Improved reliability and easy maintenance.
Spring clamp terminals provide high reliability and easy wiring.
The inverter with the safety stop function can comply with the safety standards without incurring too much expenses.
Safety stop function
The FR-D700 series is compliant to the EU Machinery Directive without the addition of previously required external devices. Operation of an external Emergency Stop device results in a highly reliable immediate shutoff of the D700's output to the motor.
This safety stop function conforms to the following standards.
Long-life design
- The design life of the cooling fan has been extended to 10 years*3. The life of the fan can be further extended utilizing the it’s ON/OFF control.
- The design life of the capacitors has been extended to 10 years by the adoption of a capacitor endures 5000 hours at 105°C surrounding air temperature*3*4.
- Life indication of critical components
*4 : Output current: 80% of the inverter rated current
*5 : Excerpts from "Periodic check of the transistorized inverter" of JEMA (Japan Electrical Manufacture's Association)
Leading life check function
Degrees of deterioration of main circuit capacitor, control circuit capacitor, and inrush current limit circuit can be monitored.
· Trouble can be avoided with the self-diagnostic alarm*6 that is output when the life span is near.
*6 : If any one of main circuit capacitor, control circuit capacitor, inrush current restriction circuit or cooling fan reaches the output level, an alarm is output. Capacity of the main circuit capacitor can be measured by setting parameter at a stop and turning the power from off to on. Measuring the capacity enables alarm to be output. The cooling fan outputs alarm by using fan speed detection.Enhanced function
New functions and useful functions from superior models support all sorts of applications.Regeneration avoidance function
For a pressing machine and fan rotated faster than the set speed due to the effect of another fan, a trip is less likely to occur by automatically increasing frequency at regeneration.
Optimum excitation control
This control enables the motor efficiency to its optimum. More energy saving is possible in applications with variable load torque characteristic such as fan and pump.
Power failure-time deceleration-to-stop function
The motor can be decelerated to a stop when a power failure or undervoltage occur to prevent the motor from coasting.
For fail-safe of machine tool, etc., it is effective to stop the motor when a power failure occurs.
Dancer control
Entering position detection signal of dancer roll to use PID control enables tension control by dancer roll.
Traverse function
Traverse function for wind-up drum of spinning machine and wiredrawing machine prevents unevenness and deformation at thread winding.