Troubleshooting
Problem (4):
The device does not respond to your own terminal program.
Solution: Make
sure
that:
Communication can be established with PI software
You have sent the proper
address selection code
or that there is
an SC command in the autostart macro with the proper unit
address (see Native Commands manual for explanation)
Baud rate settings on controller and host match
Problem (5):
The controller communicates and reports position values, but the
connected stage or motor does not move.
Solution:
Make sure that the motor brake is set to OFF. Some stages
without a physical brake deactivate the motor when the brake
signal is in the default ON state
Verify that the limit-switch-polarity and stage-has-limit-switches
axis parameters (depends on stage type) are set properly (in
native command set, commands: Lx, in GCS SPA)
Verify that the hardware-interlock limit switch polarity is properly
set (DIP switch 7 OFF for active-high, for standard PI DC motor
drives)
Problem (6)
Commands are not recognized.
Solution
In MMCRun, try using "straight" instead of "protected" command
mode. Perhaps the command in question is too new to be
recognized by this version of the program
Make sure multi-character commands are followed by a valid
termination character (CR for native, LF for GCS command set)
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C-863 MS173E Release 1.2.7
Page 31
