YASKAWA
SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
615
Problem
Solution
Vibration and oscillation occur at constant speed.
•
Decrease
C5-01/C5-03
.
•
Increase
C5-02/C5-04
.
•
Increase
C5-06 [ASR Delay Time]
.
Speed accuracy is poor when running motors with
significant rated slip in CL-V/f Control mode.
•
Check the pulse number set to
F1-01 [Encoder 1 Pulse
Count (PPR)]
and the gear ratio to
F1-12 [Encoder 1
Gear Teeth 1]
and
F1-13 [Encoder 1 Gear Teeth 2]
.
•
Make sure the pulse signal from the encoder is set up
properly.
•
Check
U6-04 [ASR Output]
and determine if the ASR
is working at its output limit set to
C5-05 [ASR Limit]
.
If the ASR is at the output limit, increase C5-05.
If
C5-12 = 1
or
C5-32 = 1 [Enabled]
in Closed Loop V/f
Control and over/undershoot occurs when changing
speed.
-
•
Decrease
C5-01/C5-03
.
•
Increase
C5-02/C5-04
.
•
Decrease the value set to
C5-05
.
Oscillation at low speed and response is too slow at high
speed. Alternatively, the opposite problem occurs.
-
•
CL-V/f Control Mode:
Use
C5-03
and
C5-04
at maximum speed and
C5-01
and
C5-02
at minimum speed to set up different ASR
settings.
•
CLV Control Mode:
Use
C5-01 to C5-04
to define optimal ASR settings for
high and low speed. Use
C5-07 [ASR Gain Switchover
Frequency]
to switch the ASR proportional gain and
ASR integral time in accordance with the output
frequency.
■
C5-01: ASR Proportional Gain 1
No.
(Hex.)
Name
Description
Default
(Range)
C5-01
(021B)
RUN
ASR Proportional Gain 1
Sets the gain to adjust ASR response.
Determined by A1-02
(0.00 - 300.00)
The speed response increases with the weight of the load. Usually, the gain increases with larger loads. Excessive
gain causes vibration.
Note:
•
Motor 1 ASR is usually set using
C5-01
and
C5-02 [ASR Integral Time 1]
. Parameter
C5-03
can be used in place of
C5-01
and
parameter
C5-04
can be used in place
C5-02
when the speed is the same or less than that set with
C5-07 [ASR Gain Switchover
Frequency]
.
•
C5-01
is automatically adjusted when the ASR Tuning process is executed.
■
C5-02: ASR Integral Time 1
No.
(Hex.)
Name
Description
Default
(Range)
C5-02
(021C)
RUN
ASR Integral Time 1
Sets the ASR integral time.
Determined by A1-02
(0.000 - 60.000 s)
When you increase the integral time, the responsiveness will decrease. An integral time that is too short can cause
oscillation.
■
C5-03: ASR Proportional Gain 2
No.
(Hex.)
Name
Description
Default
(Range)
C5-03
(021D)
RUN
ASR Proportional Gain 2
Sets the gain to adjust ASR response.
Determined by A1-02
(0.00 - 300.00)
A higher gain provides a higher speed response. Usually, the gain increases with larger loads. Too much gain will
cause vibration.
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
Содержание CR700
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Страница 244: ...3 13 Test Run Checklist 244 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual ...
Страница 422: ...7 7 Storage Guidelines 422 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual ...
Страница 426: ...8 2 Disposal Instructions 426 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual ...
Страница 837: ...EZZ023535 2 35 1 Revision History Revision Revised Content Date First Edition 2017 08 ...
Страница 872: ...EZZ023536 2 16 Revision History Revision Revised Content Date First Edition 2017 08 ...