Spectrum Controls 1756sc-CTR8 - Manual (Page 17)

Removal and Insertion Under Power
These modules are designed to be installed or removed while chassis
power is applied.
ATTENTION: When you insert or remove a module while backplane
power is applied, an electrical arc may occur. An electrical arc can
cause personal injury or property damage by:
· sending an erroneous signal to your system’s field devices
causing unintended machine motion or loss of process control.
· causing an explosion in a hazardous environment.
Repeated electrical arcing causes excessive wear to contacts on
both the module and its mating connectors. Worn contacts may
create electrical resistance that can affect module operation.
Compliance to European Union Directives
If this product bears the CE marking, it is approved for installation within
the European Union and EEA regions. It has been designed and tested to
meet the following directives.
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards, in
whole or in part, documented in a technical construction file:
EN 61010-1 and EN 61131-2, EN61000-6-2:2001, EN61000-6-4:2001
EN61010-1:2001
This product is intended for use in an industrial environment.
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage,
by applying the safety requirements of EN 61131-2 Programmable
Controllers, Part 2 - Equipment Requirements and Tests.
For specific information required by , EN61131-2:1994 + A11:1996 +
A12:2000, see the appropriate sections in this publication, as well as the
following Allen-Bradley publications:
· Industrial Automation Wiring and Grounding Guidelines For Noise
Immunity, publication 1770-4.1
· Automation Systems Catalog, publication B111