250E 0.5W
On-board 150E 3W resistor
MECHANICAL
SPECIFICATION
Dimensions (HxWxD):
335mm x 111mm x 51mm
(13.2ins x 4.4ins x 2ins)
Weight:
0.9kg (2.0lbs)
ENVIRONMENTAL
Operating Temperature
-5°C to 60°C
(23°F to 140°F)
Operating Humidity:
5 to 95%, non-condensing
Vibration:
10 to 57Hz ±0.075mm
57 to 150Hz 1.0g
Shock:
15g, ½ sine wave, 11ms
EMI (IEC 801):
ESD
Air discharge to 15kV
Contact discharge to 8kV
Radiated Fields
10V/m, 27MHz to 500MHz
Transients and Bursts
2kV, 2.5kHz for t=60 seconds
ICS Triplex
SDS-8831 Trusted 40 Channel Analogue Input FTA Non Incendive 05.doc
Technical data sheets are intended for
information and guidance. The Company
has a policy of continual product
development and improvement.
Specifications are subject to change
without notice. For latest information, visit
our Websi te:- www.icstr iple x.com
Loading...