Mesa 7I27 Manual

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7I27 MANUAL

Rev 1.1

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Summary of Contents for Mesa 7I27

Page 1 7I27 MANUAL Rev 1.1...
Page 3: Table Of Contents
Table of Contents GENERAL ............1 DESCRIPTION .
Page 4: General
The 7I27 is a dual 10A 40V Hbridge intended for motion control applications when used with the MESA 4I27, 4I34M, 4I65, 5I20, or 7I60 motion control cards. The 7I60 uses a 50 pin flat cable interface to the motion control card.
Page 5: Hardware Configuration
HARDWARE CONFIGURATION DIRECTION JUMPERS There are only two jumper selectable options on the 7I27 card, The channel 0 and 1 directions. Jumpers W1 and W2 are used to reverse the direction of motor drive relative to the DIR signal from the controller. The default setting of W1 and W2 are towards the right.
Page 6: Connectors
CONNECTORS CONNECTORS, LEDS, AND DEFAULT JUMPING 7I27 MANUAL 3...
Page 7: Motor And 5V Power Connector
CONNECTORS POWER CONNECTOR The power connector TB2 is the center of the three screw terminal blocks on the 7I27. TB2 pinout is as follows: MARKING FUNCTION 1 (LEFT) 5V LOGIC POWER 2 (CENTER) POWER GND 3 (RIGHT) +12 to +40V MOTOR POWER MOTOR CONNECTORS Motor connections are made to screw terminals TB1 and TB3.
Page 8: Encoder Connectors
P5 pinouts are as follows:: FUNCTION 1 (TOP) INDEX ENCA ENCB MOTORSENSE CONNECTORS P2 and P3 give access to the MOTORSENSE0 and MOTORSENSE1 lines to the controller. P2 and P3 pinouts are as follows: FUNCTION 1 (TOP) MOTORSENSE 0 or 1 7I27 MANUAL 5...
Page 9: Controller Connector
MOTOR0 ENCA INDEX1 INDEX0 MOTOR1 PWM MOTOR0 PWM MOTOR1 DIR MOTOR0 DIR /MOTOR1ENA /MOTOR0ENA NC ON 7I27 NC ON 7I27 MOTOR1 SENSE MOTOR0 SENSE NC ON 7I27 NC ON 7I27 NC ON 7I27 NC ON 7I27 NC ON 7I27 NC ON 7I27...
Page 10: 5V Power
4.5V will cause the 7I27 to be forced into a reset state. If the controller cable is longer than 2 feet it is suggested the the 7I27 5V power be supplied from the screw terminal. This is because of the voltage drop on the controller cable.
Page 11: Encoder Wiring
The following are suggestions to mitigate this potential problem: 1. Twist motor leads 2. Shield motor leads - This is the purpose of the GND pin on the motor connectors 3. Shield encoder leads 4. Route encoder leads away from the motor leads 7I27 MANUAL 8...
Page 12: Specifications
SPECIFICATIONS 5V POWER SUPPLY 4.5V 5.5V 5V CURRENT ---- 350 mA MOTOR POWER ABS MAX 50VDC PER MOTOR CURRENT CURRENT LIMIT OPERATING TEMP. OPERATING TEMP. (-I version) OPERATION HUMIDITY 95% NON-CONDENSING 7I27 MANUAL 9...