Inverters-FREQROL-D800 Series Reduced downtime
When a fault occurs, analysis functions solve the problem quickly
Troubleshooting support tool
FR Configurator2
- Graph function
The graph function using high-speed sampling is supported, allowing inverter monitor data to be displayed graphically.
Analyzing the waveform when a problem occurs contributes to identifying the cause. - Trace functionNEW
The operating status (output frequency or other data) immediately before the protective function is activated can be stored in the internal memory.
Users can display a graph or send it by e-mail to headquarters from the worksite, facilitating trouble analysis.
Supporting replacement from the previous model
FR Configurator2 (Convert function)
The parameter settings of the FR-D700 and FR-F700PJ (to be supported in April 2026) can be converted to FR-D800 parameters using FR Configurator2, simplifying replacement.
Input terminal filter
The terminal response adjustment function allows adjustment of the response time in accordance with the existing facility.
Time-saving for restoration work through easy wiring
Spring clamp terminals
Spring clamp terminals have been adopted for control circuit terminals for easy wiring.
Continuing the operation during a trouble
Emergency drive (Fire mode) NEW
The inverter can continue driving the motor in case of emergency such as a fire, since protective functions are not activated even if the inverter detects a fault.
- *: This function is disabled in the initial status. To enable this function, set Pr.523 (Emergency drive mode selection).
- *: Using this function may damage the motor or inverter because driving the motor is given the highest priority.
Use this function for emergency operation only.
The operation can be switched to the commercial power supply operation at the occurrence of a fault which may cause damage of the inverter.
Air handling system
Automatic restart after instantaneous power failure function
After an instantaneous power failure, the motor speed is detected upon power restoration, enabling a smooth restart from the coasting motor speed.
Power failure time deceleration-to-stop function
In the event of an instantaneous power failure or undervoltage, the motor can be decelerated or decelerated to a stop, and reaccelerated to the set frequency upon power restoration.
This avoids the danger caused by coasting during a power failure.
This function is effective for grinders with large inertia.
