10.4 Monitoring an External Encoder
10.4.3 Block Diagrams
10-11
10
Fully-Closed Loop Contr
ol
The following block diagram shows monitoring an external encoder in the Profile Position
Mode.
Position
limit function
Position
user unit
(2701 hex: 1/
2701 hex: 2)
Position
trajectory
generator
Target position
(607A hex)
Software position
limit (607D hex)
Velocity
limit function
Velocity
user unit
(2702 hex: 1/
2702 hex: 2)
Profile velocity
(6081 hex)
Max profile
velocity (607F hex)
Acceleration
limit function
Acceleration
user unit
(2703 hex: 1/
2703 hex: 2)
Profile acceleration
(6083 hex)
Quick stop
deceleration (6085 hex)
Profile deceleration
(6084 hex)
[Pos unit]
[Vel unit]
[Acc unit]
[inc]
[inc/s]
10
4
[inc/s
2
]
Quick stop option code (605A hex)
Controlword (6040 hex)
Position
control
Position
demand
internal
value
(60FC hex)
Following error
window
comparator
Position
user unit
(2701 hex: 2/
2701 hex: 1)
Velocity
user unit
(2702 hex: 2/
2702 hex: 1)
Position reached
window
comparator
Position
user unit
(2701 hex: 2/2701 hex: 1)
Position window
time (6068 hex)
Following window
time out (6066 hex)
Position actual value (6064 hex)
Velocity actual value (606C hex)
Torque actual value (6077 hex)
External encoder position (60E4 hex: 1)
Position window (6067 hex)
Target reached in
statusword
(6041 hex)
Following error in
statusword
(6041 hex)
Following error window (6065 hex)
Following error actual value (60F4 hex)
Motor
Encoder
Speed
control
Machine
External encoder
Serial converter
Torque
control
Position actual
internal value
(6063 hex)
Position demand value
(6062 hex)
Output of position
limit function
+
+
−
−
Multiplier
Multiplier
Multiplier
Multiplier
Multiplier