ABB ACS800 I/O Modules and Termination Units
PR electronics 4501 Display programming front
Product Overview
The S800 I/O provides easy installation of the I/O modules and process cabling.It is highly modularized and flexible so that the I/O modules can be combined to suit many applications, including most types of signals, HART and Intrinsic Safety Interface. The S800 I/O modules and a Fieldbus Communication Interface (FCI) are combined to form an I/O Station. The S800 I/O can be used in both single and redundant applications.In general, all S800 units are G3 compliant. G3 compliant modules withstand more severe environmental conditions according to ISA-S71.04. The following S800 units are G2 compliant - SD821, SD822, SD823, SD831, SD832, SD833, SD834,SS822, SS832, TB811 and CI830. G3 compliant versions of SD822 and SS822 are also available (refer to SD822Z and SS822Z).All modules are marked with a bar code that shows the serial number, article ID and the product revision number. A separate bar code strip is also enclosed along with the module for placing on the module, if needed. The bar code is of type
Bar-code 128.For more information, refer to S800 I/O Getting Started(3BSE020923*) manual.
The S800 I/O can be categorized into:
Module Termination Units (MTU)
I/O modules – S800 I/O modules and S800L I/O modules.
S800 I/O modules are designed to be used together with a Module Termination Unit.
S800L I/O modules are designed to be directly mounted on a standard DIN rail.
The module also contains terminals for connections.
ABB ACS800 I/O Modules and Termination Units
Module Termination Units and Terminal Units
The Module Termination Units (MTU) are passive base units used to house the I/O modules. They contain the process wiring terminals and a section of the ModuleBus.The Module Termination Units (MTU) distributes the ModuleBus to the I/O module and to the next MTU. It also generates the correct address to the I/O module by shifting the outgoing position signals to the next MTU.
Two mechanical keys are used to configure the MTU for different types of I/O modules. This is only a mechanical configuration and it does not affect the functionality of the MTU or the I/O module. Each key has six positions, which gives a total number of 36 different configurations. The configuration can be changed with a screwdriver.The MTU can be mounted on a standard DIN rail. It has a mechanical latch that locks the MTU to the DIN rail. The latch can be released with a screwdriver.The MTU has a mechanical locking mechanism that locks the module in its position. This mechanism also gives the signal BLOCK to the I/O module that keeps the module in its init state until it is locked in its position.
The top part of the MTU can be removed to replace the termination board even with the system running. Such a need can be caused by a damaged terminal screw.The MTUs are available in tree versions (Compact, Extended and Redundant).The Compact MTU version typically provides for a compact installation of the I/O modules using 1 wire connections.The Extended MTU version provides for a more complete installation on the MTU,including 3 wire connection, fuses and field circuit power distribution. See Figure 3 and Figure 4 for an illustration of the MTUs together with the I/O modules.The Redundant MTUs are used in redundant I/O applications. There is space on the MTU for two I/O modules on separate ModuleBuses. See Figure 5.
ABB ACS800 I/O Modules and Termination Units
TU842 Redundant Horizontal MTU for 50 V Applications
The TU842 is a 16 channel redundant module termination unit. The TU842 has
three rows of terminals for field signals and process power connection.It is intended
for mounting on a horizontal DIN rail. There is space on the MTU for two I/O
modules connected to separate ModuleBuses.
TU843 Redundant Vertical MTU for 50 V Applications
The TU843 is a 16 channel redundant module termination unit. The TU843 has
three rows of terminals for field signals and process power connection. It is intended
for mounting on a vertical DIN rail. There is space on the MTU for two I/O modules
connected to separate ModuleBuses.
TU844 Redundant Horizontal MTU for 50 V Applications
The TU844 is a 8 channel redundant module termination unit. The TU844 has two
rows of terminals for field signals and process power connection. It is a intended for
mounting on a horizontal DIN rail. The MTU has place for 8 replaceable shunt
sticks (i.e one shunt stick per channel) for conversion of the input current signal to a
voltage signal. There is space on the MTU for two I/O modules connected to
separate ModuleBuses.
TU845 Redundant Vertical MTU for 50 V Applications
The TU845 is a 8 channel redundant module termination unit. The TU845 has three
rows of terminals for field signals and process power connection. It is intended for
mounting on a vertical DIN rail. The MTU has place for 8 replaceable shunt sticks
(i.e one shunt stick per channel) for conversion of the input current signal to a
voltage signal. There is space on the MTU for two I/O modules connected to
separate ModuleBuses.
ABB ACS800 I/O Modules and Termination Units
TU850 Extended MTU, Individually Current Limited and Disconnectable per
Channel for 50 V Applications
The TU850 is a 16 channel extended module termination unit. TU850 has two rows
of terminals for field signals and process power connection. Each channel has one
current limited sensor/transmitter power outlet terminal and one signal terminal.
Process voltage can be connected to two individually isolated groups.
ABB ACS800 I/O Modules and Termination Units
Contact details
HONGKONG XIEYUAN TECH CO., LIMITED
Telephone:86-027-85887732
Mobile :86-15717178751(Whatapp&Wechat is available)
Fax:86-027-85309780
Skype:Jackie@hkxytech.com
E-mail:Jackie@hkxytech.com
