Troubleshooting the Yaskawa Z1000. Conditions such as overvoltages can trip faults and alarms so the display is your guide obviously.
It is important to distinguish between faults and alarms to determine the proper corrective actions. When the drive detects a fault, the ALM indicator LED lights, the fault code appears on the HOA keypad, and the fault contact MA-MB-MC triggers. An alarm is present if the ALM LED blinks and the fault code on the HOA keypad flashes. Refer to Minor Faults and Alarms in the manual for a list of alarm codes.
Yaskawa Z1000 Faults / Yaskawa Z1000 Alarms
This is just a list of the minor fault and alarms, it can be very helpful though.
- bAT HOA Keypad Battery Voltage Low
- bb Drive Baseblock
- bUS Option Card Communications Error
- CALL Serial Communication Transmission Error
- CE MEMOBUS/Modbus Communication Error
- CrST Cannot Reset
- dnE Drive Disabled
- EF Run Command Input Error
- EF0 Option Card External Fault
- EF1 External Fault (input terminal S1 to S7)
- EF2 External Faultt (input terminal S1 to S7)
- EF3 External Faultt (input terminal S1 to S7)
- EF4 External Faultt (input terminal S1 to S7)
- EF5 External Faultt (input terminal S1 to S7)
- EF6 External Faultt (input terminal S1 to S7)
- EF7 External Faultt (input terminal S1 to S7)
- FAn Internal Fan Fault
- FbH Excessive PI Feedback
- FbL PI Feedback Loss
- Fn1 External Fan Fault
- inTLK Interlock Open
- LT-1 Cooling Fan Maintenance Time
- LT-2 Capacitor Maintenance Time
- LT-3 Soft Charge Bypass Relay Maintenance Time
- oH Heatsink Overheat
- oH2 Drive Overheat
- oH3 Motor Overheat
- oL3 Overtorque 1
- ov Overvoltage
- PASS MEMOBUS/Modbus Test Mode Complete
- SAFE Customer Safety
- SE MEMOBUS/Modbus Test Mode Fault
- TdE Thermistor Disconnect
- TIM Time Not Set
- UL3 Undertorque 1
- UL6 Undertorque 6
- Uv Undervoltage
- voF Output Voltage Detection Fault
- WrUn Waiting for Run
Overall, these are reliable drives and shouldn't fault out all that often. The Yaskawa Z1000 is known for its energy-saving capabilities, precise motor control, and user-friendly design. Some notable features of the Z1000 include:
- Energy Efficiency: The Z1000 incorporates advanced control algorithms and energy optimization features to help reduce energy consumption in HVAC systems. It can provide significant energy savings by matching motor speed and torque to the system requirements, resulting in reduced energy costs.
- Built-in Harmonic Suppression: The Z1000 includes a built-in harmonic filter, which helps mitigate the adverse effects of harmonic distortion on power quality. This feature allows the drive to comply with power quality standards and helps prevent issues caused by harmonics in the electrical system.
- Easy Installation and Configuration: The Z1000 is designed with user-friendly features to simplify installation and configuration. It includes an easy-to-use keypad interface with intuitive menus for drive setup and parameter adjustments. Additionally, it offers various communication options for seamless integration into building automation systems.
- Robust Performance and Reliability: The Z1000 is engineered for reliable and efficient operation in demanding HVAC applications. It is built with high-quality components, robust construction, and protective features to ensure long-term performance and durability.
- Comprehensive Protection and Diagnostic Features: The Z1000 offers a range of protection and diagnostic features to safeguard the drive and connected equipment. It includes motor overload protection, short circuit protection, phase loss protection, and fault diagnostics to help identify and troubleshoot issues quickly.