S.B.C. Elettronica S.p.A. - Engineering Division
HPDxxN – High Power User’s Manual
42
master and slave can be entered using parameters Pr51 and Pr53. You can also select the ramp to
utilise during catch or release cycles (Pr52), add slip speed (Pr58) and limit speed demands of the
proportional part of the loop (Pr50). Further information available: master and slave locked and
servo-error. Using Pr52, the main ramps and the internal PLC makes it possible to program various
different catch and release modes with or without phase recuperation. Refer to
Frequency input
connection
chapter for connection diagrams.
PARAMETERS FOR OPERATING MODE 10
Pr50
Maximum speed
. Unit=rpm, default=200, range =0..9000. This parameter makes it
possible to limit maximum speed of the motor; it can be used to limit speed during a catch
on fly cycle or during sudden speed changes (see Pr58).
Pr51
Reference multiplication factor
. Default=1, range =-32000..+32000. This parameter,
together with Pr53, makes it possible to set the required ratio for the input reference
frequency.
Pr52
Acceleration/deceleration ramp
.
Unit=s/krpm, default=500, range=0..30000,
resolution=1 thousandth of a second. The acceleration/deceleration demanded of the motor
can be restricted so that a speed decrease or increase of 1000 rpm takes Pr52 thousandths
of a second; this function is useful during catch on fly cycles.
Pr53
Reference division factor
. Default=1, range=-32000..+32000. This parameter together
with Pr51 makes it possible to set the required ratio for the input reference frequency.
Pr54
Reserved.
Pr55
Required speed
. Unit=rpm Read-only parameter. Shows the input reference frequency
converted into rpm
Pr56
Servo-error window
. Unit=steps, default=100. If the absolute value of the position error
exceeds the value set in Pr56, b70.5 is set to 1. If utilised, b70.5 must be reset by the user,
e.g. by the PLC program, following servo-errors.
Pr57
Position controller proportional gain
. Default=100, range 0..32000.
Pr58
Slip speed
.
Pr59
Reserved.
Pr60:61 Position controller reference.
Unit=steps.
Pr62:63 Motor position
. Unit=steps, 4096 steps per revolution.
Pr64:65
Reserved.
Pr66:67
Reserved.
Pr68:69
Reserved.
b70.2
Digital locking engaged
. During locking with ramp (Pr52) other than zero, this bit
indicates the termination of the transitional phase.
b70.3
Enable position
. Default=0. During unlocking b70.3=1 enable position with Pr61:60.
b70.5
Servo-error
. b70.5 is set to 1 if the absolute value of the position error exceeds the value
set in. If utilised, b70.5 must be reset by the user, e.g. by the PLC program, following
servo-errors.
b70.6
Feed-forward
. Default=1. If set to 1 feed-forward is enabled on the position controller.
b70.8
Axis lock/release
. With this bit you can lock (=1) or release (=0) the axis from the input
encoder reference.
b70.9
Reserved.
b70.10 Reset type 1
. Resets motor and reference position. Implemented only with b70.8=0.
b70.15
Reserved.
