Industrial SGMAS Series 3000RPM Yaskawa AC Japan Servo Motor 400W SGMAS-04AGA-SU12

Industrial SGMAS Series 3000RPM Yaskawa AC Japan Servo Motor 400W SGMAS-04AGA-SU12
 
 
 
QUICK DETAILS

OTHER SUPERIOR PRODUCTS

Working on a job site with an experienced technician, you are tasked with trying to determine whether the line currents going to a three-phase electric motor are balanced. If everything is okay with the motor and the power circuitry, of course, the three line currents should be precisely equal to each other.

The problem is, neither of you brought a clamp-on ammeter for measuring the line currents. Your multimeters are much too small to measure the large currents in this circuit, and connecting an ammeter in series with such a large motor could be dangerous anyway. So, the experienced technician decides to try something different – he uses his multimeter as an AC milli-voltmeter to measure the small voltage drop
across each fuse, using the fuses as crude shunt resistors:

Our presence as a world leader in the engineering and production of DC motors is built upon a distinguished record of pioneering achievements in the steel and mining industries.
Working with the steel industry, Westinghouse developed and installed the:
❙ first electric motors in an American steel mill (1891)
❙ first electric drive for main rolls
❙ first reversing mill drive
❙ first large twin-motor reversing mill drive Some of our significant achievements in the mining industry include the:
❙ first application of separately excited shunt-wound DC motors
❙ first Ward Leonard dragline system
❙ first vertical swing motors
❙ first laminated frame generators
❙ first dual circuit generator system
Perpetuating a proud tradition, TECO-Westinghouse has continued through the years to refine our DC motor product lines with quality-enhancing
features that secure our position of leadership within the market.

Grounding

(a) Motor Frame

Always connect servomotor frame terminal FG to the SERVOPACK ground terminal . Also be sure to ground the ground terminal .

If the servomotor is grounded via the machine, a switching noise current will flow from the SERVOPACK power unit through motor stray capacitance. The above grounding is required to prevent the adverse effects of switching noise.

(b) SynqNet Communication Cable

Make sure to keep the box or power line separate from the SynqNet communication cable because the cable is easily influenced by noise.

If noise is a problem, coil the communication cable two turns around the ferrite cores on the SERVOPACK end and the controller end. Refer to the following diagram.

(c) Noise on the Reference Input Line
 

If the reference input line receives noise, ground the 0 V line (SG) of the reference input line. If the main circuit wiring for the motor is accommodated in a metal conduit, ground the conduit and its junction box. For all grounding, ground at one point only.

All grounds must be made to only one point in the system.

Using Noise Filters

Use an inhibit type noise filter to prevent noise from the power supply line. The following table lists recommended noise filters for each SERVOPACK model.

Install a noise filter on the power supply line for peripheral equipment as necessary.

SIMILAR PRODUCTS