S.B.C. Elettronica S.p.A. - Engineering Division
HPDxxN – High Power User’s Manual
40
Pr60:61
Reserved.
Pr62:63
Reserved.
Pr64:65
Reserved.
Pr66:67
Reserved.
Pr68:69
Reserved.
b70.0
Start profile
. Set 1 to execute the programmed profile. Remember to set b40.2=1 to
effectively switch the speed reference to the control loop.
b70.1
Manual forward speed
. If at 1 with b70.0=0 and b40.2=1, the shaft will rotate at the
speed programmed in Pr50.
b70.2
Manual reverse speed
. If at 1 with b70.0=0 and b40.2=1, the shaft will rotate at the
speed programmed in Pr50 but in the opposite direction.
b70.3
Wiring test
. When you set this command the drive performs a test procedure and returns
the result as an error code that can be viewed using parameters Pr56 and Pr57. Before
entering this command, make sure the motor is disconnected from all loads, even pure
inertia loads. Also ensure that b40.9=0.
b70.4
Reserved.
b70.5
Vibration test.
If none of the above functions is active, you can set this bit to one to
evaluate the vibration of the motor shaft, incrementing parameter Pr64 in absolute terms by
a value proportional to the vibration detected. The user is responsible for evaluating Pr64
and bringing it to zero in relation to the appropriate time interval.
b70.6
Reserved.
b70.7
Reserved.
b70.8
Reserved.
3.6.4 Positioner
Operating mode 9 executes a simple trapezoidal profile. For this profile the user must define
acceleration with Pr51, steady time rpm with Pr52 and displacement using the pair of long format
parameters Pr64 and Pr65. At each profile execution command, b70.8, the motor executes Pr64:65
steps (one motor revolution is equivalent to 4096 steps). The parameters of a trapezoidal profile
cannot be changed during execution (b70.7=1), except Pr64:65. In the block diagram note the four
different reset types, the availability of servo-error indication and the possibility of using space
control with or without feed forward. The incremental position must be always positive and
movement direction must be selected with parameter b70.1. Displacement can be defined using the
drive frequency input. Additional features are available using the internal PLC.
Note that the profile execution command is not generated on a constant time base (profile
calculation may require more than 2 milliseconds).
PARAMETERS FOR OPERATING MODE 9
Pr50
Pulse input multiplication factor K
. Default=1. If b70.9=1 frequency/direction input
pulses are multiplied by Pr50 and the result is added to Pr64:65. The frequency input
direction signal must be forced to a fixed level (logical 0). Refer to the chapter
Frequency
input connection
for the connection diagrams
.
Pr51
Acceleration time
. Unit=s/krpm, range=0.002..30.000, resolution=0.001 sec,
default=0.002 S. Acceleration ramp for positioning profile.
