Spectrum Controls 1769sc-IF8u User Manual

Page 28

Compact IO

™

Universal Input module

Power Requirements

The module receives power through the bus interface from the +5V dc/
+24V dc system power supply. The maximum current drawn by the
module is shown in the table below.

Module Current Draw

at 5V dc

at 24V dc

150 mA

45 mA

General
Considerations

Compact I/O is 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 to circuits not exceeding Over Voltage Category II(2)
(IEC 60664-1).(3)

Hazardous Location Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B,
C, D or non-hazardous locations only. The following WARNING
statement applies to use in hazardous locations.

WARNING!

· EXPLOSION HAZARD

· Substitution of components may impair suitability for Class I, Division2.

· Do not replace components or disconnect equipment unless power has been

switched off or the area is known to be non-hazardous.

· Do not connect or disconnect components unless power has been switched off or

the area is known to be non-hazardous.

· This product must be installed in an enclosure.

· All wiring must comply with N.E.C. article 501-4(b).

(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
Commission (IEC) designations.