6 Operating modes
●
h
(Velocity Actual Value):
Indicates the current actual speed.
●
h
(Velocity Window):
This value specifies by how much the actual speed may vary from the set speed for bit 10 (target speed
reached; Target Reached") in object 6041
h
(statusword) to be set to "1".
●
h
(Velocity Window Time):
This object specifies how long the actual speed and the set speed must be close to one another (see
606D
h
"Velocity Window") for bit 10 "Target speed reached" in object 6041
(statusword) to be set to "1".
●
h
(Polarity):
If bit 6 is set to "1" here, the sign of the target speed is reversed.
●
(Profile acceleration):
Sets the value for the acceleration ramp in Velocity Mode.
●
(Profile Deceleration):
Sets the value for the deceleration ramp in Velocity Mode.
●
(Quick Stop Deceleration):
Sets the value for the deceleration ramp for rapid braking in Velocity Mode.
●
(Motion Profile Type):
The ramp type can be selected here ("0" = trapezoidal ramp, "3" = jerk-limited ramp).
●
h
(Target Velocity):
Specifies the target speed that is to be reached.
6.3.6.1 Objects in Profile Velocity Mode
Target velocity 60FFh
Quick stop deceleration 6085h
Profile acceleration 6083h
Motion profile type 6086h
Polarity 607Eh
Profile deceleration 6084h
Limit
function
Max deceleration 60C6h
Max acceleration 60C5h
Trajectory
generator
multiplier
Velocity demand
value 606Bh
Jerks 60A4h:1 to 60A4:4
6.3.6.2 Activation
After the mode is selected in object 6060
h
(Modes Of Operation) and the "Power State machine" (see "CiA
402 Power State Machine") is switched to Operation enabled, the motor is accelerated to the target speed in
object 60FF
h
(see following figures). The speed and acceleration values are taken into account here; for jerk-
limited ramps, the jerk-limit values are also taken into account.
6.3.6.3 Limitations in the jerk-limited case
The following figure shows the adjustable limits in the jerk-limited case (6086
= 3).
Version: 2.0.1 / FIR-v1650
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