I have small piece of industrial type equipment with DC drives, heaters, dc power supply, PLC and servo drive. The motor and heaters all run in cyclic mode. When I calculate my protection current the total load is almost 30 amps of 230vac. When I place a clamp on amp meter and monitor the peak...
I have an application with 208 to 120 transformer single phase needed. I have 4 amps continous load, 2x 8.5 amp non-continous heater load and 7 amp non-continous heater load. The total amp draw is 28 amps. The non-continous is on for no more than 1 minute at start-up, the rest of the time it is...
I have a 250 HP dc motor that seems to slowly short the shunt field. The motor is a shunt, series motor. The shunt field had similar problem two years ago. I am looking at application speed. I was also considering if there is something in the Drive that could be out of adjustment and slowly...
In a manufacturing facilty is there a reference for clearance of sprinkler head from ceiling? Is there a min or max distance from ceiling? The facility produces plastic piping
I have a motor with a fused disconnect. The disconnect is mounted within several feet of the motor. It is in a room that has five other motors. We have disconnects for each motor. The room houses a industrial water filter pool and these are the circulating pump motors. What is the NEC reference...
I have been programming with A-B and GE. In their programming software they display and manipulate numerical values in a decimal format. I have resently been exposed to programming an Omron CPM2A plc. I have a real problem tracking when the result of an instruction is going to end up with a Hex...
My functionality in Excel is limited, however Iam currently looking at options for recording data in my plant. I can get real time information to Excel, I just dont know if I can use Excel to histrically save this information into retrievable files?
Iam having trouble learning about the programming for the cpm2a. The pulse instructions are considered expnasion instructions. When I try to download my program I get a download error message that the DIP switch setting or PC setting are not right. I have checked the default settings in the PC...
I posted this in motor and controls forum, then realized this forum is probaly more appropriate. I have a vacuum tank that I currently control vacuum with a proportional valve (with mechnical linkages). I am looking to improve my control. I was wondering if I could control the vacuum by changing...
I have a project to improve the control of a vacuum tank in my process. Currently I have a proportional valve that opens and closes based on vacuum setpoint. My question is can I change the speed of the vacuum pump and get the same or better results? I have 3 phase 460V motor.
I have ocassionally seen reference to user web browsers to monitor PLC information. This also translates to web browsers used as HMI. Do I have a misunderstanding of this, if not what is the basic concept on this and where can I learn more on this subject?
Iam currently setting up a TCP touchscreen. My system has five 90/30's on a multidrop. The TCP configuration is looking for a 6 digit identifier for the SNP address. If my PLC has a SNP address of 6 what would the 6 digit identifier be? I have tried 000006. Iam waiting on response from my local...
I am wondering if anyone has had any problems running GE' logicmaster 90 on a windows 2000 operating system? I have not run logicamaster on 2000 yet. My company has an old laptop with 2000 on it. I want to give it to my maint. dept. They are familiar with logicmaster. I have no need to buy...
I looking for information on using ethernet to retrieve information directly from my PLC's (GE 9030). I would like to develop my own monitoring HMI. I need to understand the basic addressing structure and how to point to specific location in a PLC. I will either use VB or pull the information...
What is the proper way to supply 240v heaters. I need to use a three phase transformer to supply multiple heaters in a production environment. My main concern is the safety factor. What is the difference/advantages between transformers with a Delta or a WYE secondary? Second part of question...
