11 Appendix

11.1 Glossary

CClock 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 = 1/220turn-1
Current controller Regulates the difference between the current setpoint
and the actual value to 0
Output: power output voltage
DDC bus link Rectified and smoothed power voltage
Disable Removalof the enable signal (0V or open)
EEnable Enable signal for the servo amplifier (+24V)
FFinal speed Maximumvalue for speed normalization at ±10V
Fieldbus interface CANopen,PROFIBUS, SERCOS etc.
GGRAY-code Specialmethod of representing binary numbers
HHolding brake Brake in the motor, which can only be used when the
motor is at a standstill
II²t threshold Monitoringof the actually required r.m.s. current
Input drift Temperature and age-dependent alteration of an analog
input
Incremental encoder interface Position signaling 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
KKp, P-gain Proportional gain of a control loop
LLimit-switch Switchlimiting the traverse path of the machine;
implemented as n.c. (break) contact
MMachine The complete assembly of all connected parts or
devices, of which at least one is movable
Monitor output Outputof 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
NNatural convection Free movement of air for cooling
OOptocoupler Optical connection between two electrically
independent systems

SERVOSTAR®601...620 Product Manual 115

Danaher Motion 07/2007 Appendix