SIEPCYEUOQ2V01A Q2V Technical Manual
235
Code
Name
Causes
Possible Solutions
rH
Braking Resistor Overheat
The deceleration time is too short and excessive
regenerative energy is flowing back into the drive.
•
Check the load level, deceleration time, and speed.
•
Decrease the load.
•
Increase the values set in
C1-02, C1-04, C1-06, or C1-08
[Deceleration Times]
.
•
Use a dynamic braking option that lets you use more power.
The duty cycle is too high.
Examine the duty cycle.
Note:
When
L8-01 = 1 [3%ERF DBR Protection = Enabled]
, the
maximum braking duty cycle is 3%.
The braking load is too heavy.
•
Calculate the braking load and braking power again, and
decrease the braking load.
•
Use a braking resistor that improves braking power.
The braking resistor is not sufficient.
Use the braking resistor specifications to select a sufficient
braking resistor.
Note:
•
The drive detects this error if the braking resistor overheat protective function is active.
•
The magnitude of the braking load causes the braking resistor overheat alarm, NOT the surface temperature. If the duty cycle is higher than the braking resistor rating, the
drive will show the alarm.
•
Do a Fault Reset to clear the fault.
•
Parameter
L8-01
enables and disables
rH
detection.
Code
Name
Causes
Possible Solutions
rr
Dynamic Braking Transistor Fault
The drive control circuit is damaged.
There is a malfunction in the internal braking
transistor of the drive.
•
Re-energize the drive.
•
If the fault stays, replace the control board or the drive. For
information about replacing the control board, contact the
manufacturer or your nearest sales representative.
Note:
Do a Fault Reset to clear the fault.
Code
Name
Causes
Possible Solutions
SC
Short Circuit/IGBT Failure
Overheating caused damage to the motor or the
motor insulation is not satisfactory.
Measure the motor insulation resistance, and replace the motor if
there is electrical conduction or unserviceable insulation.
The motor main circuit cable is contacting ground
to make a short circuit.
•
Examine the motor main circuit cable for damage, and repair
short circuits.
•
Measure the resistance between the motor main circuit cable
and the ground terminal. If there is electrical conduction,
replace the cable.
A short circuit or ground fault on the drive output
side caused damage to the output transistor of the
drive.
•
Make sure that there is not a short circuit in terminal B1 and
terminals U/T1, V/T2, and W/T3. Make sure that there is not a
short circuit in terminals - and terminals U/T1, V/T2, and W/
T3.
•
If there is a short circuit, contact the manufacturer or your
nearest sales representative.
When
A1-02 = 5, 6 [Control Method = PM
OLVector or PM AOLVector]
, the output current is
more than the value set in
L8-27 [OverCurr Det
Gain]
.
Set
L8-27
correctly.
Note:
•
The drive detects this error if there is a short circuit or ground fault on the drive output side, or an IGBT failure.
•
Do a Fault Reset to clear the fault.
Code
Name
Causes
Possible Solutions
SCF
Safety Circuit Fault
The safety circuit is broken.
Replace the control board or the drive. For information about
replacing the control board, contact the manufacturer or your
nearest sales representative.
Note:
Do a Fault Reset to clear the fault.
Code
Name
Causes
Possible Solutions
SEr
Speed Search Retries Exceeded
The speed search-related parameters are set
incorrectly.
•
Decrease the value set in
b3-10 [Speed Det Gain for
Estimation]
.
•
Increase the value set in
b3-17 [Speed Retry Current Level]
.
•
Increase the value set in
b3-18 [Speed Retry Delay]
.
•
Do Auto-Tuning again.
The motor is coasting in the opposite direction of
the Run command.
Set
b3-14 = 1 [Speed Bi-Directional Search = Enabled]
.
Note:
•
The drive detects this error if the number of speed search restarts is more than the value set in
b3-19 [Speed Retry Times]
.
•
Do a Fault Reset to clear the fault.
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...