YASKAWA P1000 Technical Manual

Digital Operator Display Fault Name
Cause Possible Solution
Option card or hardware is damaged
• Cycle power to the drive.
• If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a Yaskawa
representative for instructions on replacing the control board.
Digital Operator Display Fault Name
to
oFC50 to oFC55 Option Card Error Occurred at Option Port CN5-C
Cause Possible Solution
Option card or hardware is damaged Refer to the option manual for details.
Digital Operator Display Fault Name
oH
Heatsink Overheat
The heatsink temperature exceeded the overheat pre-alarm level set to L8-02. The default value for L8-02
is determined by drive model selection (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 selection (C6-02).
Internal cooling fan is stopped
• Replace the cooling fan.
• After replacing the cooling fan, set parameter o4-03 to 0 to reset the cooling fan maintenance.
Digital Operator Display Fault Name
oH1
Overheat 1 (Heatsink Overheat)
The heatsink temperature exceeded the drive overheat level. Overheat level is determined by drive
capacity (o2-04).
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 selection (C6-02).
• Reduce the load.
Digital Operator Display Fault Name
<1>
oH5
Motor Overheat (NTC Input)
The motor temperature exceeded the level set to L1-16 (or L1-18 for motor 2)
Cause Possible Solution
Motor has overheated
• Reduce the load.
• Check the ambient temperature.
<1> Detected in models 4A0930 and 4A1200.
Digital Operator Display Fault Name
oL1
Motor Overload
The electronic motor overload protection tripped
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 C1-04).
6.4 Fault Detection
YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual
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6
Troubleshooting

YASKAWA P1000 Specifications

General

Operating Temperature	-10°C to +50°C (14°F to 122°F)
Cooling Method	Fan Cooled
Output Voltage	0-Input Voltage
Output Frequency	0-400 Hz
Frequency Range	0.1-400 Hz
Power Rating	0.4 kW to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheat, Short Circuit, Ground Fault
Protection Features	Electronic Thermal Overload Protection
Communication	Modbus RTU
Communication Interface	RS-485
Humidity	5% to 95% (non-condensing)
Altitude	Up to 1000m (3280ft) without derating
Enclosure Rating	IP20