Instruction/ maintenance manual of the product Ultra Miniature High Performance Microstepping Drpive Intelligent Motion Systems
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T intelligent motion systems, inc. Excellence in Motion TM 370 N. MAIN ST ., PO BOX 457, MARLBOROUGH, CT 06447 PH. (860) 295-6102, F AX (860) 295-6107 Internet: http://www .
The information in this book has been carefully checked and is believed to be accurate; however , no responsibility is assumed for inaccuracies. Intelligent Motion Systems, Inc., reserves the right to make changes without further notice to any products herein to improve reliability , function or design.
SECTION P A GE 1 LIST OF T ABLES AND FIGURES ..................................... 1 2 INTRODUCTION ............................................................... 2 3 PIN ASSIGNMENT AND DESCRIPTION ........................... 3 4 ELECTRICAL SPECIFICA TIONS .
LIST OF FIGURES Figure 1 DIMENSIONAL INFORMA TION .............................. 4 Figure 2 MOUNTING INFORMA TION .................................... 6 Figure 3 SETTING OUTPUT CURRENT ................................ 9 Figure 4 MOTOR CONNECTIONS ....
SECTIO N 2 INTRODUCT ION The IM481H is a high performance, yet low cost microstepping driver that utilizes advanced hybrid tec hnology to greatly reduce size without sacrif icing features. The IM481H is exceptional ly small, easy to interface and use, yet powerful enough t o handle the m ost demanding applic ations.
3 1,2 PHASE A Phase A of the stepp ing motor is c onnected betw een pi n 1 and p in 2. See section 8. 3 CURRENT REDUCTION ADJUST Phase current reduct ion adjustm ent input. A resistor connected betw een this pin and pin 4 ( if use d to set motor phase c urrent ) w ill proportionately reduce cu rrent in both windings approxim ately .
SECTIO N 4 ELECTR ICAL SPECIFIC ATIONS Tabl e 1 Test Param eters: T A = 25 o C,+V = 48v TEST CONDI TION MIN TYP M AX UNITS INPUT V OLTAGE ....................................................................................... 12 ....... 45 ........ 48 * .
SECTION 6.1 5 Dimensions in Inches (mm) MECHANICAL SPECIFICATIONS PIN 1 2.700 (68.6) 2.450 (62.2) 2.225 (56.4) 0.563 (14.3) 1.100 (27.9) 0.225 (5.7) 0.
SECTION 6.2 MOUNTING INFORMATION Dimensions are in Inches (mm) * The Isolating Thermal Pad (TI-481) item “4” is supplied with the INT-481 Interface Board. If the INT-481 is not used, the Thermal Pad must be ordered seperately. 6 Pin #1 1.875 (47.63) 0.
7 IM481-H Driver, INT-481 Interface Board, H-481 Heat Sink Panel Mount A B C E 1 2 F 3 4 H * 0.915 (23.25) Ref. IM481-H Driver, INT-481 Interface Board Panel Mount without Heat Sink A B C 1 2 4 * 0.180 (4.57) Ref. # m e t I / t c u d o r P n o i t p i r c s e D .
OUTPUT CURRENT SECTIO N 7.1 DETERM INING THE OUTPUT CURRENT For any given motor, the OUTPUT CURRENT used for MICROSTEPPING is determi ned different ly from that of a HALF/FULL STEP driver. In the IM481H, a sine/cosine output function is used in rotat ing the motor.
SECTION 7.2 SETTING OUTPUT CURRENT The OUTPUT CURRENT on the IM481H is set by applying a voltage to pin 5 (current adjustment). The output current is set as follows: PEAK OUTPUT CURRENT (Amps) = Volts applied to pin 5 EXAMPLE: 1.4 volts applied to pin 5 will set the peak output current of the IM481H to 1.
SECTIO N 7.3 RESISTOR T ABLE Table 3 PEA K OUTPUT CURRENT REFER ENCE RESISTOR VA LUE (1 %) (A MPS) ( VOLT S) (OHMS) 0.20 ................................ 0.20 ............................. 200 0.25 ................................ 0.25 ...............
W ARNING! Do not connect or disconnect the AC power leads or the motor leads with power applied! 1 1 MOT OR SECTION 8.1 MOTOR SELECTION The IM481H is a Bipolar driver which works equally well with both Bipolar and Unipolar motors, ( i.e. 8 and 4 lead motors and 6 lead center tapped motors (see section 8.
8 LEAD MOTOR SERIES CONNECTION 6 LEAD MOTOR HIGHER SPE ED CONFIGURATION ( HAL F CO IL ) NC: NO CONNECTION MOTOR CONNECT IONS 1 2 Figure 4 6 LEAD MOTOR HIGHER TORQUE CONFIGURATION ( FULL COIL ) NC: NO .
POWER R EQUIREM ENTS SECTIO N 9.1 MOTOR POW ER Pins 11 (ground), and 12 (+V) are used to c onnect the motor DC power to the IM481H. Two local capacit ors are needed, connected between pins 11 and 12 and locat ed as close to the pins as possi ble, to insure stable operation.
