121/126
Siemens Building Technologies
SED2 variable speed drives
CM1U5192en
HVAC Products
Appendix
01.2002
9.3 List of abbreviations
Alternating current.
Analog / digital converter (also called ADC).
Analog input.
Advanced operator panel (AOP).
Analog output.
Building automation and control system; do not confuse with building management
system BMS.
Binector input, i.e., the parameter selects the source of the binary signal.
Binector output, i.e., the parameter connects as a binary signal.
Basic operator panel (BOP).
Communication board.
Command data set.
Plug input, i.e., the parameter selects the source of the analog signal.
Plug output, i.e., the parameter connects as an analog signal.
Plug/binector output, i.e., the parameter connects as an analog and/or binary signal.
Digital / analog converter (also called DAC).
Direct current.
For pumps (or fans): The process of stopping an additional motor with constant speed
to reduce power.
Digital input.
Digital output.
Earth leakage circuit breaker.
Electromagnetic compatibility.
Electromagnetic interference.
Flux current control.
Frame size of the SED2 variable speed drives.
International electrotechnical commission.
Insulated gate bipolar transistor.
IP number (ingress protection) for the type of protection afforded to the device.
IP20 Device protected against intrusion of items greater >12 mm. No protection
against water. (Corresponds to the US standard NEMA 1).
IP54 Device protected against dust and spray from all directions. (Corresponds to the
US standard NEMA 12).
Liquid crystal display.
Proportional, integral, differential (controller).
Positive temperature coefficient.
Residual current circuit breaker.
AC
A/D
AIN
AOP
AOUT
BACS
BI
BO
BOP
CB
CDS
CI
CO
CO/BO
D/A
DC
Destaging
DIN
DOUT
ELCB
EMC
EMI
FCC
FS
IEC
IGBT
IPxx
LCD
PID
PTC
RCCB
