Mach-DSP User’s Manual
Document Number: MACH-DSP-9021
Page 24
www.ScannerMAX.com
LED3 will illuminate red whenever TTL Output 2 is
active
.
(See section 7.6 for more info.)
LED4 will illuminate red whenever TTL Output 1 is
active
.
(See section 7.6 for more info.)
LED5 will illuminate green when power is applied to the board.
4.3a
Error Indications
Note that in addition to their roles of indicating communication and servo activity, LED1
and LED2 are also used together to indicate when faults occur during the operation of
the Mach-DSP. Faults are indicated by LED1 and LED2 flashing back and forth, in a
kind of railroad-crossing manner. The number of back-and-forth flashes will indicate the
error number in accordance with the table below.
Errors indicated by railroad-crossing flashes of LED1 and LED2
Flashes
Problem that occurred
1
RS-232 Reception Error (probably wrong baud rate)
2
RS-232 data does not conform to protocol
3
Inability to read system voltages and temperatures
4
XY2-100 or FB4 data error, or loss of Frame Sync
5
RS-232 command is not supported by present firmware
6
Inability to correctly read or interpret the coil temperature
(the remainder of this page is intentionally left blank)
