Parker Hannifin S.p.A S.B.C. Division
SLVDN User’s Manual
Page 88 of 181
10.5.
Digital Lock + Positioner (operating mode
13)
Operating mode 13 includes the Digital Lock, dynamic positioner and flow speed functions
in order to use them at the same time. The tracking function refers to the input frequency
signal (X3 connector) set as an input encoder signal by setting b42.0 = 0, b42.1 =1, and b42.5
= 1. This encoder signal is counted at every end of the communication of A and B signals.
The counter of the motor position is incremented at the rate of 4096 steps per revolution. The
user can program the ratio between the master and the slave by using parameters Pr52 and
Pr53. It is possible to choose the ramp to use during the engaging or release phase (Pr103).
See the connection diagrams in the section,
Input frequency connection
. If you use a digital
input for the engaging command, the digital input 0 in FAST-IN mode must be used in order
to minimize phase errors.
The positioner function follows a trapezoidal profile in which the acceleration and
deceleration ramps are defined by Pr109 and by Pr107 (if b231.13=1), the full speed by Pr108
and the final position by Pr118:119 (one revolution of the motor equals 4096 steps). The
parameters can be modified at any time. The current position of the positioner is given by the
parameter Pr116:117.
You can add a speed by using Pr104.
10.5.1.
TAB0: profiles in memory
In OPM13 is possible use the TAB0 to memory up to 51 trapezoidal profiles, and for
everyone is possible memorize the speed, the acceleration/deceleration ramp and the final
position in double word.
The Pr193 parameter contains the number of the profile to execute, with b231.10=1 bit the
function is able to transfer the block of 4 variables of profile in the positioner variables.
TAB0 1
a
word – speed – Pr108
TAB0 2
a
word – acc/ dec ramp – Pr109
TAB0 2
a
word – dec ramp – Pr107
TAB0 4
a
e 5
a
word – final position – Pr118:119
With the qualified function, b231.10=1, is possible execute automatically another profile,
simply setting up in the pointer parameter, Pr193, another value. Every scansion, the
parameters are transferred from the table to the positioner variables, if the function is able,
b231.10=1.
In order to insert the values in variables of TAB0, using the “configuration” tool it is
necessary open the “monitor” window, where it is possible to access from Pr2048 to Pr2302
parameter, where there are the variables of the 51 trapezoidal profiles, and it possible read
and modify them.
To insert the values via keypad, it necessary OPM14 or OPM11, and use the parameters
Pr103 and Pr104 (see the paragraph “Automatic activation of CAM tables”).
It is necessary save the parameters for guarantee the memory of the profiles inserted.
