Intelligent Motion Systems INT-481 User manual

intelligent motion systems, inc.
ExcellenceinMotionTM
QUICK REFERENCE
370 N. MAIN ST., PO BOX 457, MARLBOROUGH, CT 06447
PH: [phone], FAX: [phone]
Internet: www.imshome.com, E-Mail: [email protected]
TM
INT-481
INTERFACE BOARD FOR THE IM481H DRIVER
INT-481 Quick Reference Guide
The primary function of this Quick Reference Guide is to aquaint
the user with the specifications, basic wiring and configuration of
the INT-481 Interface Board for the IM481H Driver. More
information is available on both products in the full IM481H
product manual saved in Acrobat PDF format on the IMS Product
CD, shipped with the product. It also may be downloaded from
the IMS web site at http://www.imshome.com.
Notes And Warnings
Please observe the following when handling, connecting and using
your INT-481 Interface Board. Failure to observe these points may
result in damage to the Interface Board or the IM481H Driver. All
warranty and disclaimer information is located in the full product
manual on the CD and should be referenced for more information.
For More Information:
See the complete IM481H Product Manual
on the IMS Product CD or at www.imshome.com
Electrical Specifications*
MIN TYP MAX UNIT
Opto Supply
Isolated Inputs.......................................... +5 ........................ +40 ........ V
Input Forward Current
Isolated Inputs............................................5 ............................1 5....... m A
Opto Input Forward Voltage
Isolated Inputs.......................................................... 1. 5 ...... 1.7 ......... V
Reverse Breakdown Voltage
Isolated Inputs............................................5 ............................................... V
Signal Output Current
Full Step, Fault............................................................................2 0 ....... m A
Drain Source Voltage
Full Step, Fault..........................................................................100 ........ V
Drain Source Resistance
Full Step, Fault, IDS= 25mA).......................... 6.5 ..........................Ω
* All test data was taken at 25°C and +V = 45 VDC.
INT-481 P1 Connector Pin Assignment
Output Current Adjust/Current Reduction*
The INT-481 utilizes the IM481H’s internal current source to
adjust the Output Current of the IM481H. To calculate both the
Run Current and the Reduced Current** (hold) refer to the
IM481H instruction manual. The figure below shows the resistor
connections for both run and hold currents.
* When connecting both the current reference and current reduction resistors,
connections should be made as short as possible to minimize the noise coupled
into the driver.
** WARNING! DO NOT install the Current Reduction resistor when the JP2 jumper is
in the “ENON” position. See JP2 under “Isolated Inputs”.
Pin 7
+5VDC Optocoupler Supply
Step Clock Pin 9
CW/CCW Direction Pin 8
Enable/Disable Pin 5
Reset Pin 6
OPTO/+5V +5V
JP1
GRN
RED
LED1
FAULTPOWER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
13
JP2
ENOFF/ENON
13
JP1
OPTO/+5V
1
2
3
4
SW1
MS0
MS1
MS2
MS3
21 1
ØB
ØB
ØA
ØA
ENA
RST
+5V
OS
DIR
STP
CLK
FLT
FUL
STP
+V
GND
CUR
ADJ
CUR
RED
13
JP2
ENOFF/ENON
13
JP1
OPTO/+5V
Isolated Inputs
JP1: If the shunt is placed on the “OPTO” side of the jumper the
power for the Opto Isolators must be provided by the user at Pin
7 on the P1 connector. If the shunt is placed on the “+5V” side of
the jumper then the Opto Isolators will be powered by the
on-board supply and electrical isolation between the inputs and
the drive power will be eliminated.
JP2: If the shunt is placed on the “ENON” side of the jumper then
the drive outputs will be automatically disabled approximately 0.5
seconds after the last step clock input.
NOTE: In this mode the current reduction resister MUST NOT be
used or it will cause erratic operation of the driver. If the shunt is
placed on the “ENOFF” side of the jumper then a current reduc-
tion resister can be used to set the level of current in the motor
after the last step clock input.
