Frequently Asked Questions (Faqs) - Delta IED-S Series User Manual

10-10 Frequently Asked Questions (FAQs)

1. Method of Adjusting Elevator Speed
(1) Multi-step Speed Mode:
Assume that the inspection speed is at 0.5 m/s, and the actual speed is 0.25 m/s. You can
set Pr.13-03 (Elevator Rated Frequency) to Pr.13-03 × 0.5 ÷ 0.25.
(2) Direct Docking Mode:
Assume that the rated speed is 2.0 m/s, and the actual speed is 1.0 m/s. Check if Pr.13-20
(Maximum Elevator Speed Percentage) is set to 100%. If yes, you can set Pr.13-03
(Elevator Rated Frequency) to Pr.13-03 × 2.0 ÷ 1.0.
(3) Direct Docking Mode:
If elevator speed is correct, and you only need to change the highest speed for direct
docking, adjust Pr.13-20 (Maximum Elevator Speed Percentage) instead of Pr.13-03
(Elevator Rated Frequency) or Pr.13-29 (Elevator Rated Speed).
2. Reasons for Runaway
(1) Incorrect encoder type
See Section 10-2-11 Encoder Input Type Setting
(2) Too large mechanical inertia
See Section 10-5-6 Mechanical Inertia Ratio
(3) The setting value of Pr.13-03 (Elevator Rated Frequency) is larger than that of Pr.13-04
(Motor Rated Frequency)
3. Method of Adjusting Inaccurate Stop Position for Direct Docking (Overshoot)
(1) Decrease Pr.04-08 (Deceleration)
(2) Increase Pr.04-17 (Deceleration Arrival Time S4)
Chapter 10 Auto-tuning Process | IED-S
10-33