This product is an anti-sag relay, which has anti-sag function, simplified control line, unlimited expansion of control terminal, no loop current in the control circuit when the motor is running, and prevents protection misoperation.
The DQZ-II intelligent motor controller is designed to protect motor-driven equipment from short‑term voltage fluctuations (sags) in the power grid. It uses a parallel control scheme that simplifies wiring, allows unlimited expansion of control points, and prevents false trips of protective devices.
The manual provides technical specifications, wiring diagrams, installation instructions, safety precautions, and a description of the various DQZ series models for use in chemical, petrochemical, power, and other continuous‑process installations. This manual is written in Chinese.
| Dimensions (W×L×H) | 90 mm × 115 mm × 75 mm |
|---|---|
| Wiring method | Plug‑in terminal |
| Installation method | Rail mounting |
| Installation location | Inside distribution panel, non‑corrosive environment |
| Control voltage | AC 220 V 50 Hz |
| Power consumption | < 0.3 W |
| Output load | 5 A |
| Operating indication | LED |
| Ambient temperature range | -20 °C ~ 60 °C |
| Relative humidity range | 35 % ~ 80 % RH |
| Weight | ≈ 200 g |
| Anti‑sag adjustment time | Four settings, 0.5 s ~ 8 s |
| Number of control terminals | Unlimited |
| Service life (operation count) | ≥ 30 000 cycles |
If the voltage sag duration is shorter than the set adjustment time, the motor automatically restarts when power returns; if the sag exceeds the setting, manual restart is required.
Start, stop and protection circuits are connected in parallel, so additional control points do not increase circuit complexity or affect each other, allowing unlimited expansion.
Install the controller inside a distribution panel, in air that does not contain corrosive chromium, nickel, or silver plating.