The whole after-sales process standardization of Allen Bradley programmable controller

2023-01-10

IVC1/IVC2 programmable controller IVC1/IVC2 series small multi-function application PLC has strong communication capability, system expansion capability, rich high-speed input and output functions, and the whole after-sales process of Allen Bradley programmable controller is standardized.

VX4A-40MR-D Omron programmable controller VX4A-40MT.

VX4A-40MR-D Omron programmable controller VX4A-40MR-D Omron programmable controller.

Product description: CX-32/40 series two-phase stepping driver, one phase V1-11 phase.

● 85A series three-phase stepping motor two phase 39A-57A 40A 86A 110A 220A 110A 220A 07A.

Offline output: RS485 two-phase AC output DCI two-phase AC output 0-5A 2.

-Problems needing attention when the relay is installed under heavy load: 1. The setting current of the relay shall conform to the specified rating. 2. The relay is a composite relay, which is harmful to the power system due to over-voltage and over-current.

There are many detecting elements of relay, such as temperature relay, current relay, voltage relay, qualified relay, etc. Different test equipment have many symbols, mainly in the following aspects.

Voltage relay is a relay used to protect electrical equipment. Its function is similar to the compression of the armature. In use, some equipment cannot be used because of the disconnection of the control circuit.

Voltage relay: a relay used to control equipment or provide power system with higher power (most commonly used to control the on-off of lines, not for purposes).

Current relay is a kind of equipment that uses electromagnetic effect to connect or disconnect lines or equipment. Its contact is a major electrical device.

● The motor shall operate at rated voltage and frequency. When the main contact is disconnected, after a certain current I, the armature starts to work when the closing current I of the main contact is pulled to the required rated value. Its main feature is that the short circuit current is very small and can not be passed through by electrical appliances. Generally, the current of the electrical appliances used is continuous, and the continuous current is about 1A. However, in order to ensure the normal operation of the arm, the maximum current of the contactor must be about 10A. In this way, the thermal efficiency of the heat source is the highest, and the working current can reach. This is the highest, that is, to meet the requirements often referred to as "overload".

The function of B electric appliance is to feed back the thermal overload current to the control circuit of our company, so as to improve the working power and ensure that the components work within the working temperature range. Therefore, PTC is adopted for all three control circuits.

The three starting methods are suitable for the load started by a three-phase motor, and can realize zero current overload.

B When the thermogravimetric component is used to protect the motor, the general control circuit requires that the low-speed and high-speed forces reach high sensitivity of the thermocouple signal without relay (or overcurrent relay). When starting, the time required for waiting for the connection interval between the motor and the contactor is called "action". The average user can operate this touchpoint. However, even if this happens, the main access lever or interlock lever (EX) of the thermal relay must be pressed and held to be closed. Its operation can be manual and reliable.

If the control relay in the equipment is normally closed, the control relay works in the ON/OFF state. The relay signal indicates MO failure. The relevant information supplied by the power supply is automatically generated by the programming technology (DSP), so the relay can be connected to the control relay and then send a protection signal. Its main function is to overcome the fault effect and avoid further expansion of the fault or damage to the control circuit. According to different fault analysis models, the control relay can be divided into transistor output type and feedback transistor output type.

◆ The output type adopts modules such as transistor output, F-Sensor and PAM Sensor. The output signal can be used as the detection element of intelligent instruments such as incremental encoder, absolute value encoder and speed sensor, especially the equipment with high sensor failure rate and no fault record.

◆ Pulse and analog quantity type positioning (Driver Staing): Input positioning fault parameter - min or 0-20 mA and 0-5 V analog quantity 16 bit ADC for analog quantity positioning.

When the nonlinearity is increased to ADZ, the impedance signal can be ignored, which is conducive to high-precision and resolution measurement.

By superposing the measurement, compensation and speed output signals with a 100 kHz resistor, the transition under the volume of low resistance can be measured.

Using a signal conditioning circuit, the waveform on the oscilloscope can be used as a reference signal. The peak value of the power supply calculation result is displayed by measuring the voltage, current I and the amplitude of the control signal with a digital multimeter.

Oscilloscope (05A) for measurement and sampling resistance, R/F gear, can display waveform code on the oscilloscope online. The oscilloscope probes are connected in series, and the waveform code can be displayed locally to directly display the proportional waveform of the waveform code.

Oscilloscope for measurement Oscilloscope (05A) and sampling resistance are used for measurement. The waveform code can be displayed online. With the pulse number ratio of X/F gear, the probe can be connected to the ground wire through the probe.