Procon V3D - Glossary of Terms

H - I - J PROGRAMMER’S MANUAL V8.94.11-
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quick menu
collection of the most common parameters used for programming
reference signal
the value to be set at regulation or control
regulation
according to the external conditions, the output frequency will set in to the value at which
the feedback signal becomes equal with the preset value of the reference signal.
resistor brake
braking with directing the surplus energy to a resistor (at generator mode).
roll out
the motor’s coming to standstill with free roll out (coasting)
RS 232 / 485 interface
interfacing the RS485 serial line of the equipment to computer or PLC
RS485/R
system serial line (for remote control with MOD bus)
RS485/T
terminal serial line (general serial line for programmer units, displays)
run time 1
total number of operating hours of the frequency converter
run time 2
operating time of the frequency converter output (the time elapsed during start)
S curve
means the soft transition of the corner points (break points) of the run up (and run down)
selector switch
selection possibilities at programming (if the item to be set is not numeric value)
sequence
programs running down one after another
slip compensation
load depending frequency correction (for keeping the rotation speed constant)
start / stop
start command / stop command
stop band
analogue input signal range, at start this range includes “waiting” mode)
synchronous systems
master/slave connections
Tdown
normal deceleration time (may differ at control and regulation)
terminal
unit used for programming and displaying
terminal 1, 2, 3, 4
storage places for the user settings in the terminal
torque control
this control adjusts the motor rotation speed in order to produce the preset torque
Tsink
temperature of the frequency converter’s heatsink
Tup
normal acceleration time (may differ at control and regulation)
U boost
starting voltage (at start, at 0 Hz, this appears on the motor clamps to counteract the
magnetization loss)
U/f ratio
ratio of the voltage and the corresponding frequency
Udc
voltage across the capacitor of the intermediate circuit
Uline
calculated value of the line voltage (from Udc)
Umotor
voltage delivered to the motor
unbouncing
filtering the switching uncertainty of a mechanical switch
USB / RS 485 interface
interfacing the RS485 serial line of the equipment to computer or PLC
virtual input
internal input that can be used with the features of digital inputs
waiting
the equipment is in start state but the operation is suspended