ControlNet Repeaters
3
Rockwell Automation Publication 1786-PC001B-EN-P - January 2015
European Hazardous Location Approval
The following applies to products marked
,
II 3 G: Such modules:
• Are Equipment Group II, Equipment Category 3, and comply with the Essential Health and Safety Requirements
relating to the design and construction of such equipment given in Annex II to Directive 94/9/EC. See the EC
Declaration of Conformity at
http://www.rockwellautomation.com/products/certification
for details.
• The type of protection for the 1786-RPA and 1786-RPCD, is "Ex nA IIC T5 Gc" according to EN 60079-15 and comply to
Standards: EN 60079-0:2012, EN 60079-15:2010, reference certificate number SIRA14ATEX4171X.
• The type of protection for the 1786-RPFM and 1786-RPFS, is "Ex nA op is IIC T5 Gc" according to EN 60079-15 and
comply to Standards: EN 60079-0:2012, EN 60079-15:2010, EN60079-28:2007, reference certificate number
SIRA14ATEX4171X.
• Are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air are unlikely to
occur, or are likely to occur only infrequently and for short periods. Such locations correspond to Zone 2 classification
according to ATEX directive 1999/92/EC.
IECEx Hazardous Location Approval
The following applies to products marked IECEx:
• Such modules are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air are
unlikely to occur, or are likely to occur only infrequently and for short periods. Such locations correspond to Zone 2
classification to IECEx 60079-0.
• The type of protection for the 1786-RPA and 1786-RPCD, is "Ex nA IIC T5 Gc" according to IEC 60079-15.
The type of protection for the 1786-RPFM and 1786-RPFS, is "Ex nA op is IIC T5 Gc" according to IEC 60079-15.
• Such modules comply to Standards IIEC 60079-0:2011 Ed. 6, IEC 60079-15:2010 Ed. 4, IEC 60079-28:2007 Ed. 1.0,
reference IECEx certificate number IECEx SIR 14.0048X.
ATEX and IECEx Special Conditions for Safe Use
Mount the 1786-RPA/B Repeater Adapter Module
This section explains how to mount the 1786-RPA/B repeater adapter module.
Follow these steps to mount the 1786-RPA/B module.
1.Position the repeater adapter module on the 35 x 7.5 mm
(1.4 x 0.3 in.) DIN rail (Allen-Bradley part number 199-DR1)
at a 30
°
angle.
2.Hook the lip on the rear of the 1786-RPA/B repeater
adapter module onto the top of the DIN rail, and rotate the
repeater adapter module onto the rail.
3. Press the repeater adapter module down onto the DIN rail until flush.
When the locking tab snaps into position, the repeater adapter module is locked to the DIN rail.
If the repeater adapter module does not snap into position, use a screwdriver or similar device to move the locking tab
down while pressing the repeater adapter flush onto the DIN rail.
4. Release the locking tab to lock the adapter in place.
If necessary, push up on the locking tab to lock.
5. Once the repeater adapter module is attached to the DIN rail, slide the repeater modules to the left to mate with the
repeater adapter module.
6. Attach the DIN rail locks to the left side of the repeater adapter module and the right side of the attached modules to
lock the repeater adapter module and modules in place.
7. Repeat steps 1…6 for each of the two DIN rail locks.
8. Tighten the two screws on the DIN rail lock to a torque of 1.1 N•m (9…11 lb•in).
9. Wire the repeater adapter module.
10. Terminate any unused coax ports by connecting a 75
Ω
terminator to the unused BNC connector.
One 75
Ω
terminator is shipped with the repeater adapter module.
Wire the 1786-RPA/B Repeater Adapter Module
This section describes how to wire your module.
