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3.11 Problems that Can Frequently Occur during Setup and Possible Solutions
228
YASKAWA
SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
Causes
Possible Solutions
Auto-Tuning has just completed.
Switch the keypad to the Home screen.
Note:
When Auto-Tuning completes, the drive is switched back to the Programming Mode. The
Run command will not be accepted unless the drive is in the Drive Mode.
The fast stop command has been entered.
Turn off the fast stop input signal.
Settings are incorrect for the source that provides the Run command.
Set
b1-02 [Run Command Selection 1]
correctly.
The frequency reference source is not set correctly.
Set
b1-01 [Frequency Reference Selection 1]
correctly.
There is defective wiring in the control circuit terminals.
•
Correctly wire the drive control circuit terminals.
•
Check the input terminal status using
U1-10 [Input Terminal Status]
.
The settings for voltage input and current input of the master frequency
reference are incorrect.
Check the analog input terminal signal level settings.
•
Terminal A2: DIP switch S1 and
H3-09 [Terminal A2 Signal Level Select]
Selection for the sinking/sourcing mode and the internal/external power
supply is incorrect.
•
For sinking mode, short circuit terminals SC-SP using a wire jumper.
•
For sourcing mode, short circuit terminals SC-SN using a wire jumper.
•
In the case of an external power supply, remove the wire jumper.
The frequency reference is too low.
•
Check
U1-01 [Frequency Reference]
.
•
Make the frequency reference higher than
E1-09 [Minimum Output Frequency]
.
The MFAI setting is incorrect.
•
Check if the functions set to the analog input terminals being used are correct. When
H3-02,
H3-10, H3-06 = 1 [MFAI Function Selection = Frequency Gain]
has been set and voltage
(current) is not input, the frequency reference will be 0.
•
Check if the analog input values set to terminals A1, A2, and A3 are appropriate using
U1-13
to U1-15 [Terminal A1, A2, A3 Level]
.
was pushed.
Turn off the Run command from external input, and then turn it on again.
Note:
When you push
during operation, the drive will ramp to stop. When you set
o2-02 =
0 [STOP Key Function Selection = Disabled]
, the
function can be disabled.
◆
The Starting Torque Is Not Sufficient
Causes
Possible Solutions
Auto-Tuning has not been done in vector control method.
Do Auto-Tuning.
The control method was changed after doing Auto-Tuning.
Do Auto-Tuning again.
Stationary Auto-Tuning for Line-to-Line Resistance was done.
Do Rotational Auto-Tuning.
◆
Motor Does Not Restart after Power Loss
Causes
Possible Solutions
The Run command was not issued again when power was restored.
Check the sequence and wiring that has been set up to enter the Run command.
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 ...
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