Spectrum Controls SLC 500 1746sc-INO4i Owner's Manual page 16

6 SLC 500
Avoiding Electrostatic
Damage
Determining Power
Requirements
™
Isolated Analog Output Modules
The following documents contain information that may help you as you
install and wire your module:
• National Electrical Code, published by the National Fire Protection
Association of Boston, MA
• IEEE Standard 518-1977, Guide for the Installation of Electrical
Equipment to Minimize Electrical Noise Inputs to Controllers from
External Sources
• IEEE Standard 142-1982, Recommended Practices for Grounding of
Industrial and Commercial Power Systems
• Noise Reduction Techniques in Electronic Systems, by Henry W. Ott;
published by Wiley-Interscience of New York in 1976
Guard against electrostatic damage by observing the following
precautions:
!
The backplane of the SLC 500 system can provide both 5 Vdc and 24
Vdc power. The following table shows the maximum current consumed
by your module when using these power sources:
CAUTION
ELECTROSTATICALLY SENSITIVE COMPONENTS
• Before handling the module, touch a grounded object to
rid yourself of electrostatic charge.
• When handling the module, wear an approved wrist strap
grounding device.
• Handle the module from the front, away from the
backplane connector. Do not touch backplane
connector pins.
• Keep the module in its static-shield container when not
in use or during shipment.
Failure to observe these precautions can degrade the module's
performance or cause permanent damage.