1. Make sure you have obtained the following items before you begin to wire the module:
• Two lengths of 0.21…3.3 mm
2
(24…12 AWG) wire
• Wire
stripping
tool
• Small,
flathead
screwdriver
2. Strip about 7 mm (0.28 in.) of insulation from the end of each wire.
ATEX and IECEx Hazardous Location Conformity
Model
Protection Type
ATEX Certificate
IECEx Certificate
1786-RPA
Ex nA IIC T5 Gc
Sira 14ATEX4171X
IECEx SIR 14.0048X
1786-RPCD
Ex nA IIC T5 Gc
Sira 14ATEX4171X
IECEx SIR 14.0048X
1786-RPFM
Ex nA op is IIC T5 Gc
Sira 14ATEX4171X
IECEx SIR 14.0048X
1786-RPFS
Ex nA op is IIC T5 Gc
Sira 14ATEX4171X
IECEx SIR 14.0048X
1786-RPFRL
—
—
—
1786-RPFRXL
—
—
—
WARNING:
• This equipment is not resistant to sunlight or other sources of UV radiation.
• This equipment must be mounted in an ATEX/IECEx Zone 2 certified enclosure with a minimum ingress
protection rating of at least IP54 (as defined in EN/IEC 60529) and used in an environment of not more
than Pollution Degree 2 (as defined in EN/IEC 60664-1) when applied in Zone 2 environments. The
enclosure must be accessible only by the use of a tool.
• This equipment must be used within its specified ratings defined by Rockwell Automation.
• Provision must be made to prevent the rated voltage from being exceeded by transient disturbances of
more than 140% of the rated voltage when applied in Zone 2 environments.
• Secure any external connections that mate to this equipment by using screws, sliding latches, threaded
connectors, or other means provided with this product.
• Do not disconnect equipment unless power has been removed or the area is known to be
nonhazardous.
• When installed in a hazardous or non-hazardous area, the module must be installed in a
suitably-certified (for example Ex e or Ex nA) enclosure providing a minimum ingress protection of IP54.
• When installed in a non-hazardous area, the module can alternatively be installed in a controlled
environment that provides equivalent protection.
• The installer must verify that the service temperature of the suitably-certified enclosure and the
‘maximum ambient’ temperature of the module when installed is not exceeded.
ATTENTION:
This product is grounded through the DIN rail to chassis ground. Use zinc plated
yellow-chromate steel DIN rail to assure proper grounding. The use of other DIN rail materials (for example,
aluminum or plastic) that can corrode, oxidize, or are poor conductors, can result in improper or intermittent
grounding. Secure DIN rail to mounting surface approximately every 200 mm (7.8 in.) and use end-anchors
appropriately.
IMPORTANT
Horizontal mounting is preferred. We recommend that the 1786-RPA/B module be mounted at the top if
vertical mounting is chosen.
WARNING:
Removal and insertion under power (RIUP) is not supported. This module must be powered
down while connecting and disconnecting it from any interconnected modules.
If you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause
an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
ATTENTION:
Make certain that the repeater adapter and modules are secured together with DIN rail locks
on either side. Failure to do so can result in the loss of communication and/or cause damage to the modules.
IMPORTANT
The total number of modules that can be attached to the 1786-RPA/B repeater adapter cannot exceed
four or the total power consumption of the modules cannot exceed 8 W or 1.6 A @ 5V DC, whichever
comes first.
The 1786-RPFRL/B and 1786-RPFRXL/B modules require 570 mA each; therefore you can attach only two
of these modules to a 1786-RPA/B repeater module. The maximum current draw at
5V DC is 400 mA for the 1786-RPFM module, 300 mA for the 1786-RPFS module, and 400 mA for the
1786-RPCD module.
If you exceed the module or power limit, you can cause damage to the modules and repeater adapter.
IMPORTANT
For proper operation when using a 1786-RPFRXL/B module with a 1786-RPCD module attached to the
same 1786-RPA/B repeater module, you must install any 1786-RPCD module to the left side of any
1786-RPFRL or 1786-RPFRXL/B repeater module.
WARNING:
An electrical arc can occur under the following circumstances:
• when you connect or disconnect the removable terminal block (RTB) with field side power applied
• if you connect or disconnect the communications cable with power applied to this module or any device
on the network
This could cause an explosion in hazardous location installations. Be sure that power is removed or the area
is nonhazardous before proceeding.
Position the DIN rail lock to the DIN rail.
Press the DIN rail lock down
onto the DIN rail.
Tighten the screws.