Thermal3 Command
ldd info

Description The "Calibrate", "Power", "Power Manual" and "Hold" laser diode control modes display laser diode driver information as follows:

LDD: Control Mode=<Control Mode>
LDD: Control State=<Control State>
LDD: Laser Mode=<Laser Mode>
LDD: Setpoint Power=<Setpoint Power> Watts
LDD: Calibrate Power=<Calibrate Power> Watts
LDD: Laser Power=<Laser Power> Watts
LDD: Laser Setpoint A=<Laser Setpoint> Amps
LDD: Laser Current A=<Laser Current> Amps
LDD: Laser Temperature A=<Laser Temperature> C
LDD: Laser On Time A=<Laser On Time> Hours
LDD: Laser Setpoint B=<Laser Setpoint> Amps
LDD: Laser Current B=<Laser Current> Amps
LDD: Laser Temperature B=<Laser Temperature> C
LDD: Laser On Time B=<Laser On Time> Hours

The "Current", "Current Manual" and "Off" laser diode control mode displays laser diode driver information as follows:

LDD: Control Mode=<Control Mode>
LDD: Control State=<Control State>
LDD: Laser Mode=<Laser Mode>
LDD: Laser Power=<Laser Power> Watts
LDD: Laser Setpoint A=<Laser Setpoint> Amps
LDD: Laser Current A=<Laser Current> Amps
LDD: Laser Temperature A=<Laser Temperature> C
LDD: Laser On Time A=<Laser On Time> Hours
LDD: Laser Setpoint B=<Laser Setpoint> Amps
LDD: Laser Current B=<Laser Current> Amps
LDD: Laser Temperature B=<Laser Temperature> C
LDD: Laser On Time B=<Laser On Time> Hours

The laser diode control mode is set by the monitor commands ldd cal (dual|a|b) <setpoint>, ldd on (dual|a|b) <setpoint>, ldd on man (dual|a|b) <setpoint>, ldd current (dual|a|b) <setpoint>, ldd man (dual|a|b) <setpoint>, ldd hold and ldd off. The laser diode control mode will be one of the following:
  • Calibrate
  • Power
  • Power Manual
  • Current
  • Current Manual
  • Hold
  • Off

The laser diode control state is set by the monitor commands ldd cal (dual|a|b) <setpoint>, ldd on (dual|a|b) <setpoint>, ldd on man (dual|a|b) <setpoint>, ldd current (dual|a|b) <setpoint>, ldd man (dual|a|b) <setpoint>, ldd hold and ldd off. The laser diode control state will be one of the following:
  • Pause Enable
  • Detect
  • Ramp Up
  • Settling
  • Power
  • Unstable
  • Error
  • Current
  • Hold
  • Ramp Down
  • Pause Disable
  • Off

The laser diode laser mode is set by the monitor commands ldd cal (dual|a|b) <setpoint>, ldd on (dual|a|b) <setpoint>, ldd on man (dual|a|b) <setpoint>, ldd current (dual|a|b) <setpoint>, ldd man (dual|a|b) <setpoint>, ldd hold and ldd off. The laser diode laser mode will be one of the following:
  • Dual
  • A
  • B

The setpoint power is the desired laser power for the "Calibrate", "Power", "Power Manual" and "Hold" laser diode control modes.

The calibrate power is the laser power measured by the beam-balance sensor for the "Calibrate" laser diode control mode.

The laser power is the laser power measured by the laser diode sensor.

The laser setpoint is the setpoint laser current and the laser current is the actual laser current.

The laser temperature is the temperature of the laser diode.

The laser on time is maintained by the NVS parameters ldd laserontimea and ldd laserontimeb.

Notes Thermal 1.0 / 1.7x equivalents:
  • The monitor command ldd info is equivalent to head status dtd.

Thermal 2 equivalents:
  • The monitor command ldd info is comparable to ldd info.

Related Documents COMMAND: ldd cal (dual|a|b) <setpoint>
COMMAND: ldd on (dual|a|b) <setpoint>
COMMAND: ldd on man (dual|a|b) <setpoint>
COMMAND: ldd current (dual|a|b) <setpoint>
COMMAND: ldd man (dual|a|b) <setpoint>
COMMAND: ldd hold
COMMAND: ldd off
COMMAND: ldd drivemode [(eqcur|eqpwr|eqdisp)]
COMMAND: ldd sample
PARAMETER: ldd laserontimea
PARAMETER: ldd laserontimeb

Applies to: THERMAL3
Access: FIELD
Modified: Wed Jul 16 04:28:35 2008
Updated: Wed Jul 16 04:52:20 2008
Module: LDD