BECKHOFF AX2500 - Manual (Page 94)

P P-controller Control loop with purely proportional behaviour
phase shift Compensation for the lag between the electro-
magnetic and magnetic fields in the motor
PID-controller Control loop with proportional, integral and
differential behaviour
PID-T2 Filter time constant for the speed controller output
position controller Regulates the difference between the position
setpoint and the actual position to 0
Output : speed setpoint
potential isolation electrically decoupled
power contactor System protection device with phase monitoring
pulse power of the regen circuit Maximum power which can be dissipated in the
regen circuit
R regen circuit Converts superfluous energy, which is fed back
during braking, into heat in the regen resistor
reset New start of the microprocessor
reversing mode Operation with a periodic change of direction
ROD-interface Incremental position output
S servo amplifier Control device for regulating the speed, torque
and position of a servomotor
setpoint ramps Limits for the rate of change of the speed
setpoint
short-circuit here: electrically conductive connection between
two phases
speed controller Regulates the difference between the speed
setpoint and the actual value to 0
Output : current setpoint
SSI-interface Cyclic-absolute, serial position output
supply filter Device to divert interference on the power supply
cables to PE
T T-tacho, tachometer time constant Filter time constant in the speed feedback of
the control loop
tachometer voltage Voltage proportional to the actual speed
thermostat Temperature-sensitive switch built into the
motor winding
Tn, I-integration time Integral section of a control loop
Z zero pulse Output once per turn from incremental encoders,
used to zero the machine
94 AX2500 Product Manual
Appendix
06/2007
BECKHOFF