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  1. RIBU1C wiring to a Siemens Motor Starter

    Commercial Electrical Forum
    Hello, Just reaching out to see if anyone can help me out. I am doing controls and I am wiring a RIBU1C to a motor starter. The print is telling me to take the coil 10-30 vac/vdc (white/blue) lead to the 10-30 vac/vdc. Take the coil common (wht/yellow) to the coil common. Does anyone know what...
  2. interview question. Help!!!

    PLCs, VFDs, Motors and Controls
    Hi everyone. I've got a question from an employer. Please give me some explaination. Thanks in advance. A motor 50kw controlled by v/f method. now F=50hz. If f=40hz. P=?
  3. Please help! Looking for plug and receptacle for motor control wiring.

    PLCs, VFDs, Motors and Controls
    I need to wire a 'remote' motor control station - a box with up and down buttons. I will use 14/4 SJOW cable (1 bonding conductor and 3 for control). The control voltage is 240V. What kind of plug and receptacle should I use to wire it into motor control box (it has to be unpluggable)?
  4. Need a 3 position wireless control switch

    PLCs, VFDs, Motors and Controls
    I have an 8 amp 120V motor with a 3 position switch: up, off, and down. You can see some specs and a picture here: http://www.ebay.com/itm/New-Electric-Hoist-Electric-Cable-Hoist-Electric-Winch-Lift-Cable-220-440-Pound-/291000706694?pt=LH_DefaultDomain_0&hash=item43c0fe6686 The motor comes...
  5. How can I do this? Random speed control on stepper motor.

    General Electrical Discussion
    HI, In the video below, the user has four stepper motors that he/she is controlling at random speeds. I want to do exactly what's in the video(though maybe a tiny bit faster than the motors in the video) and only with one motor. I want my motors speed to be controlled randomly as it is done in...
  6. need advice, running control wiring for a simple ac unit

    Residential Electrical Forum
    The AC unit is 208 v 30 A, i have a 2 wire 18AWG running from the unit to the furnace, connected to the Y an C terminals on the control board. From the furnace i have regular heating control wiring R,G,W running to the digital thermistat, am i correct to run another 2 wire from the terminals...
  7. Can I get rid of a motor's capacitor and operate it safely with a motor speed contol?

    PLCs, VFDs, Motors and Controls
    I have a 120 V, AC motor, 5.5 Amp that has a capacitor on it and I want to control it's speed with this controller (The Speedster) but the capacitor overheats. Would it be safe to operate this motor without the capacitor to avoid overheating it?
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