Detailed Product Description

Typical application
Water supply of fire protection,central air-conditioning system,cycle cooling water,industrial boiler,oil transpotation pump,water and sewage treatment
Features
1. Control mode: V/F control
2. Overload capacity: 120% rated current for 60s
3. Speed accuracy: ±0.5% max. Speed (SVC)
4. Speed adjusting range: 1: 100
5. Multi-steps speed control: 16 steps
6. Built-in DC reactor from 18.5KW to 90KW to improve power factor
7. Timing control: set eight pressure reference in specific time period
8. PID control: constant pressure regulation
9. Control up to 7 different pumps automatically according to pressure feedback, store specific rated current separately
10. Energy saving function: stop automatically when flow is smaller
11. Timing switchover function: prevent pump from rust, balance every pump lifetime
12. Over pressure/under pressure alarm, record the faulty pump and switch the spare pump automatically.
13. Dormant control
14. Built-in RS 232
15. Liquid level detection and control
16. LCD keypad: parameter download and upload, English version
17. Automatic voltage regulation (AVR): maintain output voltage stable when input voltage fluctuate
18. Multi-functional Quick/Jog key: access common used parameter quickly
19. SHIFT key: scroll common used parameter circularly
20. Simple PLC, multi-Speed control function: 16-speed control
21. Taverse control function
22. Length and time control function
23. None-stop function while instantaneous power failure
24. Speed trace function: smoothly start the running motor
25. QUICK/JOG function: multi-function shortcut key defined by user
26. Up to 27 functions for failure protection: over current, over voltage, under voltage, over temperature, phase failure, over load etc.
27. Option card needed: water supply control card

3 phase 220/230V/380V/415V/440V/460V/480V/525V±15%
5.5kW-630kW