Recent content by moltra

Does anyone know of a converter or adapter that will take a device with a RS-485 output and allow it to broad over WirelessHart. I am also looking for a way to convert IO-Link to wirelessHart or another secure wireless industrial network. Thanks in advance.

I have looked in there and cannot find any requirements to do routine maintenance.

I have a couple of small electic boilers that operate around 75 psig, I am trying to set up the maintenance program on the boilers and cannot find out what the federal requirements are on them. The facility I am at is only regulated by the federal govenment (no state requirements). this boiler...

I monitored my high pressure air compressor over the weekend and noticed that I had very different PF's on the 2 phases that the monitor logs, I would like to have any and all help to explain it. Phase A had a PF of .254 Phase B had a pf of .929 and system pf was .661. These readings are an...

I am designing a system with a SLC 5/04 processor which I will be connecting to a Panelview 1000 Via DH+. Connected to the RS-232 port will be a 22-SCM-232 serial converter that is connected to a Powerflex 4 and powerflex 70 drives. What I need to know is, is there a way to connect to the...

I tried to use Allen-Bradley's drive forums and found that they had be stopped. I had some free web space on a webhosting plan. I started a site that I hope will be helpful to all automation professionals. The URL is http://www.automationweb.info. Look it over and leave me information on...

I copy the following from the PF 70 manual. "Safe Off Option, the first offering available within the DriveGuard™ series of safety solutions, prevents a drive from delivering rotational energy to motors by integrating a safety circuit with the drive’s power switching signals. This solution...

I understand that in a Cat 3 safety system that you need two ways of taking power a way. I am talking about in a Cat 1 situation.

The hardware enable on a PF700 drive takes the 24 volt control voltage from the SCRs therefore when the safety relay actuates it takes the volts off the SCRs stopping them from firing therefore stopping the motor. IT is a hardware stop not a software stop.

On my motors that run below 20hz I install a seperate powered cooling fan on the motor to keep it cool.

Why would it be a problem. It is being controlled by a safety relay that has to be mainly reset fot the machine to be restarted. and the drive must then be restarted.

I am trying to figure out how to set the time and date on a powerflex 700 drive any help would be appreciated.

I just installed 7 powerflex 700's and the way I wired the E-stop up was to use a Minatour Estop Relay with the output of the relay connected to Digital input #6. Hardware Enable Circuitry (Vector Control Option Only) By default, the user can program a digital input as an Enable input. The...

I am installing 7 powerflex 700 vfd in on of my production lines, Instead of installing 1 main contactor or 7 individual contactors for Emergency Safety requirements, I was wondering if anyone has used the hardware enable input on the VFD to shutdown the VFD when the safety relay drops out...

I am installing 7 powerflex 700 vfd in on of my production lines, Instead of installing 1 main contactor or 7 individual contactors for Emergency Safety requirements, I was wondering if anyone has used the hardware enable input on the VFD to shutdown the VFD when the safety relay drops out...