Pro-face PS3710A-T42, Руководство по установке

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• The PS-A unit’s rear face is not approved as an
enclosure. When building the PS-A unit into an
end-use product, be sure to use an enclosure that
satisfies standards as the end-use product’s overall
enclosure.
• The PS-A unit must be used indoors only.
• Install and operate the PS-A with its front panel
facing outwards.
• If the PS-A is mounted so as to cool itself naturally,
be sure to install it in a vertical panel. Also, it’s rec-
ommended that the PS-A should be mounted at
least 50mm [1.97in.] away from any other adjacent
structures or machine parts. The temperature must
be checked on the final product in which the PS-A
is installed.
• For use on a flat surface of a Type 4X (Indoor Use
Only) and/or Type 12 Enclosure.
• Type 4X (Indoor Use Only) and/or 12 Enclosure,
when the hatch for Front USB Port is secured with a
screw.
Type 1 Enclosure, when the hatch for Front USB
Port is open.
<Hazardous Locations -
Compliance and Handling Cautions>
• Suitable for use in Class I, Division 2, Groups A,
B, C, and D Hazardous Locations only.
• WARNING: Explosion hazard - substitution of
components may impair suitability for Class I,
Division 2.
• WARNING: Explosion hazard - do not disconnect
equipment while the circuit is live or unless the
area is known to be free of ignitable concentra-
tions.
• WARNING: Explosion hazard - when using the
PS-A with the AC type power supply, be sure to
attach the Power Switch Cover.
<Control Drawing of USB I/F on PS-
A's Front Module>
The information below concerns the use of the USB
I/F located on the PS-A unit's front modules used in
Class I, Division 2 Groups A, B, C, and D hazardous
locations (from Doc No. 35016429).
PS-A's Front Module
Notes:
1. Nonincendive Circuit Parameters:
Front USB I/F:
Voc = 5.0 V, Isc = 1.25 A, Ca = 10
µ
F,
La = 16
µ
H
2. Selected Associated Nonincendive Field Wiring
Apparatus shall satisfy the following:
3. If the electrical parameters of the cable are
unknown, the following values may be used:
Capacitance = 60pF/ft, Inductive = 0.20 µH/ft
4. Nonincendive Field Wiring must be installed in
accordance with article 501.10(B) of the
National Electrical Code ANSI/NFPA 70.
5. Nonincendive Field Wiring Apparatus shall not
contain or be connected to another source of
power.
Nonincendive Field
Wiring Apparatus
-
Front module
of PS-A unit
Voc
≤
Vmax
Isc
≤
Imax
Ca
≥
Ci+C cable
La
≥
Li+L cable
USB Pin Description
(See note 1 for detail)
Shield. Gnd
1.Vcc
2.D-
3.D+
4.GND
1 2 3 4
Nonincendive Field
Wiring Apparatus