14
Rockwell Automation Publication 440R-UM013E-EN-P - March 2017
Chapter 2
Installation
Spacing
Safety relays can be mounted directly next to other safety relays. When the
EtherNet/IP module is used, the safety relay must be mounted within
10 m
m
(0.4 in.) of its neighboring module to maintain effective communication.
Maintain a space of 50.8 mm (2 in.) above, below, and in front of the relay for
adequate ventilation.
Removable Terminals
Safety relays have removable terminals to ease wiring and replacement.
Figure 4 - Removable Terminals
1. Insert the tip of a small screwdriver into the slot near the terminal
screws.
2. To unlock the terminal block, rotate the screwdriver.
The terminal block can then be removed from the housing.
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 shall 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 may be difficulties
with electromagnetic compatibility in residential and other environments due
to conducted and radiated disturbances.
1
2
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Страница 12: ...12 Rockwell Automation Publication440R UM013E EN P March 2017 Chapter 1 Overview Notes...
Страница 16: ...16 Rockwell Automation Publication440R UM013E EN P March 2017 Chapter 2 Installation Notes...
Страница 34: ...34 Rockwell Automation Publication440R UM013E EN P March 2017 Chapter 3 Power Ground and Wire Notes...
Страница 40: ...40 Rockwell Automation Publication440R UM013E EN P March 2017 Chapter 4 Configuration Notes...
Страница 50: ...50 Rockwell Automation Publication440R UM013E EN P March 2017 Chapter 7 EMD Safety Relay Timing Functions Notes...
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