| Electronic Speed Controller |
 |
- Constructed on a single printed circut board 220/240 volt AC supply
- Compatible with computer and transducer signals
- Wide speed range with excellent speed holding
- Remote control options with no distance limit
- Factory preset controls for easy installation
- Built-in adjustable dynamic controls, acceleration/deceleration and torque limit
- Minimum downtime-controller can be changed in seconds
- Many special systems and control options
|
| Specifications |
| Input power |
: |
240 VAC;+OR-15% |
| Output power |
: |
85 VDC,5.0 A |
| Speed Holding |
: |
Better than 2% |
| Standard Features |
: |
Soft Start 0-90 Sec.,Operator Controls & Maximum Torque Limit |
| Protective Features |
: |
Input fuses,low line voltage,line transients& isolated signal circuits |
| Ambient |
: |
50 degree C |
| Construction |
: |
Wall/panel Mounting |
|
| Tachogenerator |
 |
Tachogenerator is a device which generates an electrical output directly proportional to the shaft speed. The voltage thus generated is fed to a speedometer for speed measurement and/or used as feed - back signal for controlling the speed of a rotating machine / equipment. In every automatic control system, since the system performance is directly related to the performance it becomes essential that the
Tachogenerator must satisfy certain minimum requirements such as: |
| Linear |
The rectified output voltage should be strictly linear with respect to the
rotational speed |
| Output signal |
The
ripple content in the rectified output signal must be as low as possible |
| Temperature effect |
Variations in ambient temperature should have negligible effect on
the TG output |
| Long-term stability |
Instability of output cause due to aging of parts, shift in
magnetic circuits etc., should be minimum. |
|
| Unique features of Tachogenerator |
- ALINCO permanent magnet in the rotor assembly gives long term stable operation under varying ambient temperature.
- Large number of poles (48) results in a high frequency output and hence good dynamic response, linearity and wide speed control, along with low ripple content in the rectified output.
- Rotor and stator assemblies are encapsulated with epoxy resin to prevent any ingress of moistures, dust etc.
- Stator assembly is housed in cast iron body to minimize magnetic interaction and consequent losses.
- Grease filled, double shielded ball bearings are used for maintenance free operation.
- Two mounting options-foot mounted and flange mounted.
- Speedometer can be calibrated to suit the customer's requirements.
- Compact and rugged construction provides longer life with excellent performance even under severe environments.
- If required, TG can be supplied with rectifier unit, for DC operations.
|
| Technical Specifications |
| Type |
Totally enclosed |
| Class of insulation |
B |
| Voltage |
30V. AC and frequency 600Hz at 1500 rpm |
| Max. Load Resistance at Output |
600
-o- |
| No. Of poles |
48 |
| Linearity |
0.5% |
|
| Applications for Powermag E C Drive |
POWERMAG EC drives are economical and widely used for various industrial applications Cement, Rubber, Chemical, Plastic, Paper, Wire drawing, Mining,Thermal power plants, Blowers, Extruders, Kilns, Material Handling, Pumps, Screw Feeders, Conveyors, Sugar, Tea, Tobacco etc.,
POWERMAG is an simple drive,easily installed and maintained, longlife with no routine maintenance. |
| Cement Industry |
| Speed control or helper drive of rotary kiln, Proportional speed drives of supply feeders, clinker feeders and air quenching coolers
Operation of constant weighing feeders, exhaust fan or cooler grate drivers for pressure control
|
| Calendar drive |
| Operations of extruder, pelletizer, granulator etc., Operations of feed pumps, circulating pumps or other process pumps on the outputs of PID regulators.
|
| Paper Industry |
| Main drive of group drive paper machine
Starting motor for paper machine
Helper drive for paper machine
Drive of rewinder, cutter etc.
Pump drive
Propotional speed drive of hardboard corrugating machine |
| Chemical fibre Industry |
| Co-ordinate drive of resin finishing machine slusher etc.
|
| Mining Industry |
| Drive of conveyors, feeders etc.
Helper drive of long distance conveyors
Excavator drive |
| Other Industries |
| Dredger Pump Drive
Drive of bread baking machine.
Operation of fans pumps, blowers etc.,
Conveyor drive
Co-ordinate and helper drive of strip processing machine
Speed control of electric weld tubemill, rollers
Sugar Indutsry - cane carrier drive
Thermal power plants - pulverised coal feeder, raw coal feeder, trolley, drives. |
Printing machine drive
Warper drive
Rubber and chemical industries
Electric Wire making
Operation of tubing machine, extruder, wire winding etc.
Torque control of wire drawing machine
Speed control of copper casting machine |
|
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