For your safety
CX9020
8
Version: 2.0
2
For your safety
Read the chapter on safety and follow the instructions in order to protect from personal injury and damage to
equipment.
Limitation of liability
All the components are supplied in particular hardware and software configurations appropriate for the
application. Unauthorized modifications and changes to the hardware or software configuration, which go
beyond the documented options, are prohibited and nullify the liability of Beckhoff Automation GmbH & Co.
KG.
In addition, the following actions are excluded from the liability of Beckhoff Automation GmbH & Co. KG:
• Failure to comply with this documentation.
• Improper use.
• Use of untrained personnel.
• Use of unauthorized replacement parts.
2.1
Intended use
The CX9020 Embedded PC is a control system designed for installation on a DIN rail in a control
cabinet or
terminal box. The Embedded PC series is used in conjunction with Bus Terminals for recording digital or
analog signals
from sensors and transferring them to actuators or higher-level controllers.
The Embedded PC is designed for a working environment that meets the requirements of protection class
IP20. This involves finger protection and protection against solid foreign objects up to 12.5 mm, but not
protection against water. Operation of the devices in wet and dusty environments is not permitted, unless
specified otherwise. The specified limits for electrical and technical data must be adhered to.
Potentially explosive atmospheres
Device modification CX2900-0107 is mandatory for operation of the Embedded PC in potentially explosive
atmospheres, zone 2/22. The device modification includes a factory-installed retainer bracket for
mechanically securing the plug connectors.
The device modification is mandatory for operating the Embedded PC in the following potentially explosive
atmospheres:
1. For Zone 2 atmospheres in which gas is present as a combustible material. Zone 2 means that an ex-
plosive atmosphere does usually not occur during normal operation, or only for a short time.
2. For Zone 22 atmospheres in which dust is present as a combustible material. Zone 22 means that an
explosive atmosphere in the form of a cloud does usually not occur during normal operation, or only
for a short time.
The Embedded PC must be installed in a housing, which ensures protection class IP 54 for gas according to
EN 60079-15. A housing with protection class IP 54 is required for non-conductive dust. IP 6X is required for
conductive dust according to EN 60079-31.
Improper use
The Embedded PC is not suitable for operation in the following areas:
• In potentially explosive atmospheres, the Embedded PC may not be used in other zones except for
2/22 and not without a suitable housing.
• Areas with an aggressive environment, e.g. aggressive gases or chemicals.
• Living areas. In living areas, the relevant standards and guidelines for interference emissions must be
adhered to, and the devices must be installed in housings or control boxes with suitable attenuation of
shielding.
Summary of Contents for CX9020
Page 1: ...Manual CX9020 Embedded PC 2 0 2019 04 09 Version Date ...
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