Lamtec AEC-TPS, Manual

Page: 12 / 284

11
1 Important Information about the Manual
POC Proof of closure = A device that provides feedback that a plant part is in the
"Closed" position.
Pt100 Board measurement resistance (R
o
= 100 Ohm) R
o
= nominal resistance at 0 °C
Pt1000 Board measurement resistance (R
o
= 1000 Ohm) R
o
= nominal resistance at
0 °C
PWR Power
RAM Random-access memory
RECI Flue gas recirculation
Ri Internal resistance
RJ45 Connector Registered Jack (standard socket/plug) - Standard for Ethernet con-
necting cable
RL-L Lower range limits
RL-U Upper range limits
rpm Revolutions Per Minute
SAI Safe Analogue Inputs = module for failsafe analogue inputs
SDI Safe Digital Inputs = module for failsafe digital inputs
SDO Safe Digital Outputs = module for failsafe digital outputs
SELV Safe Extra Low Voltage = Voltage that does not exceed the limits for voltage
range I according to IEC 60449.
SIC Safety interlock chain
STL Safety temperature limiter
TFT Thin Film Transistor (Liquid Crystal Display, LCD technology)
TPS Three-point step
UI400 User interface = simple operating and display unit; display with symbols
VLT Valve leakage test
WLAN Wireless Local Area Network