1. Production equipment
Coolmay, which has 15 years of expertise in automation solutions for various industries, has 6000 square meters of production space and 10 production lines, many imported high-end smt placement equipment and testing equipment, and its monthly output can reach 50,000 units.
2. Certification
Coolmay has passed the ISO9001 quality management system certification and the national high-tech enterprise certification. Its products have obtained a number of utility model patent certificates and invention patents, and have repeatedly won many awards such as "Technical Innovation Award" and "Innovative Product Award".
In addition, all Coolmay products have passed CE certification.
3. Raw materials and accessories
The raw materials and parts used by Coolmay are the best: the CPU adopts imported 32-bit industrial-grade chips, the PCB board with three anti-paint protection, the relays and transistors imported from the United States, and the input and output with photoelectric isolation protection.
4. Good service
Coolmay is an original manufacturer of OEM&ODM PLC and HMI, which can meet various needs of customers. All our products have undergone 5-step strict quality control and 48 hours of aging. The products are of high quality, with a guarantee of up to 18 months and a simple return policy.
Provide free technical support, learning tutorials and video tutorials.
Provide free HMI programming software and PLC programming software.
Products Shows
LED AND LCR Keypad
Products Vedio Show:
Single multi-speed terminal elevator controller
For the elevator controller with only one multi-segment speed changing terminal, the high-speed segment and the layer speed segment are controlled by the on-off of the high-speed terminal. The wiring diagram of such elevator controller and frequency converter is as follows:
Single multi-speed terminal elevator controller
For the elevator controller with only one multi-segment speed changing terminal, the high-speed segment and the layer speed segment are controlled by the on-off of the high-speed terminal. The wiring diagram of such elevator controller and frequency converter is as follows:
Double multi-speed terminal elevator controller
When the elevator is in use, if the system's power supply suddenly fails, it may result in passengers being locked in the car.
KD600E series elevator inverter can support the emergency UPS power supply operation for emergency power outage operati-on, and the emergency signal can be received by the inverter terminal DI6. The wiring diagram is as follows:
Closed loop elevator control
KD600E series elevator inverter can support closed-loop control, and provides a variety of PG cards for use with different encoders. Please refer to Chapter 5 of KD600 series User manual for PG card information. The wiring diagram of elevat-or controller and frequency converter for closed-loop elevator control is shown in the following figure:
The KD600E driver is a special frequency converter for K-Drive elevators. They provide V/f control, including voltage and frequency separation control.
In the trend of advocating smart and simple industrial automation, environmentally friendly products, value-added solutions, K-Drive, as one of the world's leading drive manufacturers aggressively investing in R&D, production, and continuous quality improvement, is well positioned to provide its customers with technology-driven, performance-outstanding products such as VFDs, wind power converters, servo drives, HEV/EV drives, helping its customers save energy and increase industrial productivity with sustainability on the one hand, and enhancing their entire value-chain quality, delivery, and services on the other hand.
In production, rigorous quality control is implemented on components, circuit boards, and the finished goods, assuring products without defects.
| Performance | Common brands | K-Drive |
|---|---|---|
| Applicable motors | Asynchronous motors | Asynchronous /synchronous motors |
| Starting torque | 2.0Hz, 150% (sensor-less vector control) 0Hz, 180% (closed-loop vector control) | 0.5Hz, 180% (sensor-less vector control) 0Hz, 200% (closed-loop vector control) |
| Speed adjustable range | 1:100 (SVC), 1:1000 (VC) | 1:200 (SVC), 1:1000 (VC) |
| Ambient temperature (no derating required) | -10-40ºC | -10-50ºC (for most of the models) |
| Rated input voltage | 208VAC-400VAC | 208VAC-480VAC |
| Communication | Modbus RTU//ASCII | Modbus RTU//ASCII Profibus-DP, CANopen, etc. |
| Position control (fixed length, or angular positioning) | × | √ |
| Field weakening control | × | √ |
| Autotune online | Online | Online & Offline |
| Short-time ramp-up | Trip | No trip |
| Customized features (software and/or hardware) | Unprocurable or no experience | Procurable with rich experience |
All drives are well packed before shipment, fit for air shipment, sea transportation, and express delivery. Customers are able to call its own nominated forwarder or consult K-Drive logistics department for worldwide shipment services.
* Low-power inverters are packed in cardboard box, and others are in plywood cases.
* Plenty of transportation procurable globally in accordance with customer demand or K-Drive expertise.
Please leave us an inquiry for more details of our frequency inverters, like information of the model numbers, technical data, applicable application, pricing, distributor policy, lead time and/or customized functionality.
