JNZT series DC speed regulating cabinet
JNZT series DC motor speed control cabinet (hereinafter referred to as the DC speed regulation cabinet) is designed for DC motor drive system, power supply cabinet manufacturing. The DC speed regulation cabinet with European brands such as SIEMENS, DC speed or speed simulation components as the core control unit, according to the signal tachogenerator or photoelectric encoder speed feedback element, armature voltage or the excitation current automatically adjust the parameters of DC motor running in accordance with the pre-set parameters, the DC motor starting, stable operation and wide range speed control.
Due to the advanced design and excellent material selection, the DC speed control cabinet has the advantages of fast response speed, wide speed range, high precision and strong protection function
The DC speed regulating cabinet is matched with a direct current motor (e.g. Z2, Z4), and can be widely used in printing and dyeing, textile, paper making, metallurgy, etc.,
Printing, recreational facilities and rubber, plastics, cement, food manufacturing and other industries
- for motor work rotation in one direction, the system only need to run in the first quadrant (or third quadrant), using reversible DC motor speed control cabinet can, for example, papermaking, printing, textile, printing and dyeing, rubber, plastics and other industries.
• if the motor needs fast braking, frequent start, fast forward and reverse, the potential energy conversion of the work place, the system needs to be in the four quadrants are normal operation, should use reversible DC motor speed control cabinet
For the motor for a single direction of rotation of the work place, can choose analog signal speed control cabinet;
- for with tachogenerator or photoelectric encoder, and the need to work the system frequent positive inversion, to be used in digital signal control cabinet. Digital control cabinet with multiple input and output interface, realize the remote control of the computer, meet the requirements of automation high precision speed control and the requirement of the production line.
Three, performance parameters • power supply: 45 ~ 65Hz, from 110 to 660V + + 10% three-phase AC power. • speed ratio: better than 100:1
- speed response: analog cabinet delta n < 3%, the response time of less than 0.3 seconds; digital cabinet
• variable speed is not limited, the response time is not more than 0.1 seconds
- speed precision: encoder feedback, better than 0.01%; tachometer feedback, voltage feedback is better than 0.1%, better than 2%. - overload capacity: 150% rated load is less than 2 minutes; 200% of the rated load is less than 10 seconds. - protection function: control cabinet with over-current, leakage, missing / wrong phase, speeding, stall, field failure and thyristor trigger different protection function. In addition, the customer according to the actual need to use the motor over temperature, velocity feedback, zero speed detection and protection function. The abnormal state of steady state logic
|Type||Output current(A)||Motor power(KW)||Control cabinet dimension(mm)||Mounting dimensions(mm)|