Control Signals
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Control Signal/Screen for:

LNS-XXXX/HP/QCW/USB, HVC-XXXX/USB




LD-1500, -3000 series:

Connector: D-sub 15P male

1,9 Cur.Adj. Analog Input signal to control output current
2,10 Ext.Start Input signal enables output current either ON or OFF
3,11 Ext.Key Input signal enables power supply either ON or OFF
4,12 Ready Output signal indicates power supply is ready for output
5,13 Laser Output signal indicates output current is flowing
6,14 Fault Output signal indicates the unit is in fault condition
7,15 CW/Pulse Input signal to activate CW or PULSE mode
8 FG Isolated GND
Note:

Lower numbers (1,2,3,4,5,6,7) are positive inputs, and higher number (9,10,11,12,13,14,15) are the return (FG).


CPZ-series:

Connector: AMP-MTA 0.1" Friction Lock Header

1 AC100V/200V AC input
2 N/C No connection
3 AC100V/200V AC Input
4 N/C No connection
5 GND DC Power GND
6 HVRTN H.V. Return line
7 POWER Analog signal to control H.V current
8 +5V DC power
9 LASER Drive signal enables power supply to be either ON or OFF. In Pulse mode, a modulated pulse train will be inputted.
10 SP Input signal to activate Super Pulse mode


CSF-, CPF-, CNF- series:

Connector: D-sub 9P & 15P male

9P 15P

1 1 RESET Input signal to recover from a fault condition.
2 2 +5 DC power used inside circuit of power supply.
3 3 GND DC power ground
4 4 LASER Drive signal enables power supply to be either ON or OFF. In Pulse mode, a modulated pulse train will be inputted.
5 5 CW/PULSE Input signal to activate CW or PULSE mode.
6 9 READY Output signal indicate that power supply is ready for use.
7 10 POWER Analog signal to control output current
8 11 FAULT Output signal indicates that protection circuit inside power supply is activated.
9 12 SIMMER Input signal to activate simmer mode.
Option:

6 H.V. 1 Analog signal proportional to H.V current.

7 H.V. 2 Analog signal proportional to H.V voltage1.

8 H.V. 3 Analog signal proportional to H.V voltage2.

CSF-25000,-50000 series:

Connector: D-sub 25P male

1 REST Input signal to reset FAULT condition
2 +5V DC power for the internal circuit of power supply
3 GND +5V DC ground
4 LASR Input signal enables power supply either ON or OFF
5 RAMP Input signal to activate RAMP signal
6 HVON Output signal indicates H.V output voltage existing
7 HVCR Analog output signal corresponding to total H.V current
8 HVLT Analog output signal corresponding to H.V output voltage
9 TEMP Output signal indicating over temperature failure
10 SWOC Output signal indicating over current failure in primary circuit(#1)
11 CWPL Input signal to activate CW or PULSE mode
12 HVOV Output signal indicating H.V over voltage failure
13 HVOC Output signal indicating H.V over current failure
14 REDY Output signal indicates power supply is ready for H.V output
15 POWR Analog input to control H.V current
16 FULT Output signal indicates power supply is in fault condition
17 DEST Output signal indicating over current failure in primary circuit(#2)
18 GDD Power GND for external circuit
19 SIMR Input signal to activate simmer mode
20 SIGG Analog GND
21 VDD DC power for external circuit
22 PWFL Output signal indicating phase failure
23 WVFM Analog signal showing SW current
24 LEAK Output signal indicating over H.V leakage current
25 ENBL Input signal enables power supply ON state

Control Signal

(extracted from Manual)
  • 1.4 CONTROL SIGNALS

    Lic's laser power supplies use 9, 12, and 25 signals to control and monitor the power supply. These signals are completely isolated from an internal main AC line and GND line is connected to system ground (earth GND). In the following chapter, only 12 signals are described. The remaining signals will be explained in a separate MANUAL attached with a specific unit. The control signals are active-high logic as described below:.

  • 1.4.1 LASER signal (INPUT) for all model

    Laser signal controls output(s) of the power supply to be either ON or OFF. In Pulse mode, a modulated pulse train will be inputted. Whenever LASER is high, the power supply will produce a high voltage from its output.

    CAUTION:
    If LASER signal is high during starting period of the power supply, high voltage output will appear suddenly as soon as READY comes. This could be dangerous under certain conditions. To prevent such accidental high voltage, keep LASER off before applying AC power to the power supply.
  • 1.4.2 CW/Pulse signal (INPUT) for CPZ-series, and CSF-25000/50000 only

    This signal is used to select either CW mode or Pulse mode. When this is high, the unit operates in CW mode, and when it is low, the unit operates in Pulse mode. While the unit is operating, do not change this signal. It may cause a FAULT condition.

  • 1.4.3 POWER signal (INPUT) for all models

    Analog signal to control laser head current both in CW and Pulse mode.
    Even in Pulse mode, the POWER signal will control an average H.V.. pulse current.

  • 1.4.4 RESET signal (INPUT) for all models except CPZ-series

    To reset an activated protection circuit and to recover from the fault condition, this signal must be on and then off. The unit starts to restore not at the rising edge of RESET signal(ON edge) but the falling edge (OFF edge). If the fault is caused by a temporary reason (that is, the fault reason is already removed before sending RESET), the unit will be restored to a previous operating condition as soon as RESET signal comes to the OFF edge. But the fault condition exists, the unit may operate for a short time until protection circuits detect the fault condition again. If the unit keeps showing a fault after several resets, do not try resetting again. This could harm the unit.

    SECTION 1: DESCRIPTION

    CAUTION:
    The power supply will produce sudden high voltage as soon as RESET signal comes to off edge
  • 1.4.5 SIMMER signal (INPUT) as Options

    Analog signal to control simmer current both in CW and Pulse mode. As soon as this signal is input, the unit will generate an H.V. output controlled by SIMMER level.

    CAUTION:
    Even if the LASER is off, H.V. current will flow in this mode unless SIMMER signal is zero. Be aware that the unit will create sudden H.V. when AC power is applied.
  • 1.4.6 READY signal (OUTPUT) for all models except CPZ-series

    Indicates that the power supply is ready to use. When internal main voltage is settled, this signal comes to high.

  • 1.4.7 FAULT signal (OUTPUT) for all models except CPZ-series

    Indicates that OVER CURRENT, OVER VOLTAGE or OVER TEMPERATURE protection circuits inside the unit are activated. When the protection circuits detect a fault condition, the unit stops operation instantaneously, sending this signal to external.

  • 1.4.8 HV1 signal (OUTPUT) as Options

    Output signal to monitor the laser head current. This signal is proportional to a real laser head current.

  • 1.4.9 HV2 and HV3 signal (OUTPUT) as Options

    Output signals to monitor the laser head voltages. These voltages are proportional to a real laser head voltage.