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UK
CompactModule Metall CR2031
3
1 Preliminary note
Technical data, approvals, accessories and further information at www�ifm�com�
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Instructions
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Cross-reference
Important note
Non-compliance may result in malfunction or interference�
Information
Supplementary note�
2 Safety instructions
This description is part of the unit� It contains texts and drawings concerning the
correct handling of the module and must be read before installation or use�
Observe the information of the description� Non-observance of the notes, opera-
tion which is not in accordance with use as prescribed below, wrong installation or
handling can result in serious harm concerning the safety of persons and plant�
The instructions are for authorised persons according to the EMC and low volt-
age guidelines� The unit must be installed and commissioned by a skilled electri-
cian (programmer or service technician)� The device may only be installed, con-
nected and commissioned by qualified personnel�
Disconnect the device externally before doing any work on it� If necessary, also
disconnect separately supplied output load circuits�
If the unit is not supplied by the mobile on-board system (12/24 V battery opera-
tion) it must be ensured that the external voltage is generated and supplied ac-
cording to the criteria for safety extra-low voltage (SELV) as this is supplied without
further measures to the connected controller, the sensors, and the actuators�
The wiring of all signals in connection with the SELV circuit of the unit must also
comply with the SELV criteria (safe extra-low voltage, safe electrical separation
from other electric circuits)�
If the supplied SELV voltage has an external connection to ground (SELV be-
comes PELV) the responsibility lies with the user and the respective national
regulations for installation must be complied with� All statements in these operating
instructions refer to the unit the SELV voltage of which is not grounded�
The terminals may only be supplied with the signals indicated in the technical data
or on the unit label and only the approved accessories of ifm electronic may be
connected�
The unit can be operated within a wide temperature range according to the tech-
nical specification indicated below� Due to the additional self-heating the housing
walls can have high perceptible temperatures when touched in hot environments