Typical Opto Isolated Inputs
JP1 And JP2 Jumpers
Revision 061605
GRN
RED
LED1
FAULT POWER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
13
JP2
ENOFF/ENON
13
JP1
OPTO/+5V
1
2
3
4
SW1 MS0
MS1
MS2
MS3
21 1
Pin 13
Pin 14 Pin 15
Current Adjust Resistor
1/8 W 1% W
Reduction Adjust Resistor
1/8 W 1% W
WARNING! The INT-481 Interface Board and IM481H Driver
components are sensitive to Electrostatic Discharge (ESD). All
handling should be done at an ESD protected workstation.
WARNING! Hazardous Voltage Levels may be present if you are
using an open frame power supply to power the INT-481 Interface
Board and IM481H Driver.
WARNING! Ensure that the Power Supply output voltage does not
exceed the maximum input voltage of the IM481H Driver.
WARNING! Do not operate the IM481H Driver without a
Current Adjustment Resistor! If you are installing the INT-481
Interface Board the resistors may be added to it.
A resistor MUST be placed between the Current Adjust Input (Pin
14) and ground (Pin 13) to keep the IM481H Driver, the INT-481
Interface Board and/or motor in a safe operating range.
WARNING! Do not connect or disconnect the motor leads or the
AC power supply with power applied.
Please see the motor and driver documentation for other warnings
and notes.
Pin # Pin Name Description
1Phase B
——
Phase B Output
2Phase B Phase B Output
3Phase A
—Phase A Output
—
4Phase A Phase A Output
5Enable When this input is HIGH, motor phases are energized.
6 Reset When LOW, this input will Reset the Driver.
7 Opto Supply +5 to +24 VDC external Optocoupler power supply.
8Direction This input changes the direction of the motor. The physical
direction depends on the connection of the motor windings.
9Step Clock A positive going edge on this input advances the motor one
increment. The size of the increment is dependent on the
Microstep Select Inputs.
10 Fault This Output indicates a short circuit has occurred or a low
was detected on the Fault Input. This Output is active HIGH.
11 Full Step
This Output indicates when the driver positions the motor
one Full Step. This output can be used to count the number
of Full Steps the motor has moved regardless of the
number of Microsteps. This output is active HIGH.
12 +V +12 to +48 VDC Motor Power Supply.
13 Ground Power Supply Ground.
14 Current
Adjust Phase Current Adjustment Input. A voltage applied to this
Input sets the peak Phase Current of the motor.
15 Current
Reduction
Phase Current Reduction Input. A resistor connected
between this pin and Pin 14 (if used to set motor current)
will proportionately reduce the current in both windings
approximately 0.5 seconds after the last positive edge of
the Step Clock Input.

© Intelligent Motion Systems, Inc.
LED Indicators
The green LED is controlled by the on-board +5VDC power supply.
The red LED is controlled by the Fault Output of the IM481H. If the
red LED is illuminated turn off power and check for a system fault.
A fault may be caused by a short or incorrect wiring of the motor
or power supply. A fault condition can only be reset by cycling
power or toggling of the Reset Input on P1 Pin 6. In the case of
an over temperature fault allow the drive to cool before re-
applying power.
Fault Protection
The INT-481 adds phase to ground fault protection to the
IM481H. If a phase to ground fault is detected the IM481H will
latch the signal, set the Fault Output and illuminate the red Fault
LED. To clear the fault condition, the IM481H will have to be
Reset or power will need to be cycled.
The INT-481 buffers the IM481H Fault Output signal through an
open drain N-channel FET. The signal at the terminal strip is
inverted and is active LOW.
In the case of an over temperature fault, neither the red LED or
the Fault Output become activated. The IM481H’s motor outputs
will disable. They will not re-enable until the drive cools to a safe
operating level.
Full Step Output
The INT-481 buffers the IM481H Full Step Output through an
open drain N-channel FET. The signal available at the terminal
strip is inverted and is active low. Reset or Power Up = Full Step.
Recommended Wiring
Logic level cables must not run parallel to power cables. Power
cables will introduce noise into the logic level cables and make
your system unreliable.
Logic level cables must be shielded to reduce the chance of EMI
induced noise. The shield needs to be grounded at the signal
source to AC ground. The other end of the shield must not be
tied to anything, but allowed to float. This allows the shield to act
as a drain.
