—————— Instruction manual ——————
189
Speed
Index Storing
Motor
A
H
Tacho
+
-
T
ach
generator
CEMF
Armature
Fbk Bypass
Encode
r
1
Sinusoidal
6
5
1
8
4
3
A+
A-
B+
B-
C+
C-
0V
5V
XE1 connector
9
7
Encode
r
1
Digital
6
5
1
8
4
3
A+
A-
B+
B-
C+
C-
0V
24
XE2 connector
2
7
Enable ind store
Disabled
Encoder 2 pulses
1024
Refresh enc 2
Disabled
Encoder 1 pulses
1024
Refresh enc 1
Disabled
Speed fbk sel
Armature
Speed fbk sel
Encoder 1
Speed fbk sel
Encoder 2
Speed fbk sel
Tacho
Enc 1 speed
PD output PID
Encoder 1 state
Encoder 2 state
Speed offset
0
Tacho scale
1
Actual spd (d)
Max. out voltage
500 V
Output voltage
Enable fbk bypass
Disabled
Figure 6.11.5.1: Speed feedback
Motor max speed
Max motor speed. It is used to convert tach and armature feedback values in rpm. In case
of speed feedback from tachogenerator it is used to convert the tach voltage in an rpm
value. In case of armature voltage feedback
Max out voltage
parameter is considered
equivalent to
Motor max speed
.
Speed fbk sel
Select which feedback has to be used.
Encoder 1
The sinusoidal encoder connected th the XE1 connector is used.
Encoder 2
The digital encoder connected to the XE2 connector is used
(standard).
Tacho
The analog tachogenerator connected to the ter and - is used.
Armature
The internal measurement of the armature voltage is used. No
external connection is required.
Enable fbk contr
Enable of the control for the speed feedback.
Enabled
Enabled control
Disabled
Disabled control
This function controls the speed feedback, where a comparison between the armature
voltage and the speed value read by the encoder or by the tachometer is made. When an
excursion higher of the value set via
Speed fbk error
is signaled, the failure message
“Speed fbk loss” appears. This function is automatically disabled when the armature
feedback has been selected. (
Speed fbk sel
= Armature).
Enable fbk bypas
Enable of the automatic change into an armature feedback when the failure message
“Speed fbk loss” is caused by a lack of the encoder or tachometer feedback.
Enabled
Enabled automatic change
Disabled
Disabled automatic change
After an automatic change into an armature feedback, the speed regulator works with the
Speed P bypass
and
Speed I bypass
parameters of the REG PARAMETERS/Percent
values/Speed regulator menu. The failure message “Speed fbk loss” with an enable
must be configured so that it is set as “Activity = Warning”.
Possible working only with constant field current.
Содержание TPD32-EV-...-2B
Страница 1: ... Instruction manual Industrial Application DC drives TPD32 EV ...
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Страница 372: ... TPD32 EV 372 9 BLOCK DIAGRAM 9 1 CONTROL BLOCK DIAGRAMS ...
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