BECKHOFF AX2500 - Manual (Page 8)

1.4 Abbreviations used
The abbreviations used in this manual are explained in the table below.
Abbrev. Meaning
AGND Analog ground
BTB/RTO Ready to operate
CAN Fieldbus (CANopen)
CE Communité Europeenne (=EC)
CLK Clock signal
COM Serial interface for a PC-AT
DGND Digital ground
DIN Deutsches Institut für Normung
Disk Magnetic storage (diskette, hard disk)
EEPROM Electrically erasable memory
EMC Electromagnetic compatibility
EMI Elektromagnetic interference
EN European standard
ESD Electrostatic discharge
F-SMA Fiber Optic Cable connector according to IEC 60874-2
IEC International Electrotechnical Commission
IGBT Insulated gate bipolar transistor
ISO International Standardization Organization
LED Light-emitting diode
MB Megabyte
NI Zero pulse
NSTOP Limit-switch input, rot. dir. CCW (left)
PC Personal Computer
PELV Protected low voltage
PLC Programmable logic controller
PSTOP Limit-switch input, rot. dir. CW (right)
PSU Power supply unit
PWM Pulse-width modulation
RAM Volatile memory
RBext External regen resistor
RBint Internal regen resistor
RES Resolver
ROD 426 A quad B Encoder
SRAM Static RAM
SSI Synchronous serial interface
UL Underwriter Laboratory
V AC AC voltage
V DC DC voltage
VDE Verein deutscher Elektrotechniker
8 AX2500 Product Manual
General
06/2007
BECKHOFF