6.3 Glossary of Technical Terms
Boost Momentary increase of the set phase current for the purpose of
increasing the torque when the motor is accelerating or braking
Clockwise Clockwise rotation of stepping motors
Positive sense of rotation as seen from the motor shaft (flange side)
Counterclockwise Counterclockwise rotation of stepping motors
Negative sense of rotation as seen from the motor shaft (flange side)
ENABLE command Signal input for activation of the controller 5-phase stepping
motor Special stepping motor for wall- mounted equipment from
BERGER LAHR
Full step Rotational angle of the 5-phase stepping motor per 0.72" step
(corresponds to 500 steps/revolution)
Half step Rotational angle of the 5-phase stepping motor per 0.36" step
(corresponds to 1000 steps/revolution)
Pentagram connection Connection mode of the stepping motor for 5-wire technique in which
the windings of the motor are wired in a pentagram
Phase current The current flowing through a winding of the stepping motor
Pulse frequency Number of driving pulses per second; with each pulse the motor
performs one step
Pulse width modulation PWM Control of an analogue quantity via the pulse width/pulse spacing
ration of an input signal (see also current control)
Ring counter Cyclically operating counter with topped decoding logic for generation
of the current pattern for the 5 phases of the stepping motor
Start/Stop frequency Largest pulse frequency at which the motor with a given load can
start and stop without contouring error
Step Process in which the motor shaft of the stepping motor executes
a movement corresponding to one step angle
Step angle Nominal angle through which the motor shaft of the stepping motor for
each drive pulse (see also Half step, Full step)
Stop time Period within which a signal condition is maintained.
Appendix
WS5-5 Doc. no. 211.347/DGB 12.92 6 – 5
To Next Page
Loading...
Need help?
General