12 Appendix
12.1 Glossary
B Brake circuit Converts generative energy fed back by the motor during
braking (generated energy) to heat.
C Clock Clock signal
Common-mode voltage The maximum amplitude of a disturbance (on both
inputs) which a differential input can eliminate
Counts Internal count pulses, 1 pulse = 1 / 2
20
turn
-1
Continuous power of brake circuit Mean power that can be dissipated in the brake circuit
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
E Earth short electrical connection between a phase and the protective
earth (PE)
Enable Enable signal for the servo amplifier, Hardware-Enable
with 24V signal to X3, Software-Enable command by
setup Software, fieldbus or permanently set. Both are
required for enabling the amplifier.
ENABLE Enable signal for the servo amplifier (+24 V)
F Fieldbus interface CANopen, PROFIBUS, SERCOS etc.
Final speed (limit speed) Maximum value for the speed normalization at ±10 V
G GRAY-code Special format for representing binary numbers
H Holding brake Brake in the motor, that can only be used when the motor
is at standstill
I I²t threshold Monitoring of the r.m.s. current that is actually required
Input drift Temperature and age-dependent alteration of an analog
input
Incremental encoder interface Position signaling by 2 signals with 90° phase difference
(i.e. in quadrature), is 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 speed (final speed) Maximum value for speed normalization at ±10 V
Limit switch Switch limiting the traverse path of the machine; imple-
mented 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 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
S748-772 Instructions Manual | 12 Appendix
Kollmorgen | kdn.kollmorgen.com | July 2019 157
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