7.10 Troubleshooting Without Fault Display
YASKAWA
SIEPC71061737B GA800 Drive Technical Reference
363
Causes
Possible Solutions
An incorrect password was entered in
A1-04 [Password]
.
•
Enter the correct password to
A1-04
again.
•
If you forgot the password, set the password again with
A1-04
and
A1-05 [Password Setting]
.
Note:
If the password is set, it will not be possible to change these parameters until the password
matches:
•
A1-01 [Access Level Selection]
•
A1-02 [Control Method Selection]
•
A1-03 [Initialize Parameters]
•
A1-06 [Application Preset]
•
A1-07 [DriveWorksEZ Function Selection]
•
A2-01 to A2-32 [User Parameter 1 to User Parameter 32]
The drive detected
Uv [Undervoltage]
.
•
View
U1-07 [DC Bus Voltage]
to see the power supply voltage.
•
Examine the main circuit wiring.
◆
The Motor Does Not Rotate After Entering Run Command
Causes
Possible Solutions
The drive is not in Drive Mode.
1.
Make sure that the keypad shows [Rdy].
2.
If the keypad does not show [Rdy], go back to the Home screen.
The drive stopped,
was pushed, and changed the Run command source
to the keypad.
Do one of these two:
•
Push
.
•
Re-energize the drive.
Note:
Set
o2-01 = 0 [LO/RE Key Function Selection = Disabled]
to prevent changing the Run
command source with
.
Auto-Tuning completed.
Go back to the Home screen on the keypad.
Note:
When Auto-Tuning completes, the drive changes to Programming Mode. The drive will not
accept a Run command unless the drive is in Drive Mode.
The drive received a fast stop command.
Turn off the fast stop input signal.
The settings for the source that supplies the Run command are incorrect.
Set
b1-02 [Run Command Selection 1]
correctly.
The frequency reference source is set incorrectly.
Set
b1-01 [Frequency Reference Selection 1]
correctly.
There is defective wiring in the control circuit terminals.
•
Correctly wire the drive control circuit terminals.
•
View
U1-10 [Input Terminal Status]
for input terminal status.
The settings for voltage input and current input of the master frequency
reference are incorrect.
Examine these analog input terminal signal level settings:
•
Terminal A1: DIP switch S1-1 and
H3-01 [Terminal A1 Signal Level Select]
•
Terminal A2: DIP switch S1-2 and
H3-09 [Terminal A2 Signal Level Select]
•
Terminal A3: DIP switch S4, S1-3 and
H3-05 [Terminal A3 Signal Level Select]
The selection for the sinking/sourcing mode and the internal/external power
supply is incorrect.
•
For sinking mode, close the circuit between terminals SC-SP with a wire jumper.
•
For sourcing mode, close the circuit between terminals SC-SN with a wire jumper.
•
For external power supply, remove the wire jumper.
The frequency reference is too low.
•
View
U1-01 [Freq Reference]
.
•
Increase the frequency reference to a value higher than
E1-09 [Minimum Output Frequency]
.
The MFAI setting is incorrect.
•
Make sure that the functions set to the MFAI are correct. The frequency reference is 0 when
H3-
02, H3-10, H3-06 = 1 [MFAI Function Select = Frequency Gain]
and voltage (current) is not
input.
•
View
U1-13 to U1-15 [Terminal A1, A2, A3 Input Voltage]
to see if the analog input values set to
terminals A1, A2, and A3 are applicable.
was pushed.
Turn the Run command OFF then ON from an external input.
Note:
When you push
during operation, the drive will ramp to stop. Set
o2-02 = 0 [STOP Key
Function Selection = Disabled]
to disable the
function.
The 2-wire sequence and 3-wire sequence are set incorrectly.
•
Set one of the parameters
H1-03 to H1-08 [Terminals S3 to S8 Function Select]
to
0 [3-Wire
Sequence]
to enable the 3-wire sequence.
•
If a 2-wire sequence is necessary, make sure that
H1-03 to H1-08 ≠ 0
.
Summary of Contents for GA800 Series
Page 2: ...This Page Intentionally Blank 2 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 20: ...i 3 Warranty Information 20 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 58: ...2 9 Installation Methods 58 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 268: ...5 6 Safe Disable Input 268 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 306: ...6 3 MEMOBUS Modbus Communications 306 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 426: ...8 7 Storage Guidelines 426 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
