Motors & Motor Controls en Error Light on Industrial Press <div class="node-body forum-body"><p>Hello all,</p> </div><p><a href="" target="_blank">read more</a></p> Motors & Motor Controls Thu, 13 Oct 2016 18:49:28 +0000 141281 at VFD FAULTS <div class="node-body forum-body"><p>I have a Powerflex 40 that is giving me a fault code 71, which is NET ADAPTOR LOSS, quite frequently. &nbsp;It does seem happen at relatively simular&nbsp;times of the day, although nothing else in the same MCC seems to be affected. &nbsp;Does anyone have any experience with this and what have you found to be the culprit? &nbsp;Also another thing that seemed odd was when the drive faults and I reset the drive on the HIM and start again, the HIM shows amps being drawn but no hertz. &nbsp;Power has to be cycled for the motor to start. &nbsp;</p> </div> Motors & Motor Controls Sun, 11 Sep 2016 05:51:50 +0000 139861 at Motor Protection Fuse Size <div class="node-body forum-body"><p>Hi there! I&#39;m looking for some advice.</p> <p>I&nbsp;want to know if a fuse rating of 12R, 2.54kV&nbsp;can be used for a motor rated&nbsp;2.4kV,&nbsp;60 Hz, 3-phase,&nbsp;462kW,&nbsp;620 Hp,&nbsp;130A. Is the mentioned fuse size&nbsp;suitable for the motor? The existing fuse was 12R, 5.08kV&nbsp;max. How does my suggested fuse&nbsp;differ?</p> <p>Thank you.</p> </div> Motors & Motor Controls Wed, 03 Aug 2016 08:36:34 +0000 138531 at Motor Controller for Submersible Pump <div class="node-body forum-body"><p>Which is a more suitable motor controller for a 30 HP&nbsp;submersible pump;&nbsp;wye-delta&nbsp;or autotransformer? Which is more advantageous? Can anyone let me see a sample schematic diagram for autotransformer controller, with auto/manual selector? I&#39;d&nbsp;like to integrate the deep&nbsp;well level and&nbsp;water tank level switch for the pump auto mode, and want to know where to connect the level switch terminals.</p> </div><p><a href="" target="_blank">read more</a></p> Motors & Motor Controls Wed, 13 Jul 2016 06:34:42 +0000 137721 at wye delta control computation <div class="node-body forum-body"><p>I have two&nbsp;motors: one is rated 30 hp&nbsp;and the other&nbsp;25 hp. They are both submersible pumps. They have six leads, wye to delta or whatsoever. All I&nbsp;want to do is to make a wye-delta control. But my problem is I don&#39;t&nbsp;know how to make it. I mean the computation from main breaker to sub breaker, wire size to be used in breaker to contactor and from overload to motor. Can you please help me?</p> </div> Motors & Motor Controls Sat, 16 Apr 2016 15:06:00 +0000 134531 at VFD Overcurrent at Acceleration Error <div class="node-body forum-body"><p>Can someone&nbsp;help me?</p> <p>I have a problem in a VFD&nbsp;(delta2000). It always errors with OCA (OVER CURRENT AT ACCELERATION). We already adjusted the acceleration time and decceleration time but nothing happened.&nbsp;The motor has&nbsp;a rotary encoder. I&#39;m&nbsp;wondering if&nbsp;the rotary encoder is the causing this problem.</p> </div> Motors & Motor Controls Tue, 16 Feb 2016 07:37:55 +0000 132451 at Unbalanced Voltage @ VFD Output <div class="node-body forum-body"><p>In my 45kW&nbsp;VFD, output is unbalanced by 20V&nbsp;so it tripped. Input supply is balanced and load is also balanced so why would the output be&nbsp;unbalanced?</p> </div> Motors & Motor Controls Mon, 26 Oct 2015 03:16:07 +0000 128941 at Industrial Control Class 1, 2, 3 wiring <div class="node-body forum-body"><p>Hello</p> <p>&nbsp;</p> </div><p><a href="" target="_blank">read more</a></p> Motors & Motor Controls Mon, 29 Jun 2015 18:44:54 +0000 123341 at Calculating Motor Parameters from Motor Namplate <div class="node-body forum-body"><p>Hello everyone,&nbsp;</p> <p>Can anyone state a procedure to calculate motor parameters, or simply stator and rotor inductance/ resistance, from motor nameplate data?</p> </div> Motors & Motor Controls Thu, 25 Jun 2015 07:06:45 +0000 122921 at VFD Overcurrent Fault <div class="node-body forum-body"><p>I work in a plant the produces power cables for the oil and gas industries. We have an extrusion line that has a 150 HP&nbsp;motor being run by a 200 HP&nbsp;VFD (Baldor VS1GV). We are currently having issues with overcurrent faults. In conjunction with the overcurrent fault, we have also seen (on occasion and once all four at the same time) high DC buss faults and peak overvoltage faults. We have checked the mechanical drive train (gearbox, belts, bearings, and pulleys) and all appear to be in good working order. We have performed an&nbsp;auto tune and everything passed fine.</p> </div><p><a href="" target="_blank">read more</a></p> Motors & Motor Controls Thu, 09 Apr 2015 23:31:30 +0000 113631 at