5.3 Description of Function Codes 5.3.5 H codes (High performance functions)
Magnetic flux level during deceleration (rate of voltage increase) (d90)
• Data setting range: 100 to 300(%) (factory default: 120%)
If too large a value is set for d90, excessive current will flow, and the motor protection electronic thermal overload
relay may be triggered.
This function is valid only when the motor is decelerating, and has no effect if a braking load is applied
when the motor is accelerating, or running at constant speed. When anti-regenerative control of the torque
limiter is enabled (H69 = 2, 4), the deceleration characteristic is disabled.
By enabling H71, motor loss increases, and the electronic thermal overload relay function may be
triggered, causing the inverter to trip if it decelerates frequently. If this happens, connect a braking resistor.
Main power shutdown detection (Mode selection)
This function monitors the AC input power supply of the inverter to see if the AC input power supply (main circuit
power) is established and prevents inverter operation when the main circuit power is not established.
Disables main circuit power cutoff detection
Enables main circuit power cutoff detection
With power supply via a PWM converter or DC link bus, there is no AC input. When the data for H72 is “1,” the
inverter cannot operate. Change the data for H72 to “0.”
For single-phase supply, consult your Fuji Electric representative.
Torque limiting (Operating conditions selection)
Torque limiting (Subject of control)
Torque limiting (Applicable quadrant)
See F40, F41.
Torque limiter (Braking) (Frequency rising limiter for braking) (Refer to H69)
The torque limiting (braking) (frequency rising limiter) setting is described in detail in the function code H69 section.
Service life of DC link bus capacitor (Remaining time)
Reference function code: H81 Warning selection 1
Indicates the time remaining before the end of service life of the DC link bus capacitor.
Transfer the DC link bus capacitor life data when replacing the printed circuit board.
• Data setting range: 0 to 87600 hours (set in 10 hour increments)
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