SECTIO N 9.2 +5 VDC INPUT The IM481H requires an external regul ated +5Vdc power supply. The supply is connected between pins 11 (ground), and 14 (+5vdc). A 22 microfarad 10v tantilum capacitor must be placed as close to the IM481H as possible between the +5vdc input pin (14) and ground.
SECTIO N 10 LAYOUT AND INTERF ACE GUIDELINES Logic level signals should not run parallel to motor phase signals. The motor phase signals will introduce noise into the logic level signals and can make the system unreliable. Motor phase signals should run as pairs and should be separated f rom other signals by ground traces where possi ble.
MICROSTEP S ELECTION Table 5 RESOLUTION STEPS/REV RESOLUTION RESOLUT ION RESO LUTION RESO LUT ION (Microsteps/St ep) (1.8 o Step Mo tors) SELECT 0 SELECT 1 SELECT 2 SE LECT 3 PIN 7 PIN 8 PIN 9 PIN 10 .
SECTIO N 12 FULLSTEP OUTPUT SIGNAL The FULLSTEP output signal from the IM481H is an active high output at pin 18. This output is TRUE for the duration of the full step. A full st ep occurs when either Phase A or Phase B cross t hrough zero (i.e. full c urrent in one winding and zero current in the other winding).
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 +5V 4.7k Ω 4.7k Ω 4.7k Ω 4.7k Ω 4.7k Ω 1k Ω 2.2k Ω 2.2k Ω 4.7k Ω Fault In Resolution Select 0 Resolution Select 1 Resolution Sel.
CURRENT REDUCTION RESISTOR SECTIO N 15 AUTOM A T IC CURRENT REDUCTION Built into the IM481H is the ability to automatically reduce the current in the motor windings after t he completion of a move. The reduction occ urs approximately .5 s econds after the last positive going edge of the Step Clock input.
SECTIO N 16 FA ULT P ROTE CTION The IM481H is internally protect ed against over temperature, and over current. The over temperature set point is between 60 and 70 °C.
SECTIO N 18 OPTIONS/A C CESSORIES DESCR IPT ION P A RT NU MBER Thermal Pad TI - 481 Interface Board INT-481 Heat Sink ( Includes mounting hardware ) H-481 21 Pin Right Angle Connector HY481-CN021 Smal.
22 APPENDIX A Recommended Cable Configurations: DC Supply to IMS Driver Cable length, wire gauge and power conditioning devices play a major role in the performance of your IMS Driver and Motor . NOTE: The length of the DC power supply cable to the IMS Driver should not exceed 50 feet.
23 Shield to Earth Ground on Supply End Only Shielded T wisted Pair (Wire Size from IMS Driver Supply Cable AWG T able) π T ype RFI Filter ≥ Required Current Cable Length as required T ransformer :.
24 Shield to Earth Ground on Supply End Only Shielded T wisted Pair (Wire Size from IMS Driver Supply Cable AWG T able) π T ype RFI Filter ≥ Required Current Cable Length as required 120 or 240 V A.
25 IMS Driver Supply Cable AWG T able 1 Ampere (Peak) 2 Amperes (Peak) 3 Amperes (Peak) 4 Amperes (Peak) Length (Feet) Minimum A WG Length (Feet) Minimum A WG Length (Feet) Minimum A WG Length (Feet) .
26 Cable length, wire gauge and power conditioning devices play a major role in the performance of your IMS Driver and Motor . NOTE: The length of the DC power supply cable between the IMS Driver and the Motor should not exceed 50 feet.
27 Shield to Earth Ground on Supply End Only Ferrite Beads Cable Length 50 Feet or greater Phase A Phase A Phase B Phase B Phase A Phase A *L ≈ 0.5 MH * 0.5 MH is a typical starting point for the Common Mode Line Filters. By increasing or decreasing the value of L you can set the drain current to a minimum to meet your requirements.
28 1 Ampere (Peak) Length (Feet) Minimum AWG 10 25 50* 75* 100* 20 20 18 18 16 2 Amperes (Peak) Length (Feet) Minimum AWG 10 25 50* 75* 100* 20 18 16 14 14 3 Amperes (Peak) Length (Feet) Minimum AWG 1.
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WARRANTY TWENTY-FOUR (24) MONTH LIMITED WARRANTY Intelligent Motion Systems, Inc. (“IMS”), warrants only to the purchaser of the Product from IMS (the “Customer”) that the product purchased fr.
IM481H Operating Instructions P.O. Box 457, 370 North Main Street Marlborough, CT 06447 U.S.A. Phone: 860/295-6102 Fax: 860/295-6107 Email: info@imshome.com Home Page: www.imshome.com TECHNICAL SUPPORT Eastern U.S. Phone: 860/295-6102 Fax: 860/295-6107 E-mail: etech@imshome.
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