Hitachi Releases Trio Of Letterbox TFT Displays

Hitachi Display Products has announced the availability of a trio of letterbox-format 8:3 aspect ratio TFT display modules. Two 6.2in TFT displays are available: the TX16D18VM2CAB features a resolution of HSVGA (800 x 300 pixels) while the TX16D11VM2CAC features a resolution of HVGA (640 x 240 pixels). Also introduced is a 10.2in TFT display featuring a resolution of HSVGA (800 x 256 pixels).

Bright, colourful images are produced due to the optical performance provided by the white LED backlight - featuring a brightness of 350cd/m and a contrast ratio of 200:1. To aid the development of graphical user interfaces, touch-panel versions of both 6.2in displays are available: the TX16D11VM2CQC (HVGA) and TX16D18VM2CQB (HSVGA). All versions of the 6.2in display modules feature the same mechanical and electrical specifications: with mechanical outline dimensions of 173.0 (w) x 70.0 (h) x 7.0mm (d) and a 40-pin 18-bit RGB CMOS interface - which enables a colour palette of up to 262K colours.

The compact 6.2in display module weighs 110g. The 10.2in TX26D89VM2BAA features a resolution of HSVGA (800 x 256 pixels), mechanical dimensions of 260.2 (w) x 96.2 (h) x 10.55mm (d) and weighs 240g. Other features include an industry-standard 18-bit RGB CMOS data interface and a CCFL backlight, providing a brightness of 350cd/m and a contrast ratio of 500:1. Typical applications for these 8:3 letterbox-format displays include fitness equipment, hand-held instrumentation, process-control panels, gaming and amusement machines.

Hitachi Introduces Microdrive Pump Sleep Mode Functionality

Hitachi America, Ltd., Industrial Systems Division, today announced the availability of Pump Sleep Mode functionality in its X200 And SJ200 Series Microdrives. The functionality is implemented utilizing only the inverter’s built-in PID control, logic and timing functions as a basis. Together with parameter settings, external jumper wiring is all that is required to realize the sleep mode operation.

Hitachi X200 Series AC Drives

• Contactor-style package (power in at top/motor out at bottom)
• Emergency stop function
• Improved trip avoidance
• Advanced logic and calculate functions
• Suitable for side-by-side mounting
• Patented micro-surge voltage suppression
• Non-stop operation after instantaneous power failure
• Built in RS-485 Modbus/RTU
• Ratings ¼ to 3 hp, 230 V, single or 3-phase; 5 to 10 hp, 230 V, 3-phase; ½ to 10 hp, 460 V, 3-phase

Hitachi SJ200 Series VFD Inverters

• New Intelligent Sensorless Vector Control - NO Autotuning Required!
• Up to 200% Starting Torque
• Most compact Hitachi inverter ever
• Advanced Logic and Calculate functions
• Removable terminal strips for easy wiring
• Dynamic Braking transistor built in
• Advanced trip avoidance functions
• Removable Keypad
• NEMA 4X Remote Keypad option
• MODBUS RTU RS-485 built in
• Ratings ¼ to 10hp, 230V, single and 3 phase, ½ to 10hp, 460V, 3 phase

Standard PID control may, depending on system demand, allow a pump to operate at undesirably low speeds for prolonged periods of time, which can cause mechanical issues with certain pump types. In general, it is a wasteful use of energy, since most pumps do not generate significant flow or head at low speeds. A means is needed to stop the pump when no pumping is actually taking place. The term “sleep mode” is used to describe such a means. The implementation requires no additional hardware beyond what is required for standard PID operation.

The simple set-up and wiring is described in an Application Note (AN080717-1) which is available to view or download in the Technical Support Library area of Hitachi America’s web site.