
Introduction
BA Intellidrive User’s Manual
1-14
Aerotech, Inc.
Version 1.4
Figure 1-15.
RS232 Daisy Chain
1.4.6. LED Status Indicators
The BAI contains two LED’s located on the front of the unit that indicate the fault status
of the unit, refer to Figure 1-8. One of the LED’s indicates if power is applied to the unit,
the second indicates the status of the amplifier. A green light indicates the amplifier is in
the ready state, while a red light indicates a fault or the power stage is disabled.
1.4.7. The I/O Port (P1)
The I/O port is a 25-pin “D” style connector that contains all of the general-purpose I/O
functions. These include:
•
six non-dedicated digital I/O signals (3 input/3 output)
•
two dedicated digital I/O signals (External Enable/Amp Fault)
All of the digital I/O is opto-isolated inputs and outputs. One of the two dedicated I/O
signals enables/disables the power stage externally and the second indicates the fault
status in the amplifier.
The pinouts for the 25-pin connector are shown in Table 1-2. More detailed information
about pin functions is in Chapter 7: Technical Details.
COM Port
T
R
GND
2
3
5
2
3
5
2
3
5
COM
COM
COM
BAI
(Unit A)
BAI
(Unit B)
BAI
(Unit C)
R
T
GND
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