Monday, November 20, 2006



Monitoring or controlling motors, heaters, or other power consuming electrical devices has never been easier. With Red Lion's New Non-Contact Current Transducers you can convert those high level current signals into simple 4 - 20 mA or 0 - 10 VDC process signals. These new sensors are available in solid core cases for new wiring, and split core cases to simply clamp over existing wiring. They are perfect for long cable runs and very cost effective.
The model CTD is a DC current transducer combining a Hall Effect sensor and a signal conditioner in a single package. The CTD has jumper selectable input current ranges of 50A, 75A, and 100A and provides a self-powered 4-20 mA output. It is available in a split case model only.

The model CTL average responding AC current transducers combine a current transformer and a signal conditioner in a single package. The CTL transducers are designed for use with “linear” or sinusoidal AC waveforms, and are best suited for constant speed loads or on/off loads. They feature jumper selectable input current ranges up to 200A and have models with 0-10VDC or 4-20 mA outputs. Models are available in both solid and split core cases.

The model CTR true RMS AC current transducers combine a current transformer and a signal conditioner in a single package. The CTR transducers provide a “true RMS” output on distorted waveforms found on VFD or SCR outputs, and on linear loads in “noisy” power environments. Select the CTR series for variable speed or SCR controlled loads. They feature jumper selectable input current ranges up to 200A and are available in a split core case with a 4-20 mA output.
The model CTS AC current operated switches combine a current transformer, signal conditioner and limit alarm in a single package and can be used for status monitoring or proof of operation applications. They offer an extended setpoint range of 1-150 A, universal solid-state outputs capable of switching AC or DC, and are available in both solid and split core cases.

Monday, November 13, 2006



Aromat NAIS/Matsushita Electric Works established a new world standard "SLIM" PLC. Starting from 10 I/O to 32 I/O, the CPU is only 25(w) x 90(h) x 70(d)mm. This is about 1/4 the size of the traditional bulky PLC style called "Brick". The FP0 saves precious panel space and money. Relay output types have removable screw terminal blocks. Power supply connector is also quick disconnect. Easy installation specially when you duplicate many systems. Up to 16 loops of PID and auto tuning are built into this “SLIM” PLC. The FP0 uses floating point math for its PID calculation which is more accurate than an integer PID. With the new thermocouple input unit, the FP0 can easily and accurately control temperature while it’s controlling I/O. The PID values can be easy calculated by the built-in auto tuning feature. 16 Auto Tuning loops can run at same time. The I-PD algorithm is also available to offer smoother control for sensitive applications. The picture left shows how small controller can control 8 loops of temperature, I/O and 2 axis of Motion.

The Aromat/NAiS FP0 Series PLC is still expandable up to 3 expansion unit right side of the CPU. It is also possible to mix and match with relay, transistor and analog. The FP0 can communicate via Ethernet, Internet, Modem as well as RS232C/485 for RTU application. Or FP0 can send E-mail out with FPWebServer. You can also monitor and edit the program via Modem, Ethernet, RS485 and RS232C. The FP0 is still world smallest PLC but it got powerful feature and industrially built. The FP0 has simultaneous 2 axis trapezoidal motion control. Programming is very simple. All you have to do is to set the low speed, high speed, acceleration time, target position and you are ready to do motion control. You can control up to 9.5KHz total.