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Table of Contents
Related Manuals for Mesa 7i48
Summary of Contents for Mesa 7i48
- Page 1 7I48 MANUAL Six channel analog servo amp interface V1.6...
- Page 2 This page intentionally almost blank...
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Page 3: Table Of Contents
Table of Contents GENERAL ............1 DESCRIPTION . -
Page 4: General
TTL inputs a RS-422 receivers for differential encoder inputs. The controller connection is a 50 pin header that matches the pinout of the Mesa anything I/O series of cards. The 7I48 uses Phoenix compatible 3.5 mm headers and is supplied with pluggable terminal blocks. -
Page 5: Hardware Configuration
CABLE POWER/P1 POWER SELECTION The 7I48 can get its operating power from the flat FPGA cable or from P1. For testing and with very low power encoders, cable power can be used. W1 selects whether cable power connects to the 7I48s 5V supply. -
Page 6: Connectors
CONNECTORS CONNECTOR LOCATIONS AND DEFAULT JUMPER POSITIONS 7I48 3... -
Page 7: Controller Connector
50 pin header connector J1 connects to the anything I/O card/motion controller. This can be a male 50 pin header on the top of the 7I48 card or a female 50 conductor header on the bottom side of the 7I48 depending on 7I48 model. Controller connector pin-out is... -
Page 8: Servo Amp/Encoder Connectors
CONNECTORS SERVO AMP/ENCODER CONNECTORS The 7I48's servo amplifier / encoder connectors (P2,P3, and P4 ) are 3.5MM 24 pin headers compatible with Phoenix style screw terminal blocks (supplied). Connector P4 has the I/O signals for channels 0 and 1: P4 PIN... - Page 9 CONNECTORS SERVO AMP/ENCODER CONNECTORS Connector P3 has the I/O signals for channels 2 and 3: P3 PIN FUNCTION ENCA2 TO 7I48 /ENCA2 TO 7I48 FROM 7I48 ENCB2 TO 7I48 /ENCB2 TO 7I48 FROM 7I48 IDX2 TO 7I48 /IDX2 TO 7I48...
- Page 10 CONNECTORS SERVO AMP/ENCODER CONNECTORS Connector P2 has the I/O signals for channels 4 and 5: P2 PIN FUNCTION ENCA4 TO 7I48 /ENCA4 TO 7I48 FROM 7I48 ENCB4 TO 7I48 /ENCB4 TO 7I48 FROM 7I48 IDX4 TO 7I48 /IDX4 TO 7I48...
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Page 11: Operation
OPERATION PWM RATE The 7I48 is meant to operate with PWM rates from 24 KHz to 500 KHz. Operation at lower PWM rates will result in excessive output ripple, operation at higher PWM rates or with PDM with higher than 10 MHz base frequency will result in poor linearity. When used with HostMot2 firmware, the PWM generators should be set for UP/DOWN mode (mode 2) and the PWM frequency set for 24 KHz. -
Page 12: 5V Power
The 7I48 requires ~400 mA of 5V power for operation. Encoder power can also be supplied from the 7I48's 5V source. Power for the 7I48 is normally supplied from P1 but can also be supplied via pin 49 of the 50 conductor controller cable when testing or when low power encoders are used. -
Page 13: Specifications
OUTPUT RIPPLE @ 24 KHZ PWM % FS LINEARITY % FS (no missing codes, 13 bit resolution with 24 KHz PWM) ZERO OFFSET ERROR ENCODER FREQUENCY (8 MHz multiplex frequency selected) OPERATING TEMP. OPERATING TEMP. (-I version) OPERATION HUMIDITY NON-COND 7I48 10... -
Page 14: Drawings
DRAWINGS 7I48 11...
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