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LED Operator Display
Fault Name
oH
Heatsink Overheat
The temperature of the heatsink exceeded the value set to L8-02 (90-100°C). Default value for L8-02
is determined by drive capacity (o2-04).
Cause
Possible Solution
Surrounding temperature is too high.
• Check the temperature surrounding the drive. Verify temperature is within drive specifications.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool the surrounding area.
• Remove anything near the drive that might be producing excessive heat.
Load is too heavy.
• Measure the output current.
• Decrease the load.
• Lower the carrier frequency (C6-02).
Internal cooling fan is stopped.
• Replace the cooling fan.
Refer to Cooling Fan Replacement on page 267
.
• After replacing the drive, reset the cooling fan maintenance parameter (o4-03 = “0”).
LED Operator Display
Fault Name
oH1
Overheat 1 (Heatsink Overheat)
The temperature of the heatsink has exceeded the overheat detection level.
Cause
Possible Solution
Surrounding temperature is too high.
• Check the temperature surrounding the drive.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool the surrounding area.
• Remove anything near the drive that might be producing excessive heat.
Load is too heavy.
• Measure the output current.
• Lower the carrier frequency (C6-02).
• Reduce the load.
The internal cooling fan has reached its
performance life or has malfunctioned.
• Check the maintenance time for the cooling fan (U4-04).
• If U4-04 exceeds 90%, replace the cooling fan.
Refer to Cooling Fan Replacement on page 267
.
• After replacing fan, reset the fan maintenance time (o4-03 = “0”).
Current flowing to control circuit teV
exceeded the tolerance level.
• Check the current level of the terminal.
• Set the current to the control circuit terminal to be 20 mA or less.
LED Operator Display
Fault Name
oH3
Motor Overheat Alarm (PTC Input)
• The motor overheat signal to analog input terminal A1 or A2 exceeded the alarm detection level.
• Detection requires multi-function analog input H3-02 or H3-10 be set to “E”.
Cause
Possible Solution
Motor has overheated
• Check the size of the load, the accel/decel times and the cycle times.
• Decrease the load.
• Increase the acceleration and deceleration times (C1-01 through C1-08).
• Adjust the preset V/f pattern (E1-04 through E1-10). This will mainly involve reducing E1-08 and
E1-10.
• Be careful not to lower E1-08 and E1-10 excessively, as this reduces load tolerance at low speeds.
• Check the motor-rated current.
• Enter the motor-rated current as indicated on the motor nameplate (E2-01).
• Ensure the motor cooling system is operating normally.
• Repair or replace the motor cooling system.
LED Operator Display
Fault Name
oH4
Motor Overheat Fault (PTC Input)
• The motor overheat signal to analog input terminal A1 or A2 exceeded the fault detection level.
• Detection requires that multi-function analog input H3-02 or H3-10 = “E”.
Cause
Possible Solution
Motor has overheated.
• Check the size of the load, the accel/decel times and the cycle times.
• Decrease the load.
• Increase the acceleration and deceleration times (C1-01 through C1-08).
• Adjust the preset V/f pattern (E1-04 through E1-10). This will mainly involve reducing E1-08 and
E1-10. Be careful not to lower E1-08 and E1-10 excessively because this reduces load tolerance at
low speeds
• Check the motor-rated current.
• Enter the motor-rated current as indicated on the motor nameplate (E2-01).
• Ensure the motor cooling system is operating normally.
• Repair or replace the motor cooling system.
LED Operator Display
Fault Name
oL1
Motor Overload
The electrothermal sensor tripped overload protection.
Cause
Possible Solution
Load is too heavy.
Reduce the load.
Cycle times are too short during acceleration
and deceleration.
Increase the acceleration and deceleration times (C1-01 through C1-08).
• Drive overloaded at low speeds.
• Overload may occur at low speeds when
using a general-purpose motor, even if
operating within the rated current
limitation.
• Reduce the load.
• Increase the speed.
• If the drive is supposed to operate at low speeds, either increase the motor capacity or use a motor
specifically designed to operate with the drive.
6.4 Fault Detection
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
235
6
Troubleshooting
7/16/2008-13:23
Содержание V1000
Страница 11: ...Table of Contents This Page Intentionally Blank 10 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 27: ...1 4 Component Names This Page Intentionally Blank 26 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 37: ...2 2 Mechanical Installation This Page Intentionally Blank 36 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 63: ...3 12 Wiring Checklist This Page Intentionally Blank 62 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 221: ...5 11 U Monitor Parameters This Page Intentionally Blank 220 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 273: ...7 5 Drive Replacement This Page Intentionally Blank 272 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 287: ...8 6 Connecting an Option Card This Page Intentionally Blank 286 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 297: ...A 6 Drive Derating Data This Page Intentionally Blank 296 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 379: ...C 13 Self Diagnostics This Page Intentionally Blank 378 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 409: ...Index This Page Intentionally Blank 408 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
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