I-Data POLARIS Panel PC 19.1" - Manual (Page 26)

User manual
POLARIS Panel PC 19.1'' and Panel PC 15''
Version 2.00
Page 26 of 46
E_BMS790_POLARIS_PanelPC_19+15_Rev1.doc • User manual for POLARIS Panel PC 19.1" and 15" • Revision 1 / Status: January, 3 rd , 2006 • Technical data subject to change
5.4.5 Installation
guidelines
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The external earth connection facility should be connected to the equipotential bonding
conductor of the potentially explosive area. Since the intrinsically safe circuits are direct-
connected to earth, equipotential bonding must be maintained during complete installation of
the intrinsically safe circuits.
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All current safety and accident prevention regulations must be observed.
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Units must only be operated after proper installation.
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It must be possible to de-energise the products at any time (in fixed installations by means of
an mains switch or fuse which isolates each of the supply cables). The PE terminals on the
back of the unit must be connected to the protective earth conductor.
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It must be ensured that supply voltage is the same as that stated in this manual and that the
tolerances are adhered to.
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Malfunctions may occur if the stated tolerances are either exceeded or are insufficient.
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Steps must be taken to ensure that the system is not put into hazardous, undefined states in
the event of power failures.
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EMERGENCY STOP switches must remain effective in all operating modes and conditions.
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Connection cables (especially data transmission cables) must be selected and installed so as
to preclude impairment of the system’s functionality by capacitive or inductive interference.
Appropriate measures must be taken to deal with open circuit states in such a way that the
system cannot enter undefined states
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Wherever malfunctions are liable to cause injury to persons or damage to property
additional external safety circuits must be installed (e.g. limit switches, mechanical
interlocks, etc.)