Skip to main content

Trial Run of Delta PLC


Trial Run of Delta PLC


Before Starting the Trial Run of Delta PLC anyone should check following things



Power Indication of Delta PLC

1. At the front of the MPU or the expansion unit, there is a “POWER” LED. When the MPU is powered ON, the LED (in green) will be ON. If the indicator is not on when the MPU is powered up, it means there is problem that DC power supplies to PLC. Thus, it is important to check whether the wiring of +24V and 0V are properly conducted. If ERROR LED is blinking swiftly, it means +24VDC does not supply enough power to delta PLC.

2. If the other indicator, “L. V”, that locates at the front of the extension unit is on, it means that the input power voltage to the extension unit is insufficient, and the output from the extension unit should be prohibited.

Preparation

1. Make sure that the power wiring and the I/O wiring are both conducted properly before the power ON. Please ensure NOT supply AC110V or AC220V to the I/O terminals, or the wiring might be short circuit which would damage the PLC directly.

2. After using the peripheral devices to write the program into the MPU and that the ERROR LED of the MPU is not on, it means that the program in use is legitimate, and it is now waiting for the user to give the RUN command.

3. Use HPP to execute the forced On/Off test of the output contact.

Operation & Testing DVP14SS Delta PLC:


1. If the ERROR LED of the MPU is not blinking, use the peripheral device to give the RUN command, and the RUN indicator will then be on.

2. HPP could be utilized to monitor the settings and the registered values of the timer, the counter and the data register during operation. Also it is used to force the I/O contacts to conduct the On/Off motion. If the ERROR LED is on (but not blinking), it means that the setting of the user’s program has exceeded the preset time-out limit. At this case, please turn the PLC RUN/STOP switch to STOP, and find out the address of the time-out program by special data register D1008. ”WDT” instruction can be used to solve the problem.

The PLC I/O Response Time:


The total response time of the PLC from the input signal to the output motion is calculated as follows:

“Response Time” = “input interface delay time” + “user’s program scan time” + “output motion delay time”

Labels:

Comments

Post a Comment

Popular posts from this blog

3 Channels Audio Splitter Amplifier Circuit Diagram using TL084

This is the schematic diagram of 3 channels audio splitter amplifier circuit which built using op-amp IC TL084. The 3 channels amplifier output distribution applies a single TL084.   3 Channels Audio Splitter Amplifier Circuit Diagram The very first step is to capacitive coupling having a p. 1.0 ~ electrolytic capacitor. The entries are railways Vee Y2 or 4.5 V. This enables working with an individual 9V power source. A voltage gain of 10 (1 M?/100 Kohm) is obtained in the first stage, as well as the other three floors are connected as a unity gain voltage followers. Every single output stage drives independently through an amplifier output 50 pF capacitor towards the resistance of 5.1 k ohm load. The response range is flat from 10 Hz to 30 kHz.
2 comments
Read more

Simple But Automatic Load Sensing Power Switch

This circuit will automatically switch on several mains-powered "slave" loads when a "master" load is turned on. For example, it will switch on the amplifier and CD player in a stereo system when the receiver is turned on. It works by sensing the current draw of the "master" device through a low value high wattage resistor using a comparator. The output of that comparator then switches on the "slave" relay. The circuit can be built into a power bar, extension cord or power center to provide a convenient set of "smart" outlets that switch on when the master appliance is powered (turn on the computer monitor and the computer, printer and other peripherals come on as well). Automatic Load Sensing Power Switch Circuit Diagram Parts List: Notes: This circuit is designed for 120V operation. For 240V operation, resistors R2 and R6 will need to be changed. A maximum of 5A can be used as the master unless the wattage of R1 is increased S1 provid...
Post a Comment
Read more

A basic Arduino Solar PV Monitor

I have just recently had solar pv installed, mainly to future proof my energy costs, I do not expect it to be like drilling for oil in my back garden, however the return looks to be encouraging. The install gives you another single unit meter, from this you will see the total amount the panels produce, but that is about it. I wanted to know how much the production was as it was happening, I discovered the light blinks on the front of the meter will flash 1000 times for each kWh of electricity which passes through. The rate of the flashing of the LED tells you how much power is currently passing through the meter. [ ]
Post a Comment
Read more