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CUBE™ Laser Operator’s Manual
Table 5-4. CW RS-232 Commands and Queries (Sheet 4 of 4)
COMMAND
FUNCTION
RANGE
DESCRIPTION
EXT
***Ext.
Analog laser
pwr. control
0,1
Commands either the power or current to be
set by the external Analog Modulation
input. A query of this command returns the
status of this command.
EXT=1 for external
EXT=0 for internal.
The external connector is located at the
laser pin 8 on the DE-15 connector.
T
***Turns TE
ON
0, 1
Reads or Sets the TEC status.
1 = Enables temperature control of the laser
diode
0 = Disables the temperature control and
turns off the laser emission automatically
CW
***CW or
Pulse Mode
0, 1
Switches the operating mode from CW
(CW=1) to pulse (CW=0). If pulse mode is
set, the laser will run at the threshold power
if no voltage is present at the digital pulse
input connector.
?F - The ?F fault returns the fault status as an integer value representing the sum of all current faults.
?FF - The ?FF fault returns the fault status as a two byte binary
representation of the current fault.
0000 0000 0000 0000
MSB
LSB
?FL - The ?FL query returns the fault status as a binary string.
Table 5-5. Fault Codes
?F
ERROR
VALUE
?FF
BIT
?FL
BIT
0
DESCRIPTION
CAUSE
POSSIBLE
SOLUTION
System OK
1
0 LSB
1
Bad Command
Syntax error associated with
the command
Review and correct command
syntax
2
1
2
Bad Data
Entered data is out of range or
syntax error associated with
the data
Review range of entered data
or correct syntax
4
2
3
EEPROM
Checksum Error
Error associated with system
EEPROM
Reboot the laser system. If the
problem persists, return to
Coherent for service.
5-8