1A-HHT Hand Held Terminal

Product Description: The 1A-HHT is a remote control hand-held terminal. For about the same cost as a common MPG (manual pulse generator), our 1A-HHT includes axis position display, two manual jog modes, and 19 other machine control features.

Serial communication simplifies the wiring, and together with our cable kit option, reduces the number of external connections required, down to just 4 wires. Except for one edit to the 'men' file, the 1A-HHT can be used as a plug-n-play device that requires no Isagraf edits to run. ^note1

The 1A-HHT can be used with customized VB programs (not included) as a teach pendant for more complex applications.

Perfect for digital drives applications: No encoder channels needed, no I/O modules & racks needed!

Features Comparison
Spec	Common MPG	1A-HHT Hand-Held Terminal
Axis Position Display	none	'Part coordinate' position shown for selected axis, including indication of units: in, mm, or deg.
E-Stop / Jog Mode Status Display	none	Animated E-Stop status display. Jog type and jog resolution display.
Override Displays	none	Feed rate, Rapid rate, Jog rate, and Spindle RPM override displayed in percentages.
Part Set-up Functions	none	Option Stop, Block Delete, End of Block Stop
In-Cycle Functions	none	Cycle Start, Feed Hold, Cycle Stop (NOTE1)
Override Functions	none	Feed rate, Rapid rate, Jog Rate, & Spindle RPM
HHT On / Off Control	none	Standard keypad button
Axis Select Configuration	Discreet I/O that must all be programmed from within Isagraf	Automatically configured by reading OpenCNC variables for: Axis letters, rotary/linear type and valid parameter check. No programming needed!
Jog Modes	Handwheel only	Incremental or Continuous (NOTE1)
Jog Resolution Configuration	Discreet I/O that must all be programmed from within Isagraf	Automatically configured by reading OpenCNC variables. No programming needed! Continuous jog resolutions Low (10%), Med (30%), High(50%) Incremental jog resolutions Linear INCH: .0001", .001", .01", .1", 1", 3". Linear METRIC: .001mm, .01mm, .1mm, 1mm, 10mm. Rotary: 1deg, 10deg, 45deg, 90deg, 180deg.
Programmable Custom Functions	none	Keypad buttons Aux 1, Aux 2, Aux 3, Aux 4 are programmable for use within Isagraf for any purpose desired. When pressed, they send a USER type command to the Isagraf "message application" in exactly the same way that the .gen screen does.
Teach Pendant Application	none	The Auxiliary keypad buttons above can be programmed for use as a teach pendant in conjunction with other external VB programs (not included).
LED indicators	none	HHT On / Off, Option Stop, Block Delete, End Of Block Stop, Jog Mode Active
Audio Status / Alarm	none	Long beep for error indication. Short beep for change of status, or keypad press confirmation. Repeated beep for continuous press functions.
E-Stop Switch	Red, detent, twist release	Red, detent, twist release with display status indication
Interface Options	Discreet I/O that must all be wired one by one	Serial RS232 or optional USB (NOTE2)
Configuration & Troubleshooting Tools	none	Maintenance Viewer user interface software is included. It shows port status, port settings, HHT hardware status, OpenCNC status, and has many features for checking individual keypad buttons, LED's, LCD Display locations, etc. See the "Configuration & Troubleshooting Software" section of this web page below for more details and a screen shot.
# of external wires needed at install (4 axis mach sample)	17	4 (not including 3 pre-wired to cable kit)
Max cable length	???	Tested to 75' with our standard cable kit.
Interface Hardware Required	(1) Encoder channel, (7) I/O points, & I/O rack	Serial port
Approximate Total Installation Time	4 hours (based on: cut hole 15min, wire to TB 30min, 17wires x 5min ea, pciQuad test 5 min, dioInTest 5min, syms file edit 5min, tune file edit5min, Isagraf logic 90 min)	1.5 hours (based on: cut hole 15min, wire to TB 30min, HHT to serial port 5min, DC power 10min, E-Stop 10min, Software Install Shield Wizard 10min, config & diagnostics 5min, men file edit 5min)
Approximate Total Cost to Project	$1,337 (based on: MPG $975, 7x I/O modules $70, partial I/O rack $40, TB's & wire $35, Enc channel $212, Strain relief $5.)	$975 (based on: S3-HHT-CC and S3-HHT-C2 pricing from Jan-06, which includes HHT unit, software, 20ft retractile external cord, 25' internal cable kit, terminal block & cord strain relief.) This pricing may change without notice.

Set-up and diagnostics software is included with each unit shipped. It provides an easy Maintenance Viewer screen showing the status of the PC com port, the 1A-HHT hardware, and the connection to OpenCNC. It has great diagnostics tools.

When clicking on the Maintenance Viewer LCD display area, a text box pops up allowing you to write messages right on the 1A-HHT LCD like a dumb terminal. Clicking on the LED's to turn them on & off. When keypad buttons are pressed on the 1A-HHT, an animation shows up on the Maintenance Viewer, confirming that the message was received by the PC. All of these features are designed to make it easy to configure and test the 1A-HHT unit offline.

(This text-only version does not have the wiring diagram, but does not require acrobat.)

As of Jan-2006, please direct inquires for this product to S3, service, Service, SERVICE! at 248-765-3836.

NOTE1: Continuous jog mode, cycle stop, and Aux1-4 functions require Isagraf changes using the sample code provided on this web site. However, due to the varying and customized methods of control integration in use, the Isagraf logic should ALWAYS be reviewed to ensure safe interaction and operation with the rest of the machine behavior.

NOTE2: USB connection not recommended for Windows NT installations, and should only be used on Windows 2000 or later.

A 90 day direct replacement warranty applies for any manufacturing defect, starting from S3 ship date. The 1A-HHT requires OpenCNC 6.2 or later (however, legacy versions can be written for an added cost). Runtime & Maintenance Viewer software is required in order for hardware to operate, and is sold as one license per one machine. Software must be pre-registered including machine type and serial number.

Part #	Description
S3-HHT-CC	1A-HHT-CC Serial / USB Hand Held Terminal 24 key hand held terminal with 4x20 LCD display, serial port, E-Stop pushbutton, 4ft retractile cord (20ft stretched), 1A-HHT_Instructions.pdf, and software.
S3-HHT-H1	Wall Mounted Holster
S3-HHT-H2	Magnetized Holster
S3-HHT-PU	USB Adapter
S3-HHT-C2	25ft Internal Cable Kit for Serial HHT 25ft DB9 M-F extension cable for routing inside wire duct, conduit, or electrical cabinet w/strain relief & terminal block.
S3-HHT-C5	50ft Internal Cable Kit for Serial HHT 50ft DB9 M-F extension cable for routing inside wire duct, conduit, or electrical cabinet w/strain relief & terminal block.
S3-HHT-C7	75ft Internal Cable Kit for Serial HHT 75ft DB9 M-F extension cable for routing inside wire duct, conduit, or electrical cabinet w/strain relief & terminal block.