Motor cabling in excess of 1 foot requires twisted pair shielded
cable to reduce the transmission of EMI. The shield must be
connected to AC ground at the driver. The other end of the shield
must not be tied to anything, but allowed to float. This allows the
shield to act as a drain.
Power supply leads to the driver need to be twisted. If more than
one driver is to be connected to the same power supply, run
separate power and ground leads from the supply to each driver.
Refer to the IM481H operating instructions for recommended
motor and power supply cables.
Mechanical Specifications
Dimensions in Inches (mm)
Resolution Microstep Select DIP Switch Settings
Microstep/Step Steps/Rev SW 1:1
(MSEL0)
SW 1:2
(MSEL1)
SW 1:3
(MSEL2)
SW 1:4
(MSEL3)
Binary Microstep Resolution Settings (1.8˚ Motor)
2
4
8
16
32
64
128
256
400
800
1,600
3.200
6,400
12,800
25,600
51,200
ON ON ON ON
OFF ON ON ON
ON OFF ON ON
OFF OFF ON ON
ON ON OFF ON
OFF ON OFF ON
ON OFF OFF ON
OFF OFF OFF ON
Decimal Microstep Resolution Settings (1.8˚ Motor)
5
10
25
50
125
250
1,000
2,000
5,000
10,000
25,000
50,000
ON ON ON OFF
OFF ON ON OFF
ON OFF ON OFF
OFF OFF ON OFF
ON ON OFF OFF
OFF ON OFF OFF
Invalid Resolution Settings: May Cause Erratic Operation
ON OFF OFF OFF
OFF OFF OFF OFF
GRN
RED
LED1
FAULTPOWER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
13
JP2
ENOFF/ENON
13
JP1
OPTO/+5V
1
2
3
4
SW1
MS0
MS1
MS2
MS3
21 1
ØB
ØB
ØA
ØA
ENA
RST
+5V
OS
DIR
STP
CLK
FLT
FUL
STP
+V
GND
CUR
ADJ
CUR
RED
1
2
3
4
SW1
MS0
MS1
MS2
MS3
ON
Microstep Resolution Selection
The number of microsteps per step is selected by the dip switch
(SW1). The following table shows the standard resolution values
along with the associated switch settings.
MSEL Switch Shows 50 Microsteps/Step Selected
In the above table ON is ground and OFF is floating.
*
Mounting Information
INT-481 Interface Board with IM481H Driver and H-481 Heat Sink
INT-481 Interface Board and IM481H Driver
Panel Mounted without H-481 Heat Sink
* The Isolating Thermal Pad (TI-481) item #4 is supplied with the Interface Board.
Mounting Parts List**
Item # Description Qty.
1 IM481H Microstepping Driver .......................................1
2 INT-481 Inteface Board........................................................ 1
3 H-481 Heat Sink......................................................................... 1
4 TI-481 Isolating Thermal Pad.......................................... 1
A #6-32 x 0.625” Pan Head Screw...............................2
B #6 Split Lock Washer............................................................ 2
C #6 Flat Washer, 0.250” OD,
0.145” ID, 0.030” Thick ............................................. 2
E #8-32 x 2” Pan Head Screw............................................ 2
F #8 Split Lock Washer ............................................................ 2
H Spacer, 0.312” OD, 0.171” ID, 0.500” L........... 2
GRN
RED
LED1
FAULT POWER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
13
JP2
ENOFF/ENON
13
JP1
OPTO/+5V
1
2
3
4
SW1
MS0
MS1
MS2
MS3
21 1
3.000
(76.2)
0.275
(6.99) 2.450
(62.23)
1.550
(39.37)
0.575
(14.6)
2 XØ 0.143
(3.6) Thru.
0.620
(15.75)
0.920
(23.37)
Heat Sink
This Side
21 Pin Right Angle
Connector
HY481-CN021
*
** The hardware items A, B, C, E, F, H, are supplied with the H-481 Heat Sink Kit
but not with the INT-481 Interface Board.
NOTE: The torque specification for the #6-32 INT-481 and IM481H mounting screws
is 5.0 - 7.0 lbs-in.
WARNING! The Heat Sink mounting surface must be a
smooth, flat surface with no burrs, protrusions, cuttings
or other foreign objects!