VI.3 Glossary
C Clock Clock signal
Common-mode voltage The maximum amplitude of a disturbance (on both
inputs) which a differential input can eliminate
CONNECT- modules Modules built into the servo amplifier, with integrated
position control, which provide special versions of the
interface for the connection to the higher-level control
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-link Rectified and smoothed power voltage
Disable Removal of the enable signal (0V or open)
E Enable Enable signal for the servo amplifier (+24V)
F Final speed Maximum value for speed normalization at ±10V
Fieldbus interface CANopen, PROFIBUS, SERCOS etc.
G GRAY-code Special method of representing binary numbers
H Holding brake Brake in the motor, which can only be used when the
motor is at a standstill
I I²t threshold Monitoring of the actually required r.m.s. current
Input drift Temperature and age-dependent alteration of an analog
input
Incremental encoder interface Position signalling by 2 signals with 90° phase
difference, not an absolute position output
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-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
Monitor output Output of an analog measurement
Motion-block Data packet with all the position control parameters
which are required for a motion task
Multi-axis system Machine with several independently driven axes
N Natural convection Free movement of air for cooling
O Optocoupler Optical connection between two electrically
independent systems
SERVOSTAR
®
601...620 Installation Manual 83
Seidel 06/02 Appendix
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