236
SIEPCYEUOQ2V01A Q2V Technical Manual
Code
Name
Causes
Possible Solutions
STPo
Motor Step-Out Detected
The motor code is set incorrectly for PM Control
Methods.
•
Set
E5-01 [PM Mot Code Selection]
correctly as specified by
the motor.
•
For specialized motors, refer to the motor test report and set
E5-xx
correctly.
The load is too large.
•
Increase the value set in
n8-55 [Load Inertia]
.
•
Increase the value set in
n8-51 [Ac/Dec Pull-In Current]
. If the
drive detects
STPo
during deceleration when increasing the
value set in
n8-51
, set the value of
n8-79 [Pull-In
Curr@Deceleration]
lower than
n8-51
.
•
Decrease the load.
•
Replace the drive and motor with larger capacity models.
The load inertia is too large.
Increase the value set in
n8-55
.
The acceleration/deceleration times are too short.
•
Increase the values set in
C1-01 to C1-08 [Acceleration/
Deceleration Times]
.
•
Increase the value set in
C2-01 [Jerk@Start of Accel]
.
Speed response is too slow.
Increase the value set in
n8-55
.
Note:
Do a Fault Reset to clear the fault.
Code
Name
Causes
Possible Solutions
TiM
Keypad Time Not Set
There is a battery in the keypad, but the date and
time are not set.
Use the keypad to set the date and time.
Note:
•
Do a Fault Reset to clear the fault.
•
Parameter
o4-24 [bAT Detection Selection]
enables and disables
TiM
detection.
Code
Name
Causes
Possible Solutions
UL3
Undertorque Detection 1
A fault occurred on the machine.
Example: There is a broken pulley belt.
Examine the machine and remove the cause of the fault.
The parameters are incorrect for the load.
Adjust
L6-02 [Trq Det1 Level]
and
L6-03 [Trq Det1 Time]
settings.
Note:
•
The drive detects this error if the drive output current is less than the level set in
L6-02
for longer than
L6-03
.
•
Do a Fault Reset to clear the fault.
•
If the drive detects this error, it will operate the motor as specified by the Stopping Method set in
L6-01 [Trq Det1 Select]
.
Code
Name
Causes
Possible Solutions
UL4
Undertorque Detection 2
A fault occurred on the machine.
Example: There is a broken pulley belt.
Examine the machine and remove the cause of the fault.
The parameters are incorrect for the load.
Adjust
L6-05 [Trq Det2 Level]
and
L6-06 [Trq Det2 Time]
settings.
Note:
•
The drive detects this error if the drive output current is less than the level set in
L6-05
for longer than
L6-06
.
•
Do a Fault Reset to clear the fault.
•
If the drive detects this error, it will operate the motor as specified by the Stopping Method set in
L6-04 [Trq Det2 Select]
.
Code
Name
Causes
Possible Solutions
UL5
Mechanical Weakening Detection 2
The drive detected undertorque as specified by the
conditions for mechanical weakening detection set
in
L6-08 [MechF Enable]
.
Examine the machine for deterioration.
Note:
•
Do a Fault Reset to clear the fault.
•
If the drive detects this error, it will operate the motor as specified by the Stopping Method set in
L6-08
.
Code
Name
Causes
Possible Solutions
Uv1
DC Bus Undervoltage
There is a phase loss in the drive input power.
Correct errors with the wiring for main circuit drive input power.
There is loose wiring in the drive input power
terminals.
Tighten the terminal screws to the correct tightening torque.
The drive input power voltage is changing too
much.
•
Examine the input power for problems.
•
Make the drive input power stable.
•
If the input power supply is good, examine the magnetic
contactor on the main circuit side for problems.
There was a loss of power.
Use a better power supply.
The main circuit capacitors have become
unserviceable.
Examine the capacitor maintenance time in monitor
U4-05
[Capacitor Maintenance]
. If
U4-05
is more than 90%, replace the
control board or the drive. For information about replacing the
control board, contact the manufacturer or your nearest sales
representative.
Summary of Contents for Q2V Series
Page 2: ...This Page Intentionally Blank 2 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 12: ...12 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 18: ...i 2 Legal Information 18 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 26: ...1 2 Features and Advantages of Control Methods 26 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 38: ...2 8 Installation Methods 38 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 70: ...3 3 Main Circuit Wiring 70 SIEPCYEUOQ2V01A Q2V Technical Manual Models B006 B012...
Page 102: ...3 17 Motor Application Precautions 102 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 138: ...4 12 Test Run Checklist 138 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 144: ...5 2 European Standards 144 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 145: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 145...
Page 146: ...5 2 European Standards 146 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 266: ...7 10 Troubleshooting Without Fault Display 266 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 284: ...8 6 Storage Guidelines 284 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 312: ...10 10 Peripheral Devices and Options 312 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 430: ...11 21 Parameters Changed by PM Motor Code Selection 430 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 731: ...SIEPCYEUOQ2V01A Q2V Technical Manual 731 Z Z pulse Auto Tuning 125...