Specifications

LA Series Linear Servo Amplifier Technical Reference Manual
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10.6.1 Serial Commands
The following commands are supported over the serial port communications interface.
A – Alarm Reset
This command allows viewing or resetting the alarm status. “A” with no parameter is used to read the
alarm status. “A 1” is used to reset the alarm status. Note: When an alarm is detected by the system, the
drive is immediately disabled .
B – AutoBalance
This command is used to invoke the autobalance algorithm. During autobalance the display will indicate
“-“ (middle bar).
E – Enable Status
This command is used to set/view the enable state of the drive. Note: When an alarm is detected by the
system, the drive is immediately disabled.
There are two modes of Enable operation, Software and Hardware. In Hardware mode, the drive enable
is controlled by the hardware Enable input on J1.See the "e" command for setting the active level. The E
command only allows viewing the enable state when in “hardware” enable mode.
Software enable mode is configured following a reset and BEFORE the hardware input is used. The drive
will come up disabled and the E command can be used to enable (E1) or disable (E0) the drive. If at any
time during software mode operation, the hardware input goes active, the drive reverts to hardware mode
as described above .
e - Set Active Enable Level
This command sets or views the active level for the hardware enable input. Entering e 0 sets the level to
active low. Entering e 1 sets the level to active high. Entering e without any value returns the present
setting. The factory default level is 0 (active low) to enable. This command is valid as of software version
2.4.0
F – Factory Defaults
This command is used to set all the parameters to the factory defaults. Use the “S” command to save
the settings to NVM following the F command. By not automatically saving the defaults, the user can
choose to go back to the original settings (that were in the drive before the F command was used) by
resetting the drive .
f - Set Active Fault Output Level
This command sets or views the active level for the Fault output. Entering f 0 sets the active Fault output
to low for a fault condition. Entering f 1 sets the active Fault output high for a fault condition. Entering f
without any value returns the present setting. The factory default level is 1 (active high) for a fault
condition. This command is valid as of software version 2.4.0
H – Help
This command lists a summary of commands and their function.
L – List all parameters
This command lists all the user settable parameters and system readings to the display. The enable and
alarm status are also shown.