YASKAWA Z1000 User Manual

HOA Keypad Display Fault Name
Uv3
Undervoltage 3 (Soft-Charge Circuit Fault)
The soft-charge bypass circuit failed.
Cause Possible Solution
The relay or contactor on the soft-charge bypass
circuit is damaged
• Cycle power to the drive and see if the fault reoccurs.
• If the problem continues, replace either the control board or the entire drive. For instructions on
replacing the control board, contact Yaskawa or a Yaskawa representative.
• Check monitor U4-06 for the performance life of the soft-charge bypass.
• Replace either the control board or the entire drive if U4-06 exceeds 90%. For instructions on
replacing the control board, contact Yaskawa or a Yaskawa representative.
HOA Keypad Display Fault Name
voF
Output Voltage Detection Fault
Problem detected with the voltage on the output side of the drive.
Cause Possible Solution
Hardware is damaged
Replace the control board or the entire drive. For instructions on replacing the control board, contact
Yaskawa or a Yaskawa representative.
5.4 Fault Detection
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5
Troubleshooting

YASKAWA Z1000 Specifications

General

Model	Z1000
Category	Controller
Humidity	95% RH or less (non-condensing)
Control Method	V/F Control
Frequency Range	400 Hz
Protection	Overcurrent, Overvoltage, Undervoltage, Overheat
Communication Options	Modbus
Operating Temperature	-10 to 50°C
Storage Temperature	-20 to 60°C
Altitude	Up to 1000 meters without derating
Cooling Method	Forced Air
Enclosure Rating	IP20
Voltage Class	200V, 400V