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參數(shù)資料
| 型號： | F880-PC |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-segment redundant fieldbus power system for use with Yokogawa CENTUM 3000 R3 Control System |
| 中文描述： | 8段冗余與橫河百仁3000 R3采用現(xiàn)場總線控制系統(tǒng)的電力系統(tǒng) |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 162K |
| 代理商： | F880-PC |
8-segment redundant fieldbus power
system for use with Yokogawa
CENTUM 3000 R3 Control System
The F880 fieldbus power system
is designed
to provide redundant power for eight F
OUNDATION
fieldbus
TM
H1 segments when used with Yokogawa
ALF111 fieldbus cards. The F880 module carrier has
system connectors for direct connection to two
redundant pairs of fieldbus cards using Yokogawa
AKB336 cables. Power for the fieldbus segments is
provided by two F801 power modules operating in
a redundant configuration. Failure alarms, galvanic
isolation, power conditioning and segment
termination are incorporated into each F801
module. In simplex applications, a single F801
module may be used. Termination of the fieldbus
segments is automatically maintained when single or
redundant F801 modules are fitted.
For extreme reliability
, the module carrier has
no components and only provides interconnections
between the power modules and external
connections. It is supported in a rigid metal frame
that protects the circuit board from mechanical
damage. Secure DIN-rail mounting is provided by
integrated fixings.
Each F801 module monitors
the output of the
eight fieldbus segments and indicates an alarm by
means of a built-in, normally closed relay if any of the
segments is shorted or below the minimum output
voltage threshold. Failure of either of the bulk power
input supplies is also annunciated. The alarm contacts
are volt-free and galvanically isolated from other
circuitry. Connections to the alarm relays are made via
terminals on the F880-CA carrier. A separate alarm
module is not required for this function. LED indicators
also show the status of each F801 module and the
eight individual segments. In normal operation, each
segment LED is lit, showing that the segment is
powered. If a segment is shorted, this LED is
extinguished, and the module Alarm LED is lit.
A separate physical layer diagnostics module
may be installed on the carrier to automatically collect
and distribute additional diagnostic information for
each of the eight fieldbus segments.
The F801 module provides galvanic
isolation
between the 24V DC input power and the
fieldbus segments, as recommended by the
IEC61158-2 fieldbus standard and the F
IELDBUS
Foundation
FF-831 validation test for power
conditioners.There is also galvanic isolation between
the fieldbus segments, thereby preventing multiple
segment failures due to ground faults on more than
one segment. Each segment has its own fieldbus
power conditioner and current limitation.
Redundant 24V DC
(nom.) input power is
connected to the F880 carrier using two-part
pluggable connectors. Field wiring connections are
available with either pluggable screw terminals (F880-
PS) or pluggable spring clamp terminals (F880-PC).
F
OUNDATION
fieldbus
is a trademark of Fieldbus Foundation
, Austin, Texas.
Low power dissipation
Passive module carrier
On-line diagnostics option
Redundant power & conditioning
Integrated redundant fieldbus
power for ALF111 F
OUNDATION
fieldbus
cards
High-density, compact design
Fully isolated
F880
EUROPE (EMEA)
AMERICAS
ASIA PACIFIC
E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.com
Tel: +44 (0)1582 723633
Tel: +1 603 926 0090
Fax: +44 (0)1582 422283
Fax: +1 603 926 1899
Dec 2005
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