Chapter
2
Installation
Relay Arrangement
Mount on DIN Rail
Figure 2
shows a typical setup. The ENETR interface must be at the leftmost position. Up to a maximum of six GSR safety relays can be mounted to the right of the ENETR interface. When OLink 3.x devices (for example, Guardmaster
DG safety relays) are used, they must be located next to the ENETR interface.
The other OLink 2.0 relays can be mounted in any order. The DG safety relay has both OLink 2.0 and 3.x, so it can pass information from OLink 2.0 devices to the
ENETR interface.
Figure 2 - Typical Arrangement of ENETR Interface and GSR Relays
A1 A2
LINK1
MS
LNK1
LNK2
NS
ENETR
C
A
B
S12 S22 S32 S42
A1 A2 S11 S21
S12 S22 S32 S42
A1 A2 S11 S21
PWR/Fault
OUT
IN 1
IN 2
OUT X
IN X
Reset
FB
PWR/Fault
OUT
IN 1
IN 2
OUT X
IN X
Reset
FB
Config/Set
DG
Reset
Sel./Save
8
9
7
6
0
5
1
2
4
3
Time
X1 X2 X3 X4
13 14 23 24
Config/Set
DG
Reset
Sel./Save
7
8
9
6
0
5
1
2
4
3
Time
X1 X2 X3 X4
13 14 23 24
LINK2
S12 S22 S32 S42
A1 A2 S11 S12
PWR/Fault
S12 S22 S32 S42
A1 A2 S11 S12
PWR/Fault
IN1
IN2
Logic IN
OUT
LOGIC
8
7
6 5
0 1
2
3
4
IN1
IN2
Logic IN
OUT
LOGIC
8
7
6 5
0 1
2
4
3
A1
33 34 43 44
A1 A2 S11 S12
PWR/Fault
Logic IN
OUT
33 34 43 44
37 38 47 48
A1 A2 B1 B2
PWR/Fault
B1
Logic IN
OUT
RANGE
9
8
7
TIME
6
10
9
8
7
0
4
1
2
3
5
6
1
2
5
3
4
13 14 23 24
DI
L12 L11 Y32 S34
13 14 23 24
34 44 14 24
DIS
L12 L11 Y32 S34
34 44 14 24
13 14 23 24
EM
L12 L11 X32
13 14 23 24
EMD
L12 L11 X32
17 18 27 28
Locate DG safety relays closest to the ENETR interface
Max separation between relays is 5 mm (0.2 in.).
Follow these steps to mount the ENETR interface on a DIN rail.
1.
Position the adapter vertically above an IEC standard (35x7.5x1 mm
[1.38x0.3x0.04 in.]) DIN rail at a slight angle (DIN rail catalog number
199-DR1; 46277-3).
DIN Rail
DIN Rail Latch
2.
Press down firmly to install the interface on the DIN rail.
To remove your interface from the DIN rail, pry the DIN rail latch downwards until there is separation from the latch and the DIN rail.
Rockwell Automation Publication 440R-UM009C-EN-P - July 2019 13
Chapter 2 Installation
Removable Terminal Block
The ENETR interface has one removable terminal block. Use a screwdriver (or
your thumb) as a lever to remove the blocks. As shown in Figure 3
, insert the screwdriver into the slot and pry up.
Figure 3 - Terminal Block Removal
Power Connections
The ENETR interface requires only a 24V DC connection and common.
Connect 24V DC to terminal A1 and the 24V common to terminal A2 as shown
in Figure 4
.
The 24V supply must provide power to the ENETR interface and the GSR relays that it is monitoring. If a power cycle is required to clear a fault on a GSR relay, then power also has to be cycled to the ENETR interface to re-establish the optical link communications. Having one power supply eliminates the need for two power cycles to clear a fault and re-establish the optical communications.
Figure 4 - Power Connections
Ethernet
RJ45 connector
A1 = +24V DC Supply
A2 = 24V Common
TOP VIEW
Wire Size
Each terminal accommodates copper wire with size from 0.14…2.5 mm2
(26…14 AWG). Use copper wire that withstands 60…75 °C (140…167 °F).
Each terminal can accommodate up to two wires.
Terminal Torque
Torque terminals to 0.4 N•m (4 lb•in).
14 Rockwell Automation Publication 440R-UM009C-EN-P - July 2019
Network Connections
Installation Chapter 2
The ENETR interface has two network connections, using standard RJ45 connectors. The connection that is labeled LNK1 is on the top of the housing, and the LNK2 connection is on the bottom of the housing. Connection can be made to either LNK1 or LNK2. The network connection is a repeater; the signal
coming into one Link is repeated at the other Link. Figure 5
shows an example of a system with both LNK1 and LNK2 connections.
Figure 5 - Example Showing Link 1 and Link 2 Network Connections
Enclosure Considerations
Most applications require installation in an industrial enclosure to reduce the effects of electrical interference and environmental exposure. Pollution Degree 2 is an environment where normally only non-conductive pollution occurs except that occasionally temporary conductivity that is caused by condensation can be expected. Overvoltage Category II is the load level section of the electrical distribution system. At this level, transient voltages are controlled and do not exceed the impulse voltage capability of the product insulation.
This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in
IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating. This equipment is considered Group 1, Class A industrial equipment according to
IEC/CISPR 11. Without appropriate precautions, there can be difficulties with electromagnetic compatibility in residential and other environments due to conducted and radiated disturbances.
This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that are present and appropriately designed to help prevent personal injury that results from accessibility to live parts. The enclosure must have suitable flameretardant properties to help prevent or minimize the spread of flame, complying with a flame spread rating of 5VA, V2, V1, V0 (or equivalent) if non-metallic.
The interior of the enclosure must be accessible only by use of a tool. Subsequent sections of this publication contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.
Other helpful publications can be found in Additional Resources on page 6
.
Rockwell Automation Publication 440R-UM009C-EN-P - July 2019 15
Chapter 2 Installation
Preventing Excessive Heat
For most applications, normal convective cooling keeps the ENETR interface and relays within the specified operating range. Confirm that the specified temperature range is maintained. Spacing of 50.8 mm (2 in.) above, below, and in front of components within an enclosure is usually sufficient for heat dissipation.
In some applications, other equipment inside or outside the enclosure produce a substantial amount of heat. In this case, place blower fans inside the enclosure to help air circulation and to reduce “hot spots” near the ENETR interface and safety relays.
Additional cooling provisions might be necessary when high ambient temperatures are encountered. Do not bring in unfiltered outside air. Place the controller in an enclosure to help protect it from a corrosive atmosphere.
Harmful contaminants or dirt could cause improper operation or damage to components. In extreme cases, the use air conditioning to help protect against heat buildup within the enclosure may be required.
16 Rockwell Automation Publication 440R-UM009C-EN-P - July 2019
