DXZ Adjustable High Limit Switch

Product Introduction ：

Tower Crane Lifting Height Dxz yellow color Multifunction Limiter

Dxz multi-functional travel limiter is also called Dxz multi-functional travel limiter,Dxz crane lifting limiter, Dxz multi-functional limiter, Dxz limiter, Dxz limiter, dxz multi-functional limit switch. Dxz type multi-functional travel limiter is an essential safety protection device for crane

Dxz multi-function travel switch, limit device is suitable for AC 50 Hz, voltage to380 V, DC voltage to 220 V control circuit, as the control of the movement of the travel mechanism or change its direction of movement or speed.

Dxz type multi-functional travel limiter can be widely used in construction, port, miningａnd other industries of lifting, transmission machinery space coordinate control and limit.

Dxz type multi-functional travel limiter has the characteristics of small volume, multi-function,high precision, adjustable limit, strong versatility and easy maintenance, installation and use adjustment.

Basic information:

Application:

●Two way deceleration (or alarm) and limit of crane.

●Over lift and over low (or over high) limit and protection.

●Amplitude forward (or backward) terminal deceleration and terminal protection.

●Rotary forward and reverse limit protection.

●The limiter with sensor outputs electric signal to ZXY display instrument.

●It can simulate and display the instantaneous space position of the travel.

●It is suitable for the control and lifting limit of double beam crane, gantry crane and winch.

Features:

●Small size.

●Many functions.

●High precision.

●Adjustable limit.

●Strong versatility.

●Easy to maintain, install and adjust.

Technical parameters:

●Working environment: ambient temperature: 233-328k (- 40 -- + 55 ℃), relative humidity: nomore than 90%;

●transmission ratio: 1:13--1:960;

●repeat positioning accuracy: the angle error of memory cam is not more than 0.005rad;

●Rated voltage: AC: 15v-250v; DC: 30V;

●control circuit: the standard design circuit is 1-4, which can be increased to 5-6 control circuitsaccording to the needs of users;

Installation and adjustment:

The memory cam and micro switch corresponding to the adjusting shaft of Dxz multi-function travel limiter are as follows:

A、1Z—1T—1WK；

B、2Z—2T—2WK；

C、3Z—3T—3WK；

D、 Z—4T—4WK；

Adjustment program:

1. Remove the upper cover, check and tighten the 2-m3 × 55 screws.

2. Loosen the M5 nut.

3. If necessary, turn the controlled mechanism to the specified position (no-load), then the micro switchcorresponding to the action of the mechanism should be switched instantaneously. That is: adjust the corresponding adjusting shaft (z) to make the memory cam (T) press down the contact of micro switch (wk).

4. Tighten the M5 nut. (the nut must be tightened, otherwise memory disorder will occur).

5. The mechanism should run repeatedly without load for several times to verify whether the memory positionis accurate. (repeat the above adjustment in case of error).

6. Confirm that the position meets the requirements; tighten the M5 nut and install the cover.

7. After the mechanism works normally, it is necessary to check whether the memory control position changesfrequently so as to correct it in time.

Structure and working principle:

●1.1 structure of dxz multi-function travel limiter: dxz multi-function travel limiter is composedof high-precision reducer with large transmission ratio, mechanical memory control mechanism and sensor synchronized with its output shaft.

●1.2. Working principle of dxz type multi-functional travel limiter: the displacement signal ofdxz type multi-functional travel limiter synchronized with the controlled mechanism is connected with the input shaft of the limiter after the speed change of the external change gear, and is converted into the angular displacementsignal of the output shaft after the speed change of the crane reducer.

Instructions for ordering:

●1.1 functions of multi-function lifting limiter model:

According to the needs of users, according to the following examples, the accurate product specificationsａnd quantity.

●1.2 see basic information for serial number of standard transmission ratio

Example 1: dxz-4 / 4

That is: the number of control loops for limit is 4, and the transmission ratio is 1:60.

Example 2: dxz-6 / F

That is: the number of limit control loops is 6, non-standard; the transmission ratio is 1:600.

Product Detail: