Toshiba AS3 Variable Frequency Drive

Sords Electric Sells Toshiba AS3 Variable Frequency Drives - Contact us HERE

The Toshiba AS3 Drive has ratings from .4 kw (.5hp) to 250 kw (450hp) in Heavy Duty or Constant Torque and .75kw (1 hp) to 315 kw (500hp) in normal duty or variable torque duty.

Buy Toshiba AS3 Drives HERE.

The high performance TOSHIBA VF-AS3 achieves high speed/real time network communication via embedded Ethernet without any optional devices, ready to meet the requirement of modern automation with IoT and Industry 4.0. Also, VF-AS3 with TOSHIBA excellent motor control technology and hardware design helps for all your applications.

The VF-AS3 has an embedded Ethernet dual port adaptor that can be used in the following Modbus TCP. The adaptor provides a set of services at the Ethernet and TCP/IP level. The dual Ethernet port adaptor offers an embedded Web server which offers comfortable displaying and commissioning functions directly from a standard web browser. The VF-AS3 supports the following Automatic IP address assignment via BOOTP and DHCP and Diagnostics and configuration via integrated Web server.

The sensor which is equipped in the machine and equipment, can be connected with VF-AS3 and the status can be monitored by network communication.

The VF-AS3 can be connected with various devices through local area network, wireless network, and the Internet. It achieves data collection to know operational status and analyze system failure. This IoT-Ready function increase productivity and reduce total cost.

For Oil & Gas / Mining Industry

Jack pumps / Compressor / Conveyor / Crushers / Compressor

Multi ratings – excellent motor control performance

The VF-AS3 has the multi ratings and can drive for various application with HD(150%- 60sec) and ND(120%-60sec). It is available for both heavy-load application and light-load application. The starting torque with sensor-less vector control is 200% with 0.3Hz or more. The VF-AS3 achieves high starting torque and high accuracy regenerative torque at low frequency.

Easy to set up with Auto-tuning function

The VF-AS3 has the Auto-tuning function that automatically optimizes the drive parameters.

The moment of inertia of machine and equipment can also be set easily by Auto-tuning function.

PM motor drive

PM motor drive technology has been implemented in VF-AS3 as a standard feature. The VFAS3 can control both induction and permanent magnetic synchronous motors with/without feedback sensor, allowing them to use for the variety f purposes. The VF-AS3 can drive both interior permanent magnetic motor (IPM) and surface permanent magnetic motor (SPM).

For Conveyor / Crane Industry

Transportation machine / Conveyor / Crushers / Compressor

Embedded positioning control

VF-AS3 has sensor / sensor-less position control with point to point, Pulse input and Orientation, which is suitable for applications such as processing machine for high precision control.

Excellent flexibility by My Function (logic function)

My function adds programming capability to the drive’s input/output signals without external relays or PLC. The function makes it possible to reduce the space and cost required for the system.  My Function has the really sequence function that combines logic operation functions. The relay sequence function enables the drive to perform itself in 52 steps (4 steps x 7 units + 24 steps) without the PLC.The processing speed is faster than control with the PLC as the function uses internal data and signals directly.

Reliable safety function

The VF-AS3 has STO (Safe Torque Off) function as standard and is highly reliable to cut off output in an emergency.

The STO function brings the machine safely into a no-torque state and prevents it from starting accidentally.

It complies with safety standards IEC 61800-5-2 and also achieves SIL3 level in IEC 61508:2010.

In addition, the following safety functions are available as options:

-SS1 (Safe Stop 1)

-SOS (Safe Operating Stop)

-SS2 (Safe Stop 2)

-SBC (Safe Brake Control)

-SLS (Safely-Limied Speed

-SDI (Safe Direction)

Toshiba AS3 Drives 1hp to 500hp

Sords Electric
216-765-4230
www.sordselectric.com

Heat Trace Cable - Heating Cable

Heating Cable

As winter is upon us, it is time to think of freeze protection and keeping pipes warm. Heating Cable is one way to do this, we sell electric heat trace. All heat tracing requires INSULATION. It will not work without it.

There are two main types of heating cable; self regulating and constant wattage.

Self-regulating cable
Self Regulating Heating Cable has two parallel conductors or bus wires extruded in a polymer core. The core's resistance changes porportionally with temperature.

The key to understanding Self-regulating cable is the output adjusts proportionally to the cable sheath temperature not the temperature of the pipe heated.

There is no direct feed back for the pipe temperature. Most self-regulating cables are designed to give their rated wattage at 50 degrees F. The wattage output willexceed the rated wattage when the cable temperature is below 50 degrees and the lower the cable temperature the larger this wattage i.e. amperage is. INRUSH!! A high start up current is the result. Tight temperature control is also more difficult with self-regulating cable, because the wattage output is always changing seeking 50 degrees F on the cable not the pipe or fluid in the pipe.

Self-regulating cable works quite well for freeze protection applications. Freeze protection and low temperature applications that do not require very tight control. The inrush can be considered on the design of wiring and breakers, and there are some other cost savings to consider. A thermostat is recommended for most applications. However, when there are several very short runs or several pipe size changes one ambient thermostat can save on a job.

The semi-conductive core contains a graphite network, which allows electricity to flow from one bus wire to the other. When the core is dense and colder, there are many paths for electricity to take through the graphite network, producing more heat.

Since the core material expands as it heats, the graphite network is elongated, disrupting some of the paths. More and more paths are disrupted as heating continues until the system reaches self-controlled thermal stability. When the core material cools it contracts, reconnecting some of the electrical paths in the graphite network, and more equivalent heat is produced.

This temperature response occurs independently at each point along the heater. If an externally produced high temperature occurs next to a low temperature in the cable, each section of heating cable will adjust its own heat output in relation to its own local requirements.

Advantages:

Cut to fit in the field.

Possible lower operating cost.

Possible lower installation cost.

Wide variety of wattages

Most tolerant to overlapping

Low Cost

Disadvantages:

High start-up currents

Difficult to precisely control temperature

Not well suited for procsss control

Low design temperatures

Constant Wattage Cable is made up with two parallel conductors or wires. These wires have a heater wire wrapped around and connected in approximately 2-foot intervals in parallel. This design provides constant wattage output or a uniform output all along its length. The heater wires are designed such that if any section of cable should fail the rest of the heater would continue to operate without change.

Constant wattage cable should NOT be overlaped. The effect of double the wattage where the cable crosses will cause high temp failures.

The constant wattage output makes maintaining higher and more accurate process temperatures easier. This cable is well suited for freeze protection and many low temp process control applications.

This cable can be cut in the field. When terminated the last 2-foot heater section becomes a cold sections "unheated". This provides an unheated section of cable to penetrate the insulation, enter the junction box and make up power connections. Constant Wattage Cable needs a thermostat on each pipe and each pipe size in order to maintain accurate temperature control.

Advantages:

Cut to fit in the field.

Easily controlled

Built in cold length at every power connection

Wide variety of wattage outputs

Low cost

480 Volt Cable available

Design Temperatures up to 500° F

Disadvantages:

Requires pipe sensing thermostats

CANNOT be overlaped