—————— Instruction manual ——————
317
n
ote
:
In case it would be necessary to use the drive with a provisory current higher than the rated
current of the drive, it is possible to increase the above described value of PID out scale.
For example, if one wants to obtain 1.5 times the size, one has to set:
PID out scale
= 0.2 x 1.5 = 0.3
In this case it is necessary to enable the function of overload control “
Overload contr
” setting
correctly the values
Overload current
,
Overload time
,
Base current
and
Pause Time
.
The firmware of the drive does not perform a control on the polarity of the value sent, for
this reason, if it is not necessary to address the regulator output on parameters “Unsigned”,
then set the PID output so that it can be positive.
PID out. sign PID
= Only positive
The parameters “Unsigned”, for example the current limits
T current lim +
and
T current lim -
, are indicated
in the “
List of high priority parameters
“ with the symbol “U16”.
Set
PI central v sel
= 1.
Set
PI central v 1
= 0
In this configuration, when executing the transition Off / On of the parameters for the enabling of the PID func
-
tion, the regulator output starts from 0.
If it is necessary to retain the last value calculated also when the machine is disabled, it necessary to use a digital
input programmed as:
Digital input xx = PI central v S0
PI central v 1
= 0
When the digital input is at a low logic level (L), the last value calculated is stored. Applying a high logic level
(H) will reset the value.
Set
PI top lim
and
PI bottom lim
in order to obtain a correction of the PID block equal to 100% of its maxi
-
mum value.
PI top lim
= 1
PI bottom lim
= -1
In this configuration the PID block output will be either positive and negative.
Setting
PI top lim
= 0, the positive part is blocked.
Setting
PI bottom lim
= 0, the negative part is blocked.
The gains of the various components must be set experimentally with the machine loaded.
It is possible to start the test with the following values:
Set
PI P gain PID
= 10%
Set
PI I gain PID
= 4%
Set
PD P gain PID
= 10%
Use the derivative component as damping component of the system, setting for example:
PD D gain PID
= 5%
PD D filter PID
= 20ms
If not necessary maintain these parameters = 0.
Содержание TPD32-EV-...-2B
Страница 1: ... Instruction manual Industrial Application DC drives TPD32 EV ...
Страница 62: ... TPD32 EV 62 10 mm 0 4 150 mm 6 150 mm 6 150 mm 6 10 mm 0 4 10 mm 0 4 50 mm 2 Figure 3 3 2 Mounting Clearance ...
Страница 372: ... TPD32 EV 372 9 BLOCK DIAGRAM 9 1 CONTROL BLOCK DIAGRAMS ...
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