
SINUS PENTA
PROGRAMMING
INSTRUCTIONS
42/452
7 .3 .
“FOC” Motor Control
1) Wiring:
Follow the instructions stated in the “Caution Statements” and “Installation”
sections in the
Sinus Penta’s
Installation Instructions Manual
.
2) Power on:
Power on the drive and do not close the link to the
START
input to prevent the
motor from running.
3) Parameter
modification:
Access parameter
P000
(Key parameter) and set its code (default value: 00001).
Use the
ESC
,
▲
,
▼
and
SAVE/ENTER
keys to access the programming
parameters. Select the Engineering access level setting P001= Eng. Also refer to
the Menu Tree.
4) Supply voltage:
Set the real supply voltage for the drive. You can set either mains voltage range or
the DC supply stabilized by a Regenerative Penta drive. To set the type of power
supply for the drive, access the MOTOR CONTROL MENU and set configuration
parameter
C008
to the value corresponding to the installation concerned.
5) Motor parameters:
Set
C010
(Control Algorithm) as FOC Field Oriented Control. Set the motor ratings
as follows:
-
C015
(fmot1) rated frequency
-
C016
(rpmnom1) rated rpm
-
C017
(Pmot1) rated power
-
C018
(Imot1) rated current
-
C019
(Vmot1) rated voltage
-
C029
(Speedmax1) max. speed desired.
If the no-load current of the motor is known, in
C021
(
Io
) set the value of
Io
expressed as a percentage of the motor rated current.
If the no-load current of the motor is not known, but the motor can run with no
connected load, start the motor at its rated speed, read the current value detected
by the drive (parameter
M026
) in the Motor Measures Menu and use it as the first
attempt value for
Io
.
NOTE
If the connected motor
must run at a higher speed than its
rated speed (flux weakening), measure the no-load current
value of the motor at its rated speed, not at its max. speed.
If the no-load current of the motor is not known and the motor cannot run in no-
load conditions, use a first attempt value for
Io
that is automatically computed by
the drive, as described in step 7.
NOTE
When parameter
C021
(Io)=0, the drive will automatically
set a value depending on the motor ratings whenever the
motor autotune (step 7) is performed.
Once a no-load current value is entered in
C021
, the value of the parameter
relating to mutual inductance (
C024
) will be automatically computed when
parameters
I073
= [1: Motor Tune] and
I074
= [1: FOC Auto no rotation] are set up
as for current autotune (
C024
is computed even if no autotune procedure occurs).
Also set
C022
(resistance of one stator phase for a star connection or one third of
one phase resistance for a delta connection) and
C023
(stator leakage inductance
of one phase for a star connection or one third of the leakage of one phase for a
delta connection). The value for
C022
corresponds to half the resistance value
measured with an ohm-meter between two phases of the motor. If values to be set
for
C022
and
C023
are not known, motor autotune is required (see step 6),
otherwise, go to step 7. Press SAVE/ENTER each time a new parameter is set.