Hello all,
We have a little project where we're tying ten 5HP 480VAC drives together on a common buss setup. These drives are on portable tables, and I'm wanting to find a way to do a quick disconnect on the DC connections. 1kV, 5-6A, 2 or 3 pole, finger safe on both the male and female side...
Hey fellers,
Long time lurker, rare poster. [smile]
I have a piece of equipment, PLC driven, which I recently upgraded with a BACnet gateway. I'm not extremely well versed in PLC programming; I'm even more of a BACnet virgin. My current PLC and HMI has a multi-state pushbutton linked to a...
Hello all,
I have something going on here that's really got me vexed. I have a 2HP VFD running on a 208/120 3Φ service, and I'm trying to measure input power with a power quality meter. One phase is reporting a negative power factor value, and I really have no idea why, unless this meter is...
Hey guys,
I'm having a hard time figuring out what kind of cord caps are used in Japan for their 200V poly-phase systems. On the wall, they use a type A (100V) like we used to use here in the states, but for 200V, I'm hitting a wall. Do they also use NEMA plugs? L15-20P, etc? I can't seem to...
Hey guys,
First off, let me apologize if this is the wrong place to post this question. I have ZERO experience regarding chemistry in general. I have a customer interested in a piece of equipment that is to be placed in an Ammonium Nitrate plant. This equipment is by weight mostly Aluminum...
Hello all,
I would like to find a small wall mounted / almost handheld GUI capable of controlling several VFDs via RS-485, without the need for PLC interface, etc. Just something small, simple.
Does such a critter exist? Any alternatives I should consider?
Thanks,
~Mark
I'm installing a 3/4 HP high speed blower on a mast under a canopy for cooling purposes. (fancy horse barn) Does that fan have to be installed on a GFCI circuit? I'm hard wiring this fan to a dedicated 20A circuit (no receptacle, no plug, just a wall switch). Everything I've found so far in...
