IRMCS2031

Step 5. (Optional)

J7 Connector, External I/O

Connect External I/O Connector (J7) as needed. All inputs are 5V tolerant.

Pin definition

Pin 1 : Analog input (+/-10V)

GND

5V

GND

1

2

15

16

J7 Top View

CALIB

START

FAULT Clear

STOP

User supplied

power supply

GND -10V +10V

10k ohm

potentiometer

Pin 2: N/A (open)

Pin 3: N/A (open)

Pin 4: N/A

Pin 5: N/A

Pin 6: GND

Pin 7: FAULT status output (3.3V when FAULT)

Pin 8: SYNC status output (3usec width of active

low pulse at every carrier frequency period)

Pin 9: PWMEN status output (3.3V when PWM

active)

Pin 10: +5V

Pin 11: START input (high to activate)

Pin 12: STOP input (high to activate)

Pin 13: CALIB input (high to activate)

Pin 14: FAULT CLR input (high to activate)

Pin 15: N/A (open)

Pin 16: GND

Figure 4. J7 Connector connection

Step 6. (Optional)

J8 Connector, Analog Output monitoring

18

J8 Top View

Figure 5. J8 Connector connection

Pin Definition

Pin 1: Channel 1 Analog output (0-5V)

Pin 2: GND

Pin 3: Channel 2 Analog output (0-5V)

Pin 4: GND

Pin 5: Channel 3 Analog output (0-5V)

Pin 6: GND

Pin 7: Channel 4 Analog output (0-5V)

Pin 8: GND

Step 7.

Connect the RS232C cable between 9-pin D-sub connector and PC.

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