Summary of Contents for Clinton MINI-TAURUS 990
- Page 1 ML990-1 CLINTON MODEL 990 MINI-TAURUS VARIABLE SPEED DC SERVO MOTOR NEEDLE POSITIONER THREAD TRIMMER SERVICE MANUAL 40-0253-01...
- Page 2 ML990-2 SECTION I PROGRAMMING MODE There are two ways to go from the operating to the programming mode. Press the button to go to the first group (SPEEDS). Continue pressing this key to step through the groups or press the button to go to the last changed parameter.
- Page 3 ML990-3 C. MASTER RESET (Caution: Overrides the program memory with default settings). Step 1: Turn power off. Step 2: Press the buttons simultaneously. Step 3: Turn on power while all three buttons are pressed. The display alternates between “PUSH SET“ and “FOR RESET". Step 4: Push the button within 10 cycles.
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Page 4: Section Ii Explanation Of Parameters
ML990-4 SECTION II EXPLANATION OF PARAMETERS A. PARAMETERS WITH DIRECT ACCESS 1. SPEEDS (spm, stitches per minute is the same as R.P.M.) a. SOFTSTRT (Soft start) Sets the r.p.m. of the machine while in the soft start option. (See page 1-3 (3a) and page 1-4 (4c)). Range: 140 to 2000 r.p.m. - Page 5 ML990-5 3. COUNTERS a. SOFT ST (SOFT START) Sets the number of beginning stitches of a new cycle sewn at “SOFTSTRT“ speed. (See page 1-2 (1b)). Range: 1 to 5 stitches Steps: 1 stitch Default: 3 stitches b. VENTfrt (Venturi front cut) This sets the number of stitches sewn with the venturi and chain cutter on once the eye has been covered at the beginning of the cycle.
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Page 6: Hidden Parameters
ML990-6 f. POS. EOC (Position End of Cycle) Sets the needle position at the end of the cycle. Default: Up g. VENTURI This parameter sets how the chain cutter can be turned on if a cut was missed at the end of a cycle. - Page 7 ML990-7A 3. **** TOGGLE SWITCHES a. DIRECTION Sets the direction of the motor either clockwise (++cw) or counterclockwise (--ccw). Default: --ccw b. AUTOMODE ( Automatic mode) If set to "AUTO" when material is placed in the machine covering the photo eye and the treadle is pressed the machine will sew at maximum speed until the photo eye is uncovered.
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Page 8: Section Iii Teach-In Mode
ML990-8A SECTION III TEACH-IN MODE 1. SETTING THE NEEDLE-DOWN AND NEEDLE-UP POSITIONS NOTE: The index signal from the motor must be set prior to setting the needle up and down positions. ( See systems test section for instruction on setting the index signal ). a. -
Page 9: Test Mode
ML990-9 SECTION IV TEST MODE A. BUILT-INTEST PROGRAM A test program is available to test the major functions for proper operation. To access the pro- gram press the buttons simultaneously. The display will read “SYSTEM TEST“ briefly then "PRESS "SET" !!", after which the following may be tested: 1. - Page 10 ML990-10 3. Motor balance Test CAUTION: Remove the sewing machine belt. Press the button. The display will read "CHECK BALANCE" briefly then "PUSH START (bal)". Press the button the motor will begin to rotate slowly in one direction and then the other, the display will read "PLEASE WAIT !!".
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Page 11: Connector Diagrams
ML990-11 SECTION V CONNECTOR DIAGRAMS Listed below are the pinouts for the Model 990 control box connectors. TOTAL PINS CONNECTOR PIN NO. FUNCTION SYNCHRONIZER DOWN SENSOR UP SENSOR TRIM SENSOR AUX INPUTS CHASSIS GND AUX OUTPUTS +48 V +48 V FOOTLIFT FOOTLIFT SOL. -
Page 12: Lcd Display
ML990-12 TOTAL PINS CONNECTOR PIN NO. FUNCTION ENCODER ENCODER (S1) ENCODER (S2) SIG. GND PHASE C PHASE B PHASE A INDEX LCD DISPLAY EXT1 CHASSIS GND AC POWER 220V 3 PHASE A PHASE B PHASE C CHASSIS GND MOTOR VOLTAGE PHASE A PHASE B PHASE C... - Page 13 TOTAL PINS CONNECTOR PIN NO. FUNCTION NOT USED NOT USED COMMUTATOR ENCODER (S1) ENCODER (S2) SIG. GND PHASE C PHASE B PHASE A LCD DISPLAY EXT1 CHASSIS GND AC POWER 220V 3 PHASE A PHASE B PHASE C CHASSIS GND MOTOR VOLTAGE PHASE A PHASE B...
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