Danfoss VLT AutomationDrive EZ FC 321 Installation Manual page 36

VLT®AutomationDrive EZ FC 321
Installation Guide
6 Appendix
6.1 Abbreviations
Table 22: Abbreviations
Term Definition
AC Alternating current
AWG American wire gauge
DC Direct current
EMC Electromagnetic compatibility
ETR Electronic thermal relay
IEC International Electrotechnical Commission
IP Ingress protection
LCP Local control panel
LOP Local operation pad
mA Milliamp
NC Normally closed
NEMA National Electrical Manufacturers Association
NO Normally open
PELV Protective extra low voltage
PTC Positive temperature coefficient
RMS Root means square (cyclically alternating electric current)
RPM Revolutions per minute
STO Safe Torque Off
UPS Uninterruptible power supply
UTP Unshielded twisted pair
V Volt
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Appendix
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