7.3 Glossary
C clock Clock signal
common-mode voltage The maximum amplitude of a disturbance (on both
inputs) which a differential input can eliminate
continuous power of regen circuit Mean power which can be dissipated in the
regen circuit
counts Internal count pulses, 1 pulse = 1/2
20
turn
-1
current controller Regulates the difference between the current
setpoint
and the actual value to 0
Output : power output voltage
D DC Bus link Rectified and smoothed power voltage
disable Removal of the enable signal (0V or open)
E earth short electrical connection between a phase and
the protective earth (PE)
enable Enable signal for the servo amplifier (+24V)
F fieldbus interface CANopen, PROFIBUS, SERCOS
free convection Free movement of air for cooling
G GRAY-code Special format for representing binary numbers
H holding brake Brake in the motor, which should only be used
when the motor is at standstill
I I²t threshold Monitoring of the r.m.s. current that is actually
required
incremental encoder interface Position signalling by 2 signals with 90° phase
difference, not an absolute position output
input drift Temperature and age-dependent alteration of an
analog input
Ipeak, peak current The effective value of the peak current
Irms, effective current The r.m.s. value of the continuous current
K Kp, P-gain Proportional gain of a control loop
L limit speed Maximum value for speed normalization at ±10V
limit-switch Switch limiting the traverse path of the machine;
implemented as n.c. (break) contact
M machine The complete assembly of all connected parts or
devices, of which at least one is movable
motion-block Set of all the position control parameters
which are required for a motion task
multi-axis system Machine with several driven axes
N natural convection Free movement of air for cooling
O optocoupler Optical connection between two electrically
independent systems
70 SERVOSTAR
®
400 Installation Manual
Appendix 07/05 Kollmorgen
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