Last seen: Sep 19, 2026
Checked the timestamps against the compressor room. The 200hp backup compressor starts across the line within a few seconds of every one of them. It k...
What's the nameplate rpm on the motor? And is the drive in V/Hz or vector? Those two answer most of this.
Three class J fuses in a fused disconnect between the breaker and the drive. Locked out to get the cover off, then back on and measured at the line te...
Fixed speed, no demand control, that's a soft starter job. It does what the star-delta was there for, limits the inrush, without the open-transition b...
That last 20 ft is the rest of it.
Pretty sure the spare's not bad. What firmware is on the old drive and what's on the new one? Keypad, scroll into the display group, the firmware vers...
server is 12.00 with the same patch roll-up, I checked. IT turned the firewall off completely for the test, still no luck. Licence is a floating one o...
Neither yet. Does it fault at 0 Hz the instant the start goes in, or does it get a second or two into the ramp? And is any DC braking set before start...
Does that drive fault F059 when the e-stop hits, or just drop to Ready? And on the three that work, what's the run bit doing in the PLC during the e-s...
Could be the duct. A 755 puts a lot of edge on those leads. Where's the shield grounded, one end or both?