SIMODRIVE base line A Start-Up
3-1
3. Technical description
3.1. Closed-loop control with resolver
General
This drive variant is intended for applications for which highest encoder
resolution is not a primary concern. The control has been specially
designed for use with sine-commutated 1FK servomotors.
The resolver encoder system integrated in the motor supplies the signals
required by the control system, such as motor rotor position and actual
speed, as well as an incremental shaft encoder interface with TTL
signals for external processing.
Control process
Actual
current
Actual
speed
Rotor
position
Speed
controller
Current
controller
Gating
unit
Coordinator
Power
section
AC
servomotor
Resolver
Current
measurements
Motor encoder
measurements
n
+
-
+
-
M
3~
G
Fig.3-1 Control process in SIMODRIVE base line A