I've programmed other brands of PLCs but I'm a newby at Modicon. Can anyone shed some light or point me in the right direction on how the addressing for your symbols relate to the I/O terminals? I'm using proworx32 by the way. Most of the plcs I've worked with use X or Y, or at least have a...
My siemens rep found this for me: But it basically says what everyone elese has been saying.
3RW30: Electrically isolation and switching off in the event of an emergency off
QUESTION:How can the power system and the motor be electrically isolated from each other? How is the motor switched off...
Jraef,
You are so true. A couple of weeks ago, we changed out
an ACL starter with a softstarter and we had to modify the push button controls etc. That's when we discovered that
the softstarter does allow the roughly 277-280VAC (Line to ground) to bleed through. My electricians didn't like that...
Thank you both for the prompt responses.
I'm not sure if we have any analog meters
but I will check. If not I will add a resistive load
and verify accordingly. My main concern was that an electrician would not get shocked while troubleshooting.
Thanks again.
Application:
We have six 5hp 3ph 460V motors.
The wires are all in the same conduit trunkline back to the MCC. (longest run 225ft.) We are using
Siemens Sirius soft starters 3rw3024. We had a situation where one of the softstarters shutdown. The amperages readings for the motors were all in...
To make a long story short: We have a highspeed sprinkler test unit that we use to shine UV light at the Detector
and place prox sensors at the nozzle. When the light is energized, a timer is activated. Once the the water comes out the nozzle, it stops the timer; hence measuring the response...
I'm trying to get a 12VDC 100W Halogen bulb to work.
(eiko 100w 12v h3 pk22s 01015)
Measuring across the electrodes, I noticed it didn't have
any resistance. My adjustable DC power supply sees it as a "short" (wire). I read that these bulbs increase in resistance as they warm up. Do I need some...
