Allen-Bradley ControlNet 1786-RPFM Manuale utente
1786-5.1
1 — February 1998
0
ControlNet Modular Repeater
Medium-distance Fiber Module
(Cat. No. 1786-RPFM)
Use this document as a guide when you install a ControlNetrepeater
fiber module for medium distances:
•To install the module, read these sections:
Section Page
About The Fiber Module 2
European Union Directive Compliance 3
Mounting The Fiber Module 4
Wiring The Fiber Module 8
CSA Hazardous Location Approval 12
•For this information, refer to these sections:
Section Page
Indicators 10
Related Publications 11
Mounting Dimensions 11
Specifications 14
Installation Instruction
s
Installation Instruction
s
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About The Fiber Module
Use this module when a medium-distance (distances of 3000m/9843ft)
fiber link is required between two ControlNet products. This fiber link
provides ground isolation between nodes and is less susceptible to noisy
environments than traditional cooper media.
Note: The distance that can be supported is dependent on the quality of
the fiber, number of splices, and connectors. The total loss of the
fiber link must be less than 13.3 dB. Typical systems of greater
than 3000m are possible.
The module provides:
•two fiber channels
•activity LED indicators for each fiber channel
The figure below identifies the components of the module:
Indicators
Channel
1 fiber port
Module locking tab
Channel 2 fiber port
Right–side
backplane connector with
protective cover
The left side of the module (not shown here) also contains a backplane connector
.
Protective caps
30042–M
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European Union Directive Compliance
If this product has the
ÎÎ
Î
Î
ÎÎ
Î
Î
mark, it is approved for installation within
the European Union and EEA regions. It has been designed and tested to
meet the following directives.
EMC Directive
The module is tested to meet Council Directive 89/336 Electromagnetic
Compatibility (EMC) using a technical construction file and the
following standards, in whole or in part:
•EN 50081-2 EMC – Generic Emission Standard,
Part 2 – Industrial Environment
•EN 50082-2 EMC – Generic Immunity Standard,
Part 2 – Industrial Environment
The module described in this manual is intended for use in an
industrial environment.
Low Voltage Directive
The module is also designed to meet Council Directive 73/23 Low
Voltage, by applying the safety requirements of EN 61131–2
Programmable Controllers, Part 2 – Equipment Requirements and Tests.
For specific information that the above norm requires, see the
appropriate sections in this manual, as well as the following
Allen-Bradley publications:
•Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1
•Guidelines for Handling Lithium Batteries, publication AG-5.4
•Automation Systems Catalog, publication B111
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Mounting The Fiber Module
To mount the module on the DIN rail:
1. Position the module on a 35 x 7.5mm DIN rail (Allen-Bradley part
number 199-DR1; 46277-3; EN 50022) at a 30oangle.
30074–M
2. Hook the lip on the rear of the module onto the top of the DIN rail,
and rotate the module onto the rail.
30074–M
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3. Press the module down onto the DIN rail until flush.
The locking tab should snap into position and lock the module to the
DIN rail.
4. If the module does not snap into position, use a screwdriver or similar
device to move the locking tab down while pressing the module flush
onto the DIN rail. Release the locking tab to lock the module in place.
If necessary, push up on the locking tab to lock.
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5. Remove the protective backplane cap as shown in “Removing the
Protective Caps” on page 7.
6. Once attached to the DIN rail, slide modules to the left to mate with
the repeater adapter or another repeater module.
30043–M
!ATTENTION: Make certain that the adapter and repeater
modules are secured together with DIN rail anchors.
Failure to do so may result in the loss of communications
and/or cause damage to the modules.
The total number of modules that can be attached to the repeater adapter
can not exceed four or the total power consumption of the modules can
not exceed 1.6A @ 5VDC, whichever comes first.
Important: If you exceed the module or power limit, you may cause
damage to the repeater adapter and modules.
Important: If this is the right–most module, a DIN rail latch must be
used on the right–side of the fiber module.
7. Connect the module wiring as shown in “Wiring The Fiber Module”
on page 8.
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Removing the Protective Caps
1. Remove the protective caps from the fiber channels that will be used.
2. Save the caps for future use.
Protective
backplane
cap
Protective
cap
DIN rail
The left side of the module (not shown here) also contains a backplane connector
30049–M
If: Then:
a channel is not going to be used keep protective caps on channels to protect
unit from dust.
another module will be connected to the right
backplane connector remove the protective backplane cap and save
cap for future use.
a module will not be connected to the right
backplane connector leave the backplane cap attached.
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Wiring The Fiber Module
If only one channel is wired, you can use Channel 1 or Channel 2.
To wire the module for Channel 1:
1. Connect to Receive ST.
a. Align the knob of the ST cable connector with the groove of the
ST module connector, and insert the connector into A.
AB(transmit)
(receive)
Channel
1
Channel 2
30044–M
b. Twist the Receive ST connector until the bayonet lug is locked
into place.
2. To connect to Transmit ST into B, repeat Step 1.
"
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To wire the module for Channel 2:
1. Repeat the steps for Channel 1 and refer to the following figure.
OR
1786–RPA
A
B
CH1 CH2
A B
1786–RPFM 1786–RPA
A B
CH1 CH2
A B
1786–RPFM
Important: Be sure the fiber connected to A(receive) on one
1786–RPFM is connected to B(transmit) on the other
1786–RPFM. You can use Channel 1 or Channel 2 on
either module.
Important: Never connect the fiber cable between Channel 1 or
Channel 2 on the same repeater module, even between
channels from different modules on the same repeater.
!Warning: Do not look directly into the fiber ports.
Light levels may cause damage to eyesight.
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Indicators
The figure below identifies indicators on the module:
Channel
1 status
Channel 2 status
The table below defines Channel 1 and Channel 2 (individually) status
indications:
Status Indicator Probable Cause
Off No power or module is faulted
Green Channel operational
Flashing Green/Off No data activity on associated channel
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