DWCT
Brand: Hengda
Number of switches: bipolar
Start-up mode: the push-button switch
Rated voltage: 380V
Panel material: unknown
Processing customization: Yes
Available for sale: worldwide
Type: Install the right-angle knob subswitch horizontally
Model: QCX-H2B / 80T + 50T
QCX-H2B / 80T + 50T Weight Limiter
product description:
The overload limiter measures the weight of the load through the weight sensor, and the instrument displays the actual load in real time. When the load reaches the set value of its rated load, the acoustic and light alarm letter is issued, and the switch quantity output can be given.The whole system consists of sensors, connecting cables, microcomputer host, etc.
Overload limiter is composed of sensor, operational amplifier, control actuator and load indicator for integrating display, control and alarm functions.When the crane lifts the article, the sensor transforms and transforms the load weight into an electrical signal, which is calculated and amplified to indicate the value of the load.An early warning signal is issued when the load reaches 90% of the rating; when the load exceeds the rated load, cut off the power source of the lifting mechanism.
application area:
Overload limiters are widely used in bridge-type cranes and lifts.
technical feature:
1. Suitable for the display and control requirements of road 2 or above weight signals, equipped with 5 relays that can meet 5 state control requirements;
2. Large-screen blue-screen LCD display, graphic text, simulation and dynamic display;
3. Single-chip microcomputer control, integrated integrated circuit, RS485 and 4~20mA interface can be reserved for remote control;
4. In addition to the actual weight number display, there is also a load rate percentage bar chart display;
5. All the parameters are displayed on one screen, prompting the operation of Chinese characters.
Main indicators:
(1) Scope of application: 5-600 t main and secondary hook crane, gate hoist and other double lifting point type lifting mechanism
(2) Action error: -3[%]~+3[%](F.S)
(3) Comprehensive display error: -5[%]~+5[%](F.S)
(4), Alarm point
Light load control: 20 [%] of the rated starting weight
Warning and alarm: 90 [%] of the rated starting weight
Delay alarm: 105 [%] of rated starting weight (relay action after 2 seconds of continuous overrun time
Immediately alarm: 110 [%] of rated starting weight (light load value, warning value, delay alarm value, overrun time can be set manually)
(5) Sensor overload capacity is 150 [%]
(6) Power supply voltage: AC 220V / 380V ± 10 [%] 50HZ
(7) Use of environmental conditions
Temperature range: -20℃ ~ + 60℃
Relative Humidity: 90 [%] RH
(8) Relay contact capacity: 30A / 220V, 15 A / 380V
(9) Sensor protection grade: IP68
