Allen-Bradley PanelView Plus 2711P, Руководство пользователя, Страница: 29 / 170

Publication 2711P-UM001B-EN-P
Installation 2-3
Application Information
Per the National Electrical Code, the circuit parameters of associated
field wired apparatus for use in hazardous locations shall be
coordinated with the host product such that their combination
remains nonincendive. The PanelView Plus 400/600 and the USB
peripheral device shall be treated in this manner.
The circuit parameters of the PanelView Plus 400/600 USB port are
give in Table 1. The USB peripheral device and its associated cabling
shall have circuit parameters with the limits given in Table 2 for them
to remain incendive when used with the PanelView Plus 400/600 USB
port. If cable compliance and inductance are not known, use the
following values from UL 913:
C
cable
= 60 pF/ft
L
cable
= 0.20 µH/ft
Environmental
Considerations The PanelView Plus terminals are suitable for use in an industrial
environment when installed in accordance with these instructions.
Specifically, this equipment is intended for use in clean, dry
environments (Pollution Degree 2
(1)
and with circuits not exceeding
Over Voltage Category II
(2)
(IEC 60664-1).
(3)
(1) Pollution Degree 2 is an environment where, normally only non-conductive pollution occurs except that
occasionally a temporary conductivity caused by condensation shall be expected.
(2) Over Voltage 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’s insulation.
(3) Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commissions (IEC)
designations.
Enclosures
The terminals must be mounted in a panel or enclosure to protect the
internal circuitry. The terminals meet IP54, IP65 and NEMA Type
12/13 and 4X (indoor) ratings only when mounted in a panel or
enclosure with the equivalent rating. When the terminal is not
mounted in a panel, it is not secure or safe for operation. You must
comply with NEMA Type 4X (indoor) requirements for environmental
specifications.
AB Drives