SIEPCYEUOQ2V01A Q2V Technical Manual
231
Code
Name
Causes
Possible Solutions
oH4
Motor Overheat Fault (PTC Input)
The motor has overheated.
•
Check the load level, acceleration/deceleration time, and motor
start/stop frequency (cycle time).
•
Decrease the load.
•
Increase the values set in
C1-01 to C1-08 [Acceleration/
Deceleration Times]
.
•
Set
E2-01 [Mot Rated Current (FLA)]
correctly to the value
specified by the motor nameplate.
•
Make sure that the motor cooling system is operating correctly,
and repair or replace it if it is damaged.
•
Adjust
E1-04 to E1-10 [V/f Pattern Parameters]
. For motor 2,
adjust
E3-04 to E3-10
. Decrease the values set in
E1-08 [Mid
A Voltage]
and
E1-10 [Min Output Voltage]
.
Note:
If the values set in
E1-08
and
E1-10
are too low, the overload
tolerance will decrease at low speeds.
Note:
•
The drive detects this fault if the motor overheat signal in analog input terminals A1, or A2 is more than the Fault detection level. (If
H3-02, H3-10= 16 [AI1/AI2 Function
Select = Mot PTC Input]
.)
•
Do a Fault Reset to clear the fault.
Code
Name
Causes
Possible Solutions
oL1
Motor Overload
The load is too large.
Decrease the load.
Note:
Reset
oL1
when
U4-16 [MotorOLEstimate (oL1)]
< 100.
The acceleration/deceleration times or cycle times
are too short.
•
Examine the acceleration/deceleration times and the motor
start/stop frequencies (cycle times).
•
Increase the values set in
C1-01 to C1-08 [Acceleration/
Deceleration Times]
.
Overload occurred while running at low speed.
•
Decrease the load when running at low speed.
•
Increase the motor speed.
•
If the motor is run frequently at low speeds, replace the motor
with a larger motor or use a drive-dedicated motor.
Note:
For general-purpose motors, overload can occur while
running at low speed when operating at below the rated
current.
L1-01 [Motor Cool Type for OL1 Calc]
is set
incorrectly.
Set
L1-01
in as specified by the motor qualities for a drive-
dedicated motor.
The V/f pattern does not fit the motor qualities.
•
Examine the ratios between the V/f pattern frequency and
voltage. Decrease the voltage if it is too high compared to the
frequency.
•
Adjust
E1-04 to E1-10 [V/f Pattern Parameters]
. For motor 2,
adjust
E3-04 to E3-10
. Decrease the values set in
E1-08 [Mid
A Voltage]
and
E1-10 [Min Output Voltage]
.
Note:
If the values set in
E1-08
and
E1-10
are too low, the overload
tolerance will decrease at low speeds.
E1-06 [Base Frequency]
is set incorrectly.
Set
E1-06
to the rated frequency shown on the motor nameplate.
One drive is operating more than one motor.
Set
L1-01 = 0 [Motor Cool Type for OL1 Calc = Disabled]
,
connect thermal overload relay to each motor to prevent damage
to the motor.
The electronic thermal protector qualities and the
motor overload properties do not match.
•
Examine the motor qualities and set
L1-01 [Motor Cool Type
for OL1 Calc]
correctly.
•
Connect a thermal overload relay to the motor.
The electronic thermal protector is operating at an
incorrect level.
Set
E2-01 [Mot Rated Current (FLA)]
correctly to the value
specified by the motor nameplate.
There is increased motor loss from overexcitation
operation.
•
Lower the value set in
n3-13 [OverExcBr Gain]
.
•
Set
L3-50 ≠ 3 or 4 [StallP@Decel Mode ≠ HiFlux
Overexcitation or HiFlux2 Overexcitation]
.
•
Set
L3-04 = 0 [StallP@Decel Enable = Disabled]
.
The speed search-related parameters are set
incorrectly.
•
Examine the settings for all speed search related parameters.
•
Adjust
b3-03 [SpSrch Deceleration Time]
.
•
Set
b3-24 = 1 [SpSrch Method Selection = Speed Estimation]
after Auto-Tuning.
Phase loss in the input power supply is causing the
output current to change.
Make sure that there is no phase loss, and repair problems.
The motor main circuit cable is too long.
•
Replace the drive with a larger capacity model.
•
Decrease
C6-02 [Carrier Frequency Selection]
. Or set
C6-02
= B
.
Note:
•
The drive detects this fault if the electronic thermal protector of the drive started the motor overload protection.
•
Do a Fault Reset to clear the fault.
•
L5-07 [OL1-4 Auto-Reset Select]
disables the Auto Restart function.
